CN110667966A

CN110667966A - Label paper carrier

Info

Publication number: CN110667966A
Application number: CN201911019238.8A
Authority: CN
Inventors: 史中伟; 史正; 樊杰飞
Original assignee: Hangzhou Zhongya Machinery Co Ltd
Current assignee: Hangzhou Zhongya Machinery Co Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-01-10

Abstract

The invention discloses a label paper carrier which comprises a shape-preserving unit and a carrying plate, wherein the shape-preserving unit comprises a shape maintaining piece, a pushing piece, a jacking rod and a return spring, the shape-preserving unit is provided with a shape-preserving surface distributed around the central line of the shape maintaining piece and a sliding groove distributed around the central line of the shape maintaining piece, the pushing piece is embedded in the sliding groove and protrudes out of the shape-preserving surface, the shape maintaining piece is fixedly connected with the carrying plate, and the jacking rod is movably arranged on the carrying plate in a sliding mode. The label carrier avoids bearing other functions by only realizing a single lifting function, so that the height of the label carrier for lifting the label is not restrained by the obstruction of the parts of the label carrier, and the label carrier has a larger lifting height.

Description

Label paper carrier

Technical Field

The invention relates to a label carrier.

Background

Common cup-associated products are mainly small cups of yogurt. The package of the yoghourt product comprises a cup body, label paper attached to the surface of the cup body and a cover film attached to the cup opening. The combination mode of the label paper and the cup body comprises thermoplastic lamination and thermal shrinkage lamination, and the two modes correspond to label paper made of different materials. In the thermoplastic attaching mode, the label paper is placed in a mold cavity required by the cup body forming in a curling state before the cup body is extruded and formed, and the label paper is attached to the label paper when the sheet is extruded and formed in the mold cavity after being heated; the curling state is that the short strips of label paper are rolled into a three-dimensional tubular structure, and the head and tail parts of the label paper are overlapped but not fixedly connected. In the mode of thermal shrinkage fitting, the cup body is formed, the label paper is not in a curled state, but the label paper is tubular, the continuous tubular label paper is cut into shorter label paper, the label paper is sleeved on the formed cup body, and finally the label paper is heated to be combined with the cup body. In the production stage of the combined cup product, an independent combined cup product can be obtained only by filling, sealing and cutting after the cup body is formed. The label paper is combined on the cup body in the forming stage; produced in a thermal shrinkage fitting mode, the label paper is combined on the cup body after the cutting stage (when an independent combined cup product is formed, the distance between the combined cup products is larger, and the label is convenient to sleeve). Compared with the two combination modes, the structure of the initial state of the required label paper is different, and the difference also exists in the intervention stage of the production process.

The mode of thermal shrinkage fit of label paper and cup body is called as thermal shrinkage sleeve label technology. The existing thermal shrinkage sleeve label technology can install label paper with high attaching degree for the cup body with relief design and multi-curved surface design, so that the requirement of label paper packaging required by cup body appearance innovation and change can be actively met.

In the process of combining the cup body and the label paper, the cup body is positioned and located at a fixed position, and the label paper is lifted below the cup body until the label paper is sleeved outside the cup body. Because the label paper is combined on the cup body by the tiny friction force, the label paper is most likely to be separated from the cup body before the label paper is heated and shrunk. Therefore, the prior thermal shrinkable label technology adopts a pre-shrinking treatment technology, namely, the label paper is heated at the end close to the cup mouth after being sleeved on the cup body, so that the label paper is locally heated and shrunk. The label is fixed on the cup body, but the label only partially shrinks at the moment.

The common preshrinking technology in the prior art is implemented on the basis of the structure of the lifting label paper. The lifting component is provided with four vertically arranged air pipes, the end parts of the air pipes are closed, air outlets are arranged only on the side surfaces of the air pipes, and the air outlets of the four air pipes face to the same area. The side of the air pipe is provided with a bulge structure, and the bulges of the four air pipes can just drag the label paper. On each air pipe, the distance from the air outlet to the bulge is equal to the height of the label paper. When the cup is lifted, the label paper is supported by the bulge and moves upwards along with the air pipe until the label paper is sleeved on the cup body, and the air outlet is just aligned with the end of the label paper close to the cup mouth. Before this, because the heat-shrinkable label is placed on the carrier before being lifted, the air outlet must surround the label from one end of the label until the air outlet reaches the other end of the label and the protrusion contacts the label before the protrusion contacts the label. The medium for heating the label paper is water vapor. In the actual production process, because the gas outlet of trachea continues outwards output vapor, the in-process gas outlet of label paper by the lifting is at the back and forth movement of label paper side for the whole mark paper is heated, but benefits from the time of being heated and avoids obvious shrink for short time.

