Crimping and squaring system for paper cups and paper bowls

Abstract

According to the paper cup and paper bowl hemming and squaring system, the feeding and discharging rotary table module of a rotary tower structure is arranged, and the heating module, the hemming module and the flattening module are sequentially arranged in the rotary direction of the rotary table module in a matched mode; the heating module and the flattening module are sequentially matched with one another to heat, soften and pre-curl a cup opening; the arc-shaped pre-curled part is further guided, pressed and curled to form a circular-ring-shaped curled part at the curled edge module; the circular-ring-shaped curled part is flattened to form a square and round pressing and curled part at the flattening module; and action linkage synchronous matching is achieved through structural linkage between the mechanisms, so that the edge curling and flattening action matching degree is high, the forming effect is good, the overall structural layout is simpler and more compact, the equipment cost is low, the product forming quality is high, the production efficiency is high, and the paper cup and paper bowl edge curling and squaring machine is particularly suitable for automatic and assembly line type edge curling and squaring production of paper cups and paper bowls.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper cup and bowl rim processing, and particularly relates to a paper cup and bowl edge rolling and flattening system. BACKGROUND

[0002] Paper cups and bowls, as a kind of paper container, are safe and hygienic, light and convenient, and are widely used in the catering industry as disposable containers for food and drinks, greatly facilitating people's daily life. Paper cups and bowls usually have a rolled edge structure at the cup / bowl rim, which not only improves comfort and safety during food and drink contact, but also allows the food or drink to be sealed with a sealing film. Therefore, in addition to the formation of the main body of the paper cup and bowl, the cup / bowl rim also needs to be rolled during the production process.

[0003] Chinese patent CN202110004443.8 discloses a high-speed paper cup forming device and its preparation process. The conveying mechanism includes a conveying cylinder, a paper cup overturning structure, and a paper cup turntable. The cup bottom paper stamping and cutting mechanism is arranged below the paper cup turntable and includes a bottom paper sheet conveying structure, a bottom paper sheet cutting structure, and a bottom paper sheet stamping structure. The preparation process is as follows: the cut paper fan sheet is placed on the fan sheet holder, and then the fan sheet is transported, formed, and the formed paper cylinder is transported. The cup bottom paper is stamped, cut, and hot-pressed at the bottom of the fan-formed paper cylinder, and the cup rim is rolled.

[0004] Chinese patent CN201921189833.1 discloses a conical paper cup forming equipment, which includes a conical paper cup roll forming machine for rolling conical paper cups with paper, a conical paper cup edge rolling machine arranged on one side of the conical paper cup roll forming machine for curling the cup rim of the conical paper cup outward, and a conical paper cup bottom pressing machine arranged on one side of the conical paper cup edge rolling machine for sealing the conical end of the conical paper cup with the cup rim rolled. One side of the conical paper cup roll forming machine is provided with a conical paper cup cutting machine, and the conical paper cup cutting machine is provided with a continuous paper cutting and conveying device for cutting and continuously conveying the conical paper cup raw material paper to the conical paper cup roll forming machine.

[0005] However, the existing technical solutions are basically limited to the formation of the paper cup body and the cup rim rolling, and the edge rolling die is divided into two parts, which is complex in structure and difficult to control the synchronization of the action. The paper cup rim is not softened before being pressed to roll, which can easily cause the rim to be crushed and difficult to effectively form a perfect shape of the rolled edge. In addition, in order to meet the sealing requirement of the cup rim, the rolled edge is preferably flattened to increase the adhesive contact area of the sealing film. Therefore, the present application proposes a new paper cup and bowl edge rolling and flattening system. SUMMARY

[0006] The paper cup and bowl edge rolling and flattening system aims at solving the problems of the prior art, and comprises a feeding and discharging rotary table module, a heating module, an edge rolling module and a flattening module arranged in sequence along the rotary direction of the feeding and discharging rotary table module. During the process of the semi-finished paper cup flowing through the feeding and discharging rotary table module, the cup opening is heated and softened and pre-rolled at the heating module, the pre-rolled part is further guided and rolled into a circular edge rolling part at the edge rolling module, and the circular edge rolling part is flattened into a square circular rolling part at the flattening module. The structure linkage between mechanisms is realized to achieve synchronous cooperation, so that the edge rolling and flattening cooperation degree is high, the forming effect is good, the overall structure layout is simple and compact, the equipment cost is low, the product forming quality is high, and the production efficiency is high. The paper cup and bowl edge rolling and flattening system is especially suitable for automatic and assembly line type edge rolling and flattening production of paper cups and bowls.

[0007] To achieve the above object, the present application provides the following technical scheme:

[0008] The paper cup and bowl edge rolling and flattening system comprises a feeding and discharging rotary table module arranged in rotation, and a heating module, an edge rolling module and a flattening module arranged in sequence along the rotary direction of the feeding and discharging rotary table module. The feeding and discharging rotary table module comprises a plurality of loading mechanisms arranged along the circumference. During the process of the semi-finished paper cup flowing through the loading mechanisms, the cup opening is heated and softened and pre-rolled at the heating module to form a circular arc pre-rolled part and obtain a pre-rolled edge paper cup, the pre-rolled part is guided and rolled into a circular edge rolling part at the edge rolling module and obtains an edge rolling paper cup, and the edge rolling part is flattened into a square circular rolling part at the flattening module and obtains a finished paper cup.

