CN110421640B - Prefabricated cup - Google Patents
Prefabricated cup Download PDFInfo
- Publication number
- CN110421640B CN110421640B CN201910621692.4A CN201910621692A CN110421640B CN 110421640 B CN110421640 B CN 110421640B CN 201910621692 A CN201910621692 A CN 201910621692A CN 110421640 B CN110421640 B CN 110421640B
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- Prior art keywords
- cup
- edge
- connecting part
- decorative strip
- strip
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- 230000001154 acute effect Effects 0.000 claims description 5
- 238000005034 decoration Methods 0.000 abstract description 16
- 210000003813 thumb Anatomy 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 description 129
- 238000004080 punching Methods 0.000 description 19
- 238000010008 shearing Methods 0.000 description 13
- 238000003825 pressing Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 8
- 230000002146 bilateral effect Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000003856 thermoforming Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 230000036544 posture Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/22—Drinking vessels or saucers used for table service
- A47G19/2205—Drinking glasses or vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Making Paper Articles (AREA)
Abstract
The invention discloses a prefabricated cup which is provided with a cup edge, a cup body and a decoration strip, wherein the cup edge and the cup body are of an integrated structure, the cup body is in an inverted truncated cone shape, the decoration strip is arranged on the cup body in a curled state, the decoration strip comprises a body and two connecting parts, the body is in a fan ring shape, and the straight edge at one end of the body and the straight edge at the other end of the body are in mirror symmetry relative to the center line of the body. The local wall thickness of the prefabricated cup body can be increased by optimizing the decoration strip structure, the deformation problem caused by the fact that the prefabricated cup body is held by a hand and acted by a thumb is restrained, and the convenience of opening the prefabricated cup is improved. The optimal use experience of the consumer is achieved, and the image of the product in the consumer impression is improved.
Description
Technical Field
The invention relates to a prefabricated cup, in particular to a decoration strip structure on the prefabricated cup.
Background
The prefabricated cup is formed by heating and shaping plastic sheets, is of an integrated structure, and is provided with a cup body structure and a cup edge structure, wherein the cup edge is positioned at the upper part of the cup body and protrudes around the cup body, and the outer contour of the cup edge is the same as the shape of the cross section of the cup body and also different from the shape of the cross section of the cup body; the design purpose of the cup rim is to realize continuous conveying in the forming process, sealing after filling and carrying and packaging in the sales stage, and the design purpose of the cup body is to contain materials, main display parts of cup-shaped design and main display parts of packaging design, so that the whole appearance of the prefabricated cup is mainly constrained by the structure of the cup body. The cup body of the common prefabricated cup has a cylindrical structure, an inverted truncated cone-shaped structure, a cuboid structure with round corners and a spherical structure. In order to match with the sales of the prefabricated cup, a decoration strip is usually arranged on the cup body of the prefabricated cup, the decoration strip surrounds the cup body, and product information, enterprise information and other designs which are helpful for improving the appearance significance of the product are printed on the surface of the decoration strip. The structure formed by the integral curling of the decorative strip is completely matched with the surface structure of the cup body, and only then the decorative strip can be attached to the cup body, so that the decorative strip can display information and express the appearance characteristics of the cup body.
The cup body is in an inverted truncated cone-shaped structure, and the used decorative strip is curled in an inverted truncated cone shape, namely the curled decorative strip has a large upper width and a small lower width. The ornamental strip is spread and is presented as fan annular structure after spreading, and the ornamental strip is equipped with two convex limit and two straight flange, and two straight flange are located the tip of ornamental strip, and the one end and the other end of ornamental strip link up after the crimping for two straight flange zonulae occludens together.
In the prior art, the manufacturing and processing of the decorative strip curled in an inverted truncated cone-shaped structure needs to be subjected to slitting, trimming and sectioning. Firstly, cutting a sheet with a larger width to form a continuous sheet with a smaller width; cutting the edges of the continuous sheet with smaller width to form concave arc edges, convex arc edges and short straight edges, so as to form continuous sheet to be cut, wherein the continuous sheet to be cut is formed by alternately arranging fan-shaped annular parts and isosceles triangle parts; finally, by cutting the isosceles triangle part, a sector-shaped decorative strip is obtained from the continuous sheet to be cut, and the cut triangle part is discharged as waste. It is obvious that the amount of waste material and the amount of decorative strip should be consistent, and the utilization rate of the material for producing the decorative strip is low.