The four air pipes are used for pushing the protruding structures of the label paper, the protruding structures are not located at the top ends of the air pipes but located at the lower ends of the air pipes, so that the moving range of the protruding structures on the air pipes is limited by the operating position at the top ends of the air pipes, the higher position cannot be obtained, the height which can be reached by ejecting the label paper is limited by the air pipes, the air pipes distributed at the protruding positions can only be suitable for the label paper with one height, and the application range of the carrier component for loading and outputting the label paper in the prior art is limited.

Disclosure of Invention

The invention aims to solve the technical problem of how to enlarge the lifting height of the label paper, thereby obtaining a label paper carrier with reasonable structural design.

In order to solve the technical problems, the invention adopts the following technical scheme: the label carrier comprises a shape-preserving unit and a carrying plate, the shape-preserving unit comprises a shape maintaining piece, a pushing piece, a jacking rod and a return spring, the shape maintaining piece is integrally of a columnar structure, the shape maintaining piece is hollow, a shape-preserving surface distributed around the central line of the shape maintaining piece and a sliding groove distributed around the central line of the shape maintaining piece are arranged on the shape maintaining piece, the extending direction of the sliding groove is parallel to the central line of the shape maintaining piece, the sliding groove is communicated with the inside of the shape maintaining piece, the pushing piece is embedded in the sliding groove and protrudes on the shape-preserving surface, the shape maintaining piece is fixedly connected with the carrying plate, the jacking rod is movably mounted on the carrying plate in a sliding mode, one end of the jacking rod penetrates through the carrying plate and is connected with the pushing piece, the return spring is mounted on the jacking rod, and one end of the return spring is connected with the other end of the jacking rod, The other end of the return spring is connected with the object carrying plate. The power provided by the outside is transmitted to the label paper through the jacking rod, so that the operation purpose of outputting the label paper is realized.

The pusher projects outwardly from the shape-retaining member and is adapted to push the label out of the shape-retaining member, where the outer profile of the shape-retaining member corresponds to the tubular structure of the label prior to heat-shrinking. In the technical scheme, the label carrier has the function of outputting the water vapor independently in function, and only has the function of pushing the label to output the label, so that the label carrier has higher lifting limit, namely the limit lifting height compared with the label carrier in the prior art. The reason is that the convex structure for pushing the label paper on the air pipe similar to the pushing piece in the prior art is not positioned at the top end of the air pipe but positioned at the lower end of the air pipe, so the movement range of the convex structure on the air pipe is limited by the operation position at the top end of the air pipe, and a higher position cannot be obtained; in the technical scheme, the lifting function is independent of different structural foundations, and the movement range of the pushing piece is not limited, so that the movement range of the pushing piece on the shape maintaining piece is larger. Compared with the prior art, the minimum distance from the convex structure on the air pipe to the cup mouth is larger than the minimum distance from the pushing member to the cup mouth in the technical scheme. The scope of propelling movement piece's propelling movement height is big, so, this technical scheme both can be applicable to the high difference mark paper, can export the great mark paper of height towards the cup body when the lifting height of propelling movement piece is lower, can export the less mark paper of height towards the cup body when the lifting height of propelling movement piece is higher.

In order to enable the label paper to be smoothly combined with and separated from the label paper carrier, the distance from one end of the shape keeping surface to the central line of the shape keeping piece is gradually reduced in the direction away from the object carrying plate, so that a gradually-changing guide structure is obtained, the guide structure plays a role in guiding when the label paper is added, and plays a role in facilitating separation of the label paper from the label paper carrier when the label paper is output.

The larger the amount of label paper output by the label paper supply device in unit time is, the larger the design redundancy for improving the capacity of the cup-connected product production equipment is. In the whole label paper supply sequence, the label paper supply device for inputting and outputting the label paper is firstly contacted with the label paper, if the carrying supply quantity of the label paper supply device is not consistent with the quantity of the cups to be processed, the time occupied by the label paper carrying supply can seriously slow down the work rhythm of the cup product production equipment, and finally the design productivity is low, so that the capacity of the entity equipment after the scheme is implemented can be judged to be lower. In order to ensure that the design capacity of the cup-connected product production equipment is not limited and has larger design redundancy, at least four shape-preserving units are arranged on the carrying plate in the label paper carrier on the circulating conveying path.

The interference that still should consider the ascending external force of horizontal direction and cause when marking paper carrier output marking paper, the condition of empting takes place when avoiding marking paper output promptly, for this reason, be equipped with spacing mouth on the propelling movement piece, the propelling movement piece is equipped with supporting part and spacing position in spacing mouth department, the orientation at supporting part is on a parallel with the extending direction of spout, the supporting part protrusion is on the shape face, the extending direction of orientation perpendicular to spout of spacing position, the maximum distance that the central line that spacing position reaches the shape preserving unit is less than the maximum distance of shape preserving face to the central line of shape preserving unit. The pushing member provides a limiting effect in the vertical direction and the horizontal direction at the limiting opening, so that the mark paper can maintain a tubular shape after being separated from the shape retaining member, and has certain resistance to interference from the horizontal direction.

The invention adopts the technical scheme that: the label carrier avoids bearing other functions by only realizing a single lifting function, so that the height of the label carrier for lifting the label is not restrained by the obstruction of the parts of the label carrier, and the label carrier has a larger lifting height.

Drawings

The invention is further described with reference to the following figures and detailed description.

FIG. 1 is a schematic view of a label carrier used in a label supply device according to the present invention;

FIG. 2 is a schematic view of a pre-shrinking component of a label supplying device of a label carrier according to the present invention;

FIG. 3 is a schematic structural diagram of a label carrier according to the present invention;

FIG. 4 is a schematic view showing the installation of a push-out label assembly having a label supplying device of the label carrier of the present invention.

Detailed Description

The cup-connected product production equipment comprises a cup body sealing device, a label paper supply device and a heat shrinkage furnace, and is shown in figures 1, 2, 3 and 4. The cup connecting product production equipment is provided with a cup connecting conveying path, the cup connecting conveying path is distributed with uncut cup connecting products which are formed by continuous sheets through hot pressing and then filled and sealed, and the cup body sealing device is used for sealing a cover film on a cup opening. The cup body sealing device, the label paper supply device and the thermal shrinkage furnace are sequentially arranged on the cup connecting conveying path, namely, an uncut cup connecting product firstly passes through the cup body sealing device, then passes through the label paper supply device and then passes through the thermal shrinkage furnace. The cup edge structures of uncut cup-connected products are connected into a whole, and the cup bodies are distributed in a matrix.

The label paper supply device comprises a push-out label component 1, a pre-shrinking component, a conveying component, a label paper carrier 2 and a cold pressing component 3.

The conveying component comprises a mounting rack, a chain wheel, a chain, a servo motor and a speed reducer. The chain wheels are installed on the installation frame through rotating shafts, four chain wheels are arranged on the installation frame, and the chain wheels are distributed in a matrix mode and are in parallel position relation with each other. The output shaft of the servo motor is fixedly connected with the input shaft of the speed reducer, the speed reducer is fixed on the mounting frame, the output shaft of the speed reducer is connected with one of the rotating shafts, and therefore the chain wheel on the rotating shaft can be driven by the servo motor to operate. The chain is arranged on the chain wheels which are arranged on the two rotating shafts at opposite positions, and the conveying component comprises two chains. The servo motor can drive the two chains to move synchronously. The chain is stretched and unfolded on the chain wheel to form an annular structure with two arc-shaped ends and a straight middle part. The chain moves in one direction, thereby forming an endless conveying path. The label carrier 2 is arranged on the chain, and when the chain runs, the label carrier 2 can do unidirectional motion on the formed circulating conveying path. The one-way movement direction of the chain is vertical to the conveying direction of uncut cup-connected products, namely the conveying direction of the cup-connected conveying path.