The cut decorative strip is pushed into a label feeding mold of the label rolling mechanism under the clamping and driving of a roller, and a storage cavity for storing the decorative strip is formed in the label feeding mold. After the decorative strip is cut, the decorative strip can only move by clamping and pushing by the roller. In order to ensure that the decorative strip can completely enter the storage cavity, not only the roller is arranged on the label feeding die, but also a cutter for cutting the isosceles triangle part is arranged on the label feeding die; and the roller and the cutter are close to the storage cavity so that the tail end of the decorative strip obtained by cutting can enter the storage cavity under the pushing action of the cutter. This results in a very complex structure for supplying the decorative strip.
Although the decorative strip is curled in the label feeding mold, the outer side of the decorative strip is limited by the label feeding mold, but the central line direction of the storage cavity is not limited, the curling state of the decorative strip is uncontrollable, and the curling states are not necessarily the same.
After the mark feeding mould is fully loaded with the decorative strip, the mark feeding mould moves to the upper part of the forming mould, the push rod stretches into the storage cavity, one end of the push rod is contacted with the decorative strip in a curled state, and the decorative strip is pushed to move to the position of the forming mould. Until the decorative strip is pushed into the cavity of the forming die and the decorative strip is extruded to fit in the cavity. Because the interior of the interior cavity of the decorative strip is tightly attached to the inner wall of the mark feeding mold, the thickness of the decorative strip is very thin, accidents can occur when the push rod pushes the decorative strip, the edge of the decorative strip is deformed under force and embedded in a gap between the push rod and the mark feeding mold, and the part of the decorative strip is not in a reasonable posture after being curled and is extruded and deformed by the push rod, and the printing information on the surface of the decorative strip is worn. The controllability of the curling supply process of the decorative strip is low, the curling success rate of the decorative strip is not high enough, and the production process of the prefabricated cup is finally influenced.
A forming die carrying the decorative strip is placed at a preform cup forming station, and the decorative strip and the preform cup are combined together while the preform cup is formed by extruding a plastic sheet which has been heated. The decorative strip is arranged on the prefabricated cup. The ornamental strip curls on the cup body, and the both ends of ornamental strip link up together, and the straight flange of one end of ornamental strip is close to the other end straight flange of ornamental strip. The thickness of each joint of the cup body and the decorative strip is the same.
Due to the specific thermoforming process of the prefabricated cup, the wall thickness of the cup rim of the prefabricated cup is larger than the wall thickness of the cup body. Although the decorative strip is arranged on the cup body, the thickness of the whole prefabricated cup at the cup body can be increased, but the pressure applied to the cup body by the thumb when the cup body is held by a hand in the operation of opening the prefabricated cup still cannot be resisted, and a small amount of deformation exists in most cases. The use experience of the product defect, which is inconvenient for the consumer, can impair the overall image of the product in the consumer impression, which is very unfavorable for the long-term business activities of enterprises.
Disclosure of Invention
The invention aims to solve the technical problem of how to increase the local wall thickness of a prefabricated cup at the cup body so as to obtain the prefabricated cup.
In order to solve the technical problems, the invention adopts the following technical scheme: the prefabricated cup is provided with a cup edge, a cup body and a decoration strip, wherein the cup edge and the cup body are of an integral structure, the cup body is in an inverted truncated cone shape, the decoration strip is arranged on the cup body in a curled state and comprises a body and two connecting parts, the body is in a fan shape, the straight edge at one end of the body and the straight edge at the other end of the body are in mirror symmetry relative to the central line of the body, one connecting part is positioned on the straight edge at one end of the body, the other connecting part is positioned on the straight edge at the other end of the body, the circle center of the arc edge at the side which is outwards protruded on the body is overlapped with the circle center of the arc edge at the side which is inwards recessed on the body, the radian of the arc edge of the convex side on the body is smaller than that of the arc edge of the concave side on the body, the tangent line of the arc edge of the convex side on the body at the end of the straight edge of the body and the tangent line of the arc edge of the concave side on the body at the end of the straight edge of the body, the contour of the edge of one end of the decorative strip in the width direction is the same as the contour of the edge of the other end of the decorative strip in the width direction, one end of the decorative strip covers and is connected with the connecting part of the other end of the body, the connecting part of one end of the decorative strip covers and is connected with the other end of the body, the straight edge of one end of the body is curled into an inverted truncated cone shape, and the straight edge of the other end of the body is connected with the straight edge of the other end of the body.
The thickness of the curled decorative strip on the cup body is the largest at the part where one end of the decorative strip body is overlapped with one connecting part and the other end of the decorative strip body is overlapped with the other connecting part, and the thickness is twice the thickness of the decorative strip; the thickness of the joint of the cup body and the overlapped part is larger than that of the joint of other cup bodies and the decorative strip, and the technical effect of increasing the local wall thickness of the cup body is formed on the whole of the prefabricated cup. This can suppress the problem of deformation when opening the preform cup.
The shape of the connecting part is required to meet two conditions that the shape of the connecting part is required to be satisfied, namely, the tangent line of the arc edge of the convex side on the body at the end of the straight edge of the body and the tangent line of the arc edge of the concave side on the body at the end of the straight edge of the body are required to be satisfied, the contour of the edge of one end of the decorative strip in the width direction is identical to the contour of the edge of the other end of the decorative strip in the width direction, the shape of the connecting part is optimally triangle, and the length of the edge on the connecting part for body connection is equal to the length of the straight edge of the body. The connection portions may be one of an obtuse triangle and the other of an acute triangle, or both of a right triangle. The triangle shape is convenient to cut and obtain, and the requirement on the cutting tool is low. Of course, other special-shaped structures can be obtained by cutting with the same blade, so long as two preconditions are ensured, for example, one connecting part is in a convex wavy shape, the other connecting part is in a concave saw-tooth shape, and the outlines of the two are the same.
The connecting parts are right triangle or oblique triangle, the extending direction of one side of one connecting part is parallel to the extending direction of one side of the other connecting part, the extending direction of the other side of one connecting part is coincident with the extending direction of the other side of the other connecting part, and the two connecting parts can be isosceles triangle after being combined.
When the connecting parts are in the shape of an oblique triangle, the best mode is that one connecting part is in the shape of an acute triangle and the other connecting part is in the shape of an obtuse triangle. Thus being convenient for cutting, improving the utilization rate of materials and reducing the generation of waste materials. The design space that the appearance of the prefabricated cup that uses this ornamental strip is showing is big for the ornamental strip is abundant on the prefabricated cup that the advantage of this scheme still lies in that two limit that the length of connecting portion is less are constructed at ornamental strip both ends profile pattern many, utilizes this profile to increase.
When the connecting part is a right triangle, the bevel edge of the connecting part is connected with the straight edge of the body, and the connecting part at one end of the body and the connecting part at the other end of the body are in mirror symmetry relative to the center line of the body. This is more convenient for cutting, and by implementing this structure, the same advantages of less waste generation and high material utilization are achieved.
And sealing the prefabricated cup by adopting a film coating mode after filling materials into the prefabricated cup, wherein a sealing film is combined on the cup edge. When the prefabricated cup is opened, the sealing film is only required to be torn. In order to facilitate tearing of the sealing film, the edge of the sealing film is provided with a film lifting bulge, the edge of the sealing film can be arranged according to the film lifting bulge, the sealing film is provided with a larger free part which is not combined with the cup edge at the film lifting bulge, and the free part is easy to pinch by fingers, so that the prefabricated cup can be conveniently opened. The state that the consumer holds the prefabricated cup is random, but as long as hold the prefabricated cup when thumb is in the aforesaid overlap position outside can obtain better condition of opening the prefabricated cup, for further strengthening can obtain the condition of opening, two straight flanges of body and play membrane arch all are located the same one side of cup body, and the biggest position of cup body thickness is close with sealing membrane atress tearing position, has improved the convenience of opening the prefabricated cup process from this.