The ejector tab member 1 is located inside the conveying member, and it is surrounded by the circulating conveying path. The ejector tab member 1 includes a lifting assembly and an ejector plate 4. The lifting assembly comprises a servo motor, a speed reducer and a crank block assembly. The crank block assembly comprises a frame, two blocks, four guide rods, two swing arms, two connecting rods and a rotating shaft. The rotating shaft is movably arranged on the frame, and the swing arm is fixedly arranged on the rotating shaft. Four guide rods are symmetrically distributed on the frame, two guide rods are distributed on one side, two guide rods are distributed on the other side, and all the guide rods are parallel to each other. One sliding block is movably arranged on the guide rod at one side in a sliding mode, and the other sliding block is movably arranged on the guide rod at the other side in a sliding mode. One end of the connecting rod is movably connected with one end of the sliding block, and the other end of the connecting rod is movably connected with one end of the swing arm. An output shaft of the servo motor is fixedly connected with an input shaft of a speed reducer, the speed reducer is fixed on the frame, and an output shaft of the speed reducer is fixedly connected with the rotating shaft. After the servo motor works, the swing arm can be driven to swing, the swing arm drives the connecting rod to move, power is transmitted to the sliding blocks through the connecting rod, the sliding blocks do linear reciprocating motion along the guide rod, and the two sliding blocks synchronously move and do linear reciprocating motion in the vertical direction. The top push plate 4 is of a strip-shaped structure; still be equipped with the horizontal pole that is used for assembling push pedal 4 between two sliders, four push pedal 4 equidistance distribute on the horizontal pole, and the distance between adjacent push pedal 4 equals to be in the distance between the adjacent cup body side by side on alliing oneself with cup delivery path. The power of the lifting component comes from a servo motor, and the servo motor has controllability, so that the height of the top push plate 4 can be freely adjusted in a stroke; and the adjusting process is a stepless adjusting process and can reach any height within the stroke range. The top pushing plate 4 is located at a lower station in the initial state.

The lifting operation area of the push plate 4 is positioned below the cup-connecting conveying path and also positioned inside the circulating conveying path where the label carrier 2 is positioned, and the push plate 4 can drive the label carrier 2 positioned on the circulating conveying path after moving in the vertical direction.

The label carriers 2 are connected with the conveying part in a modularized mode, the length of the circulating conveying path is in a corresponding relation with the length of a single label carrier 2, and the length of the circulating conveying path is enough to ensure that the label carriers 2 arranged on the chain rows are in an equidistance distribution state.

The label carrier 2 comprises a shape-preserving unit 5 and a carrying plate 6, and two ends of the carrying plate 6 are respectively connected with two chains on a conveying component of the label supply device. The conformal unit 5 is of a cylindrical structure integrally and comprises a shape retaining member 7, a pushing member 8, a jacking rod 9 and a return spring 10. The shape retaining piece 7 is integrally in a cylindrical structure, is hollow inside, has one closed end and one open end and is communicated with the inside, the periphery of the body of the shape retaining piece 7 is provided with a sliding chute 11, and the sliding chute 11 is directly communicated with the inside of the shape retaining piece 7; the number of the slide grooves 11 is four, and the four slide grooves 11 are equiangularly distributed around the center line of the shape retaining member 7. The surface of the shape-retaining member 7 is a conformal surface, influenced by the structure of the runner 11, which is not continuously distributed, it is also distributed around the centre line of the shape-retaining member 7. Since the width of the shape retaining member 7 at the closed end thereof is gradually reduced in a direction away from the carrier plate 6, the distance from the end of the profile surface to the center line of the shape retaining member 7 is gradually reduced in a direction away from the carrier plate 6. The open end of the shape holder 7 is fixedly connected to the carrier plate 6. The pushing piece 8 is provided with a central connecting plate 12 and pushing blocks 13, the central connecting plate 12 is in a cross shape, four end parts are arranged on the central connecting plate 12, the pushing blocks 13 are fixed on the central connecting plate 12, the four pushing blocks 13 are arranged on the central connecting plate 12, and the pushing blocks 13 are fixed at the end parts of the central connecting plate 12. The pushing block 13 is a strip, one end of which is fixed to the central connecting plate 12, and the other end of which is used as an execution part for the operation of pushing the label paper. The pushing block 13 is provided with a limiting opening which causes the pushing member 8 to form a supporting part 14 and a limiting part 15 at the limiting opening.