The invention adopts the technical scheme that: the local wall thickness of the prefabricated cup body can be increased by optimizing the decoration strip structure, the deformation problem caused by the fact that the prefabricated cup body is held by a hand and acted by a thumb is restrained, and the convenience of opening the prefabricated cup is improved. The optimal use experience of the consumer is achieved, and the image of the product in the consumer impression is improved.
Drawings
The invention is further described below with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of a cutting device for producing a preform cup according to the present invention;
FIG. 2 is a perspective view of an upper die plate of a cutting device required for the production of a preform cup according to the present invention;
FIG. 3 is a front view of an upper die plate of a cutting device required for the production of a preform cup according to the present invention;
FIG. 4 is a perspective view of a lower die plate of a cutting device required for the production of a preform cup according to the present invention;
FIG. 5 is a schematic diagram showing the assembly of an upper die plate and a lower die plate of a cutting device required for producing a preform cup according to the present invention;
FIG. 6 is a schematic view of the use of a cutting device for the production of a preform cup according to the present invention;
FIG. 7 is a schematic view showing the structure of an elongated molding produced by a cutting device required for producing a preform cup according to the present invention;
FIG. 8 is a schematic diagram illustrating the use of an adsorption type label rolling mechanism for producing a preform cup according to the present invention;
fig. 9 is a schematic view showing the structure of a preform cup according to the present invention.
Detailed Description
The production of the prefabricated cup comprises the steps of producing the decoration strip, supplying the decoration strip and thermoforming the prefabricated cup, wherein the supply decoration strip directly serves the thermoforming link of the prefabricated cup.
The production raw materials of ornamental strip are the great decorative sheet of width of winding up on the roller, and decorative sheet is through cutting forming many rectangular form ornamental strip, and in order to match the hot fashioned technical requirement of prefabricated cup, the quantity of rectangular form ornamental strip is even.
As shown in fig. 1, 2, 3, 4, 5, the cutting operation is performed at a longitudinal cutting station. The cutting device for cutting is arranged in a longitudinal cutting station and comprises an upper template 1, a lower template 2, a driving component 3 and a frame. Four guide posts which are in parallel position relation with each other are arranged on the frame, the guide posts penetrate through the upper die plate 1, and the upper die plate 1 and the guide posts can be movably connected in a sliding mode. The lower template 2 is fixed on the frame; the driving component 3 is provided with a linear air cylinder, the cylinder body of the linear air cylinder is fixed on the frame, a piston rod of the linear air cylinder is connected with the upper template 1, the driving component 3 drives the upper template 1 to do linear reciprocating motion along the guide post, and the lower template 2 is positioned on the linear reciprocating motion path of the upper template 1.
The upper template 1 is provided with punching cutters which are all positioned on one side of the upper template 1 and all face to the position of the lower template 2. The lower die plate 2 is provided with a punching and shearing through hole 4 which is consistent with the outline of the punching and shearing cutter, and when the punching and shearing cutter is inserted into the punching and shearing through hole 4, a shearing process is formed between the punching and shearing through hole and the punching and shearing through hole, so that the decorative sheet can be subjected to die cutting operation.
The punching shear tool comprises a single-side cutting tool 5, a double-side cutting tool I6 and a double-side cutting tool II 7. The length of the single-side cutting tool 5 and the length of the double-side cutting tool II 7 are both larger than the length of the double-side cutting tool I6.