The orientation of the supporting portion 14 is parallel to the extending direction of the sliding chute 11, and the supporting portion 14 protrudes on the protective surface; the limiting part 15 faces to be perpendicular to the extending direction of the sliding chute 11, the maximum distance from the limiting part 15 to the central line of the shape keeping unit 5 is smaller than the maximum distance from the shape keeping surface to the central line of the shape keeping unit 5, and thus the limiting part 15 is positioned in the back of the shape keeping surface. The edge of the label paper is contacted with the pushing block 13 at the position of the limit port to output the label paper, the supporting part 14 provides a supporting force in the vertical direction, namely the force required by the label paper to be separated from the shape retaining piece 7, the label paper is limited by the limit part after the label paper is separated from the shape retaining piece 7, so that the ideal tubular unfolding shape of the label paper is maintained when the label paper is pushed upwards by the pushing block 13, and the label paper can be smoothly sleeved on the cup body only by maintaining the shape.

One end of the jacking rod 9 is fixedly connected with the central position of the central connecting plate 12, and the other end of the jacking rod penetrates through the loading plate 6. The return spring 10 is installed on the jacking rod 9, and after the return spring 10 is installed, one end of the return spring is connected with the other end of the jacking rod 9, and the other end of the return spring 10 is connected with the loading plate 6. In the initial state, the return spring 10 pushes the lifting rod 9, so that the pusher 8 abuts against the carrier plate 6. Actuating the lifting rod 9 on either conformal unit 5 moves the pusher 8 towards the closed end of the shape-retaining member 7.

Four conformal units 5 are provided on the same carrier plate 6. The label carriers 2 are arranged in a straight line on the circulating conveying path, and after all the shape-preserving units 5 are distributed on the circulating conveying path, the shape-preserving units 5 are distributed to form a matrix arrangement state. The circular transport path finally obtains four rows of areas for transporting label paper by the shape retaining unit 5.

The label feeding station and the label discharging station are arranged on the circulating conveying path and are sequentially arranged in the conveying direction of the circulating conveying path, and the label paper carrier 2 firstly passes through the label feeding station and then enters the label discharging station. The label feeding station and the label discharging station are both arranged at a straight part of the circular conveying path. There will be one indexing station on each column of units 5, which is a station where one unit 5 receives the label from the output of the labeler, so there are four indexing stations on four columns of units 5. The four label feeding stations are not arranged side by side in the conveying direction of the circulating conveying path, but are distributed on the circulating conveying path in a staggered mode. Each row of units 5 has a small indexing station, which is the station where the units 5 deliver the index sheet outwardly.

The ejector label component 1 is positioned below the label discharge station.

The extension direction of the push plates 4 is parallel to the conveying direction of the circulating conveying path, one push plate 4 corresponds to one row of shape-preserving units 5, and therefore, one push plate 4 is arranged below the four rows of shape-preserving units 5. The length of the push plate 4 is less than that of a straight part of the circular conveying path, and after the push plate 4 makes ascending motion, a plurality of shape-preserving units 5 distributed in a matrix can be driven simultaneously, so that the label paper is output.

The pre-shrinking component is positioned above the label discharging station.