The upper template 1 is provided with two unilateral cutting tools 5, the bilateral cutting tool II 7 is positioned at the position right in the middle of the two unilateral cutting tools 5, and the distances from the bilateral cutting tool II 7 to any unilateral cutting tool 5 are the same. The double-sided cutting tools I6 are distributed between the double-sided cutting tools II 7 and the single-sided cutting tools 5 in an equidistant arrangement mode, and the distance between the single-sided cutting tools 5 and the double-sided cutting tools I6, the distance between adjacent double-sided cutting tools I6 and the distance between the double-sided cutting tools I6 and the double-sided cutting tools II 7 are the same; the two unilateral cutting tools 5 are in mirror symmetry relative to the central line of the bilateral cutting tool II 7; the double-sided cutting tool I6 positioned on one side of the double-sided cutting tool II 7 and the double-sided cutting tool I6 positioned on the other side of the double-sided cutting tool II 7 are in mirror symmetry relative to the center line positioned on the double-sided cutting tool II 7, and the number of the double-sided cutting tools I6 positioned on one side of the double-sided cutting tool II 7 is equal to the number of the double-sided cutting tools I6 positioned on the other side of the double-sided cutting tool II 7.
And a punching shear forming channel 8 is formed between the single-side cutting tool 5 and the double-side cutting tool I6, between adjacent double-side cutting tools I6 and between the double-side cutting tool I6 and the double-side cutting tool II 7.
One side of the unilateral cutting tool 5 is provided with an inward concave edge cutting edge, one side of the bilateral cutting tool I6 is provided with an inward concave edge cutting edge, the other side of the bilateral cutting tool I6 is provided with an outward convex edge cutting edge, and two sides of the bilateral cutting tool II 7 are provided with outward convex edge cutting edges. The inner concave edge cutting edge of the single-side cutting tool 5 has the same structure as the inner concave edge cutting edge of the double-side cutting tool I6, and the outer convex edge cutting edge of the double-side cutting tool I6 has the same structure as the outer convex edge cutting edge of the double-side cutting tool II 7; the inner concave edge cutting edge of the single-side cutting tool 5 is adjacent to the outer concave edge cutting edge of the double-side cutting tool I6, the inner concave edge cutting edge of the double-side cutting tool I6 is adjacent to the outer concave edge cutting edge of the double-side cutting tool II 7, and the inner concave edge cutting edge of one double-side cutting tool I6 in the adjacent double-side cutting tools I6 is adjacent to the outer concave edge cutting edge of the other double-side cutting tool I6. Therefore, the concave edge cutting edge and the convex edge cutting edge are both distributed on both sides of the punching shear forming channel 8. The concave edge cutting blade comprises an arc blade I9 and a straight blade I10, and one end of the arc blade I9 is connected with one end of the straight blade I10; the outer flange cutting blade comprises an arc blade II 11 and a straight blade II 12, and one end of the arc blade II 11 is connected with one end of the straight blade II 12. The straight line cutting edge I10 between any one concave edge cutting edge and the adjacent convex edge cutting edge is inclined to the straight line cutting edge II 12, the circle center of the arc cutting edge I9 coincides with the circle center of the arc cutting edge II 11, and the radian of the arc cutting edge I9 is larger than that of the arc cutting edge II 11.
The upper template 1 is provided with a pre-pressing plate 13. The pre-pressing plate 13 is slidably movably mounted on the upper die plate 1, and the pre-pressing plate 13 is located around the punching shear. A guide post and a reset spring are arranged between the pre-pressing plate 13 and the upper template 1, one end of the guide post is fixedly connected with the pre-pressing plate 13, the other end of the guide post penetrates through the upper template 1 and is provided with a nut, the upper template 1 is in sliding connection with the guide post, the reset spring is sleeved on the guide post, one end of the reset spring is connected with the pre-pressing plate 13, the other end of the reset spring is connected with the upper template 1, the reset spring is in a compressed state after installation, and the central line of the guide post is parallel to the linear reciprocating motion direction of the upper template 1, so that the sliding motion direction of the pre-pressing plate 13 relative to the upper template 1 is parallel to the linear reciprocating motion direction of the upper template 1.
In the initial state, the punching shear of the cutting device is far away from the lower die plate 2. Before cutting, firstly extending the decorative sheet out of a section in the conveying direction and extending the decorative sheet between the punching shear tool and the lower template 2 in a horizontal posture, and placing the decorative sheet on the lower template 2; when cutting is started, the punching and shearing tool moves to the position where the decorative sheet is located, the pre-pressing plate 13 contacts with the decorative sheet before the punching and shearing tool, and the pre-pressing plate 13 tightly presses the decorative sheet on the lower die plate 2; during cutting, the punching shear tool presses the decorative sheet, and the part of the decorative sheet, which is in close contact with the inner concave edge cutting edge and the outer convex edge cutting edge, is subjected to the action of shearing force; after cutting, the decorative sheet is formed with a contour corresponding to the concave edge cutting edge and the convex edge cutting edge, and the cut waste is discharged from the punching and shearing forming channel 8. Then the cutting device is restored to the original state, the sheet to be decorated is output along the same direction for a distance which is the length of the punching and shearing forming channel 8, and the decorative sheet can be cut into a plurality of strip-shaped decorative strips by repeating the cutting action, as shown in fig. 6.
As shown in fig. 7, the strip-shaped decorative strip is provided with a fan-shaped annular part 14 and an isosceles triangle part 15, the fan-shaped annular part 14 and the isosceles triangle part 15 are alternately arranged, the straight edge of the fan-shaped annular part 14 is connected with the waist of the isosceles triangle part 15, and the length of the straight edge of the fan-shaped annular part 14 is equal to the length of the waist of the isosceles triangle part 15. The bottom side of the isosceles triangle 15 is parallel to the conveying direction of the strip-shaped decorative strip.
In the decoration strip supplying stage, the strip-shaped decoration strip passes through a winding alignment station and then is input into a transverse cutoff cutting station.
A wire alignment member is provided at the wire alignment station, in which a reel is provided, the reel being arranged to form a conveying path for conveying the decorative strip, for example, a decorative strip supply method of publication CN106625863a published in chinese patent 2017, 5, 10 and a wire alignment member described in a die-cut member suitable for the method. The strip-shaped decorative strips are turned into vertical postures and then enter the winding alignment component, the number of the strip-shaped decorative strips is even, and the turning direction of half of the strip-shaped decorative strips is opposite to the turning direction of the other half of the strip-shaped decorative strips. The overturning operation can ensure that the printing information on the surface of the decorative strip can be exposed on the surface of the cup body.
The strip-shaped decorative strip enters a transverse cutoff and cutting station after passing through a winding alignment station, and a transverse cutting device is arranged on the transverse cutoff and cutting station, and can adopt the technical scheme of a label cutting device disclosed in Chinese patent 2016, 1 month and 20 days and disclosed in the publication No. CN105253685A, so that a cutting edge is positioned in a vertical plane. After the decorative strip is input into the transverse cutting device, the isosceles triangle part 15 of the long decorative strip is cut off by the transverse cutting device, and the cutting position is just positioned at the position of the high line of the isosceles triangle part 15. The strip-shaped decorative strip is cut in equal length to form a single-section decorative strip with an overall arch structure; the strip-shaped decorative strip performs stepping motion, and the length of each time the strip-shaped decorative strip enters the transverse cutting device is equal to the length of the decorative strip with the single section and the whole arched structure and is also equal to the length of the punching and shearing forming channel 8. Thanks to the coordination of the winding alignment components, the difference of the lengths of any two strip-shaped decorative strips between the longitudinal cutting station and the transverse cutoff cutting station is an integral multiple of the lengths of the decorative strips of the single-section integral arch structure, and the lengths are the same and different.