The pre-shrinking component comprises a mounting rack, a gas pipe 16 and a support plate 17. The mounting frame is of an arched frame structure and comprises a connecting rod 18 and a supporting frame 19, and the supporting frame 19 is n-shaped integrally. Two supporting frames 19 are arranged on the mounting frame, and the supporting frames 19 are fixedly connected through two connecting rods 18. The support frame 19 on the mounting frame is fixed on the mounting frame of the conveying component of the label supplying device, so that the mounting frame of the pre-shrinking component is fixedly connected with the mounting frame of the conveying component of the label supplying device. The air delivery pipes 16 are used for delivering water vapor, and each air delivery pipe 16 is composed of an L-shaped delivery part and a T-shaped air outlet part. One end of the conveying part is fixed on the connecting rod 18 of the mounting rack through a fixed seat, and the other end of the conveying part is connected with the middle part of the air outlet part into a whole. The air delivery duct 16 is provided with air outlets 20 at straight portions of the air outlet portion, and these air outlets 20 are distributed in the horizontal direction. Two connecting rods 18 are arranged on the mounting rack of the pre-shrinking component, air pipes 16 are distributed on each connecting rod 18, and the air pipes 16 at two positions are symmetrically distributed. The distance between adjacent air delivery conduits 16 in the direction of extension of the connecting rod 18 is greater than the maximum width of any cup body. The whole supporting plate is n-shaped, two ends of the supporting plate 17 are fixed on the connecting rod 18, and the supporting plate 17 is distributed on two sides of the gas pipe 16. The air outlets 20 on the air delivery pipe 16 are grouped and distributed at intervals on the air delivery pipe 16. The upper end of the middle part of the supporting plate 17 is provided with gaps distributed at intervals, and the air outlet 20 of the air pipe 16 faces the gaps on the supporting plate 17. The air outlets 20 of adjacent air delivery pipes 16 in the extending direction of the connecting rod 18 all face the same area, namely the pre-shrinking air passage on the pre-shrinking component. The preshrinking air passage is parallel to the combined cup conveying path and intersects with the circulating conveying path. The air outlet 20 is positioned at the top ends of two sides of the pre-shrinking air passage, the upper part of the supporting plate 17 protrudes out of the top of the pre-shrinking air passage to intersect with the cup connecting conveying path, when the cup body passes through the pre-shrinking air passage, the air outlet 20 is just aligned to the position, close to the cup opening, on the cup body, and the uncut cup connecting product is supported by the supporting plate 17.

The cold pressing part 3 is positioned above the pre-shrinking part and above the combined cup conveying path. In this way, the combined cup transport path is located between the cold pressing part 3 and the pre-shrinking part. The cold pressing component 3 comprises a lifting cylinder and a cooling plate 21, the cylinder body of the lifting cylinder is mounted on the supporting frame 19 of the mounting frame of the pre-shrinking component through a fixing plate, and the cylinder body of the lifting cylinder is connected with the cooling plate 21. The cooling plate 21 is provided with a water passage therein, which is capable of communicating with an external water supply line, thereby continuously supplying cooling water into the cooling plate 21.

The pyrocondensation stove is semi-enclosed construction, and it includes a bottom plate, two blocks of curb plates and sets up the air cock on bottom plate and curb plate, and on the curb plate PMKD and the curb plate be the state of position symmetric distribution on the bottom plate, all air cocks all face towards the middle zone of pyrocondensation stove. The middle area of the thermal shrinkage furnace is also positioned on the continuous cup conveying path, and the cup body is just positioned in the middle area of the thermal shrinkage furnace after being placed in the thermal shrinkage furnace. The air tap is communicated with an external air supply pipeline, so that water vapor can enter the thermal shrinkage furnace from the air tap.