As shown in fig. 8, the single-section ornamental strip with an arch structure comprises a main body 16 and two connecting parts 17, wherein the main body 16 is in a fan shape, and the connecting parts 17 are in a right triangle shape; an isosceles triangle may be formed when the right-angle sides of the two connection parts 17 are butted. The straight edge at one end of the body 16 is mirror symmetrical with the straight edge at the other end of the body 16 relative to the center line of the body 16, the inclined edge of the connecting part 17 is connected with the straight edge at one end of the body 16, and the length of the inclined edge of the connecting part 17 is equal to the length of the straight edge at one end of the body 16; the connecting portion 17 at one end of the body 16 is mirror symmetrical with the connecting portion 17 at the other end of the body 16 with respect to the center line of the body 16. The extending direction of one right-angle side of one of the connection portions 17 is parallel to the extending direction of one right-angle side of the other connection portion 17, and the extending direction of the other right-angle side of one of the connection portions 17 coincides with the extending direction of the other right-angle side of the other connection portion 17. The center of the circular arc edge of the convex side on the body 16 coincides with the center of the circular arc edge of the concave side on the body 16, and the radian of the circular arc edge of the convex side on the body 16 is smaller than that of the circular arc edge of the concave side on the body 16. The convex side of the body 16 is machined from the outer convex edge cutting edge of the cutting device, and the concave side of the body 16 and the bottom edge of the connecting portion 17 are machined from the inner concave edge cutting edge of the cutting device. As shown in fig. 8, the edge of the connecting portion 17 is located between the tangent line of the convex side of the body 16 at the end where the straight edge of the body 16 is located and the tangent line of the concave side of the body 16 at the end where the straight edge of the body 16 is located. The right-angle side of the connecting portion 17 at one end of the body 16 is parallel to and the same length as the right-angle side of the connecting portion 17 at the other end of the body 16, so that the outline of the edge of one end of the decorative strip in the width direction is the same as the outline of the edge of the other end of the decorative strip in the width direction as a whole.
The decorative strip with a single section and an arch structure is obtained by cutting and input into the adsorption type label rolling mechanism, the adsorption type label rolling mechanism can adopt a technical scheme disclosed by Chinese patent 2015, 12, 16 and publication No. CN105151446A, and the die cavity of the forming die is arranged in a round table shape. When the decorative strip enters the adsorption type label rolling mechanism, the cylindrical label rolling mold core 18 sucks the decorative strip and winds the decorative strip, so that the decorative strip is curled around the side surface of the label rolling mold core 18 to form a structure that one end of the body 16 and the connecting part 17 of the end are covered on the other end of the body 16, and one end of the body 16 is covered on the connecting part 17 of the other end of the body 16, namely one end of the decorative strip is covered on the other end of the decorative strip. Then, the label mold core 18 stops rotating and the negative pressure disappears, the pushing component 19 in the adsorption label rolling mechanism pushes the curled decorative strip into the mold cavity of the forming mold, the curled decorative strip positioned in the mold cavity is extruded to be unfolded to form a round table shape, one end of the body 16 is covered on the connecting part 17 at the other end of the body 16, the connecting part 17 at one end of the body 16 is covered on the other end of the body 16, and the straight edges at one end of the body 16 are connected with the straight edges at the other end of the body 16, namely, the two straight edges are overlapped in the direction perpendicular to the center line of the mold cavity.
The forming die is placed at the thermoforming site and the plastic sheet is extruded within the forming die to ultimately form the preform cup. The prefabricated cup is provided with a cup rim, a cup body and a decorative strip, wherein the cup rim and the cup body are of an integral structure, the cup body is of an inverted truncated cone-shaped structure, the cup rim is positioned at the end with the largest width of the cup body and protrudes out of the surface of the cup body, the cup rim is of a circular ring-shaped structure as a whole and is provided with a film-lifting protrusion with a large width and extending in the radial direction, and the decorative strip is arranged on the cup body in a curled state; one end of the body 16 of the ornamental strip is covered on the connecting part 17 at the other end of the body 16 and is connected, the connecting part 17 at one end of the body 16 is covered on the other end of the body 16 and is connected to be curled into an inverted truncated cone shape, and the straight edge at one end of the body 16 is connected with the straight edge at the other end of the body 16, namely, the two straight edges are overlapped in the direction vertical to the center line of the cup body. As shown in fig. 9, one of the connection parts 17 is shielded by the body 16, and the other connection part 17 is located outside the body 16, so that the surface of the preform cup can see the decorative strip with two right-angle sides of the exposed connection part 17 located on the surface of the body 16. The two straight edges of the body 16 are located on the cup body at positions offset from the side of the cup body where the film raising protrusions are located.
The two straight edges of the body 16 and the film-forming protrusions may also be located on the same side of the cup body, thereby forming another embodiment.
In addition to the above embodiment, by adjusting the upper blade of the transverse cutting device to be inclined, the cut passes through the vertex angle of the isosceles triangle portion 15 during cutting, and a decorative strip with one connecting portion 17 in an acute triangle shape and the other connecting portion 17 in an obtuse triangle shape is obtained. The connecting part 17 of the ornamental strip which is arranged on the cup body and can be in an acute triangle shape is arranged outside, and the connecting part 17 which is in an obtuse triangle shape is also arranged outside, so that another embodiment is obtained.
Claims (6)
1. The utility model provides a prefabricated cup, this prefabricated cup is equipped with rim, cup body and ornamental strip, rim and cup body structure as an organic whole, the cup body is the round platform form of handstand, the ornamental strip sets up on the cup body with the crimp phase, its characterized in that: the decorative strip comprises a body (16) and two connecting parts (17), the body (16) is in a fan ring shape, the straight edge at one end of the body (16) and the straight edge at the other end of the body (16) are in mirror symmetry relative to the central line of the body (16), one connecting part (17) is positioned on the straight edge at one end of the body (16), the other connecting part (17) is positioned on the straight edge at the other end of the body (16), the circle center of the circular arc edge at the convex side on the body (16) coincides with the circle center of the circular arc edge at the concave side on the body (16), the radian of the circular arc edge at the convex side on the body (16) is smaller than the radian of the circular arc edge at the concave side on the body (16), the edge of the connecting part (17) is positioned between the tangent line of the convex side of the body (16) and the tangent line of the concave side of the body (16), the edge of one end of the decorative strip is the same as the edge of the other end of the decorative strip in the width direction, one end of the decorative strip (16) is covered on the connecting part (17) at the other end of the body (16) and connected, the connecting part (17) at one end of the body (16) is covered on the other end of the body (16) and connected, and the decorative strip is curled into an inverted circular table shape, the straight edge at one end of the body (16) is connected with the straight edge at the other end of the body (16).
2. The preformed cup of claim 1, wherein: the connecting part (17) is triangular, and the length of the side, used for connecting the body (16), of the connecting part (17) is equal to the length of the straight side of the body (16).
3. The preformed cup of claim 2, wherein: the extending direction of one side of one connecting part (17) is parallel to the extending direction of one side of the other connecting part (17), the extending direction of the other side of one connecting part (17) is overlapped with the extending direction of the other side of the other connecting part (17), and the two connecting parts (17) are in an isosceles triangle shape after being combined.
4. A preformed cup according to claim 3, wherein: one of the connecting parts (17) is in an acute triangle shape, and the other connecting part (17) is in an obtuse triangle shape.
5. A preformed cup according to claim 3, wherein: the connecting parts (17) are right triangles, the hypotenuses of the connecting parts (17) are connected with the straight sides of the body (16), and the connecting parts (17) at one end of the body (16) and the connecting parts (17) at the other end of the body (16) are mirror symmetry relative to the center line of the body (16).
6. The preformed cup of claim 1, wherein: the cup rim is provided with a film lifting bulge, and two straight edges of the body (16) and the film lifting bulge are positioned on the same side of the cup body.
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| CN201910621692.4A CN110421640B (en) | 2019-07-10 | 2019-07-10 | Prefabricated cup |
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| CN201910621692.4A CN110421640B (en) | 2019-07-10 | 2019-07-10 | Prefabricated cup |
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| CN110421640A CN110421640A (en) | 2019-11-08 |
| CN110421640B true CN110421640B (en) | 2024-03-19 |
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| CN210939653U (en) * | 2019-07-10 | 2020-07-07 | 杭州中亚机械股份有限公司 | Prefabricated cup |
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| CN101530881A (en) * | 2009-04-16 | 2009-09-16 | 上海交通大学 | Robot rolling hemming molding feature die covering a plurality of hemming methods |
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