After the sheet on the associated cup product production equipment is processed by the cup body sealing device, the cup body is filled with articles, the cup opening is covered with the cover film, and the sheet is in the state of the associated cup product which is not cut at the moment. On the label supply device, the labeling machine adds labels to the label carriers 2 on the circulating conveying path, and ensures that each shape-preserving unit 5 is loaded with one label. One side of the label paper is positioned at a limit opening on a pushing block 13 of a pushing piece 8 of the shape-preserving unit 5, a supporting part 14 provides supporting force for the label paper, a limit part 15 is positioned at the inner side of the label paper, and the limit part 15 is not in direct contact with the label paper at the moment; the shape keeping surface of the shape keeping piece 7 is connected with the inner side of the label paper, and the label paper is unfolded immediately to form a cylindrical tubular structure corresponding to the outline of the shape keeping surface. When the label carrier 2 is loaded with the label and enters the label outlet station from the label inlet station, the label carrier 2 stops moving, the pushing plate 4 on the label outlet part 1 is pushed to move upwards, and when the pushing plate 4 is contacted with the lifting rod 9 on the label carrier 2, the pushing member 8 on the shape keeping unit 5 can be driven. The pushing member 8 drives the label paper to move towards the direction of separating from the shape keeping surface, meanwhile, the cup body is already arranged right above the shape keeping unit 5, and the pushed label paper is pushed to the position of the cup body. When the label paper is separated from the shape-keeping surface, the limiting position 15 on the pushing block 13 immediately plays a role of keeping the shape of the label paper. The uncut continuous cup product stops moving after entering the pre-shrinking air channel of the pre-shrinking component, the supporting plate 17 in the pre-shrinking component is directly contacted with the uncut continuous cup product and provides supporting force for the uncut continuous cup product, and the output label paper in a rising state is arranged right below the cup body; the cooling plate 21 above the cup-in-cup conveying path descends and presses the uncut cup-in-cup product against the support plate 17 in the pre-shrinking section. During operation, the gas pipe 16 of the pre-shrinking component always conveys water vapor, and the gas outlet 20 always blows the water vapor towards the pre-shrinking gas passage. Because the air outlet 20 only faces the end of the cup body close to the cup mouth, the edge of the label paper close to the cup mouth is heated by the water vapor after the label paper is placed on the cup body, and a process of heating the local part of the label paper is formed. Then, the cooling plate 21 rises to the initial position, the ejector plate 4 descends to the initial position, the label carrier 2 moves on the circulating conveying path, the label carrier 2 with the label paper at the back enters a label discharging station, and the next label paper output is waited. The label paper moves along with the uncut continuous cup product after being locally heated and enters the heat-shrinkable furnace, and water vapor is uninterruptedly output from the heat-shrinkable furnace during the working period; when the cup body at the rear is sleeved with the label paper, the label paper in the heat shrinkage furnace is thoroughly heated to complete shrinkage, so that the label paper is attached to the cup body. Finally, the individual continuous cup products are formed through cutting.

Claims

1. A label carrier, its characterized in that: the label carrier (2) comprises a shape keeping unit (5) and a carrying plate (6), the shape keeping unit (5) comprises a shape keeping member (7), a pushing member (8), a jacking rod (9) and a return spring (10), the shape keeping member (7) is integrally of a columnar structure, the shape keeping member (7) is hollow, a shape keeping surface distributed around the central line of the shape keeping member (7) and sliding chutes (11) distributed around the central line of the shape keeping member (7) are arranged on the shape keeping member (7), the extending direction of the sliding chutes (11) is parallel to the central line of the shape keeping member (7), the sliding chutes (11) are communicated with the inside of the shape keeping member (7), the pushing member (8) is embedded in the sliding chutes (11) and protrudes out of the shape keeping surface, and the shape keeping member (7) is fixedly connected with the carrying plate (6), jacking rod (9) are with slip mode movable mounting on carrying thing board (6), the one end of jacking rod (9) is passed and is carried thing board (6) and be connected with propelling movement piece (8), reset spring (10) are installed on jacking rod (9), reset spring (10) one end and the other end of jacking rod (9) are connected, reset spring (10) the other end with carry thing board (6) and be connected.

2. The label paper supply device according to claim 1, wherein: the distance from one end of the shape keeping surface to the central line of the shape keeping piece (7) is gradually reduced in the direction away from the object carrying plate (6).

3. The label paper supply device according to claim 1, wherein: the carrying plate (6) is provided with at least four shape-preserving units (5).

4. The label paper supply device according to claim 1, wherein: be equipped with spacing mouthful on propelling movement spare (8), propelling movement spare (8) are equipped with supporting part (14) and spacing position (15) in spacing mouthful department, the extending direction that the orientation of supporting part (14) is on a parallel with spout (11), supporting part (14) protrusion is on the shape-preserving face, the extending direction of orientation perpendicular to spout (11) of spacing position (15), the maximum distance of the central line of spacing position (15) to shape-preserving unit (5) is less than the maximum distance of shape-preserving face to the central line of shape-preserving unit (5).