[0009] Preferably, the feeding and discharging rotary table module comprises a rotary mechanism mounted on a rack and a plurality of loading mechanisms arranged along the circumference of the rotary mechanism. A motor drives the rotary mechanism to rotate and drives each loading mechanism to switch stations.

[0010] Preferably, the loading mechanism comprises a paper cup sleeve matched with the shape of the paper cup, and the paper cup is horizontally sleeved and loaded in the paper cup sleeve. A blowing and suction device is further connected between the rotary driving mechanism and the loading mechanism. According to the need, the paper cup loaded on the loading mechanism is pushed and fed to the heating module, the edge rolling module or the flattening module by blowing, and is stably loaded after processing at the corresponding station by suction, so as to avoid falling during rotary feeding.

[0011] Preferably, the blowing and suction device comprises an air path connected between the rotary driving mechanism and the paper cup sleeve, and an external air pump structure that supplies air or sucks air into the air path. The paper cup is sealingly sleeved in the paper cup sleeve, and the blowing and suction device blows or sucks air from the bottom of the cup.

[0012] As a preferred, the heating module comprises a pre-rolling driving mechanism mounted on the heating base, and a heating mechanism, the pre-rolling mechanism is connected to the pre-rolling driving mechanism, the pre-rolling mechanism is driven by the pre-rolling driving mechanism to move reciprocatingly relative to the feeding turntable module, the loading mechanism is arranged opposite to the pre-rolling mechanism through the rotating action, and the semi-finished paper cup on the loading mechanism is sleeved with the cup opening on the pre-rolling mechanism, after the heating mechanism heats and softens the cup opening of the semi-finished paper cup, the pre-rolling mechanism moves towards the loading mechanism to guide the cup opening edge to curl outward to form the pre-rolling part.

[0013] As a preferred, the pre-rolling mechanism comprises a pre-rolling sleeve joint part, the front side of the pre-rolling sleeve joint part is provided with an annular pre-rolling sleeve joint part, the semi-finished paper cup is sleeved on the pre-rolling sleeve joint part, and the pre-rolling sleeve joint part is provided with a circular-arc-shaped pre-rolling edge groove at the terminal, the cup opening of the semi-finished paper cup is abutted against the edge of the pre-rolling edge groove, and the cup opening is gradually curled outward under the guidance of the shape of the pre-rolling edge groove when the two move relative to each other.

[0014] As a preferred, the inner circle of the pre-rolling sleeve joint part is provided with a supporting ring wall matched for guiding and supporting the inner wall of the cup opening of the semi-finished paper cup, the supporting ring wall is connected with the inner diameter edge of the pre-rolling edge groove, and the two cooperate to guide the curling of the cup opening.

[0015] As a preferred, the pre-rolling mechanism further comprises a heating part, the heating part is covered outside the pre-rolling sleeve joint part from the rear side, and a heating cavity communicating with the heating mechanism is formed between the pre-rolling sleeve joint part and the heating part, air holes are arranged on the outer circle of the pre-rolling sleeve joint part matched with the position distribution of the pre-rolling sleeve joint part, hot air is conveyed from the heating mechanism and output through the heating cavity and the air holes to heat the cup opening of the semi-finished paper cup in the pre-rolling sleeve joint part; the heating mechanism is arranged in communication with the pre-rolling mechanism, and comprises an air flow channel directly communicating with the heating cavity and an air pump connected with the air flow channel.

[0016] As a preferred, the heating part comprises a heating cover with an outer diameter slightly larger than the outer diameter of the pre-rolling sleeve joint part, the front end of the heating cover is sealingly connected with the front end of the pre-rolling sleeve joint part, and the rearwardly extending parts of the two form a first part of the annular heating cavity, the heating part further comprises a butt joint cover, the butt joint cover is arranged in communication between the rear end of the heating cover and the output end of the heating mechanism, and the butt joint cover is hollow to form a second part of the heating cavity.

[0017] As preferred, the crimping module comprises a first crimping driving mechanism and a second crimping driving mechanism mounted on the crimping base, and further comprises a crimping mechanism, the crimping mechanism comprises a crimping connecting sleeve, a first crimping module mounted on the front end of the crimping connecting sleeve, and a second crimping module slidingly sleeved in the crimping connecting sleeve, the crimping connecting sleeve is mounted on the first crimping driving mechanism and driven by the first crimping driving mechanism to perform reciprocating translational movement relative to the feeding and discharging rotary table module, the rear end of the second crimping module is connected with the second crimping driving mechanism and driven by the second crimping driving mechanism to perform reciprocating translational movement relative to the crimping connecting sleeve, the loading mechanism is arranged opposite to the crimping mechanism through rotary movement, the crimping mechanism translates towards the loading mechanism to make the pre-crimped paper cup with its cup opening sleeved on the second crimping module, and the first crimping module and the second crimping module are linked to make the pre-crimped part of the cup opening edge into a crimping part.

[0018] As preferred, the second crimping module comprises a crimping sleeve joint part and a crimping sleeve joint shaft part, the crimping sleeve joint shaft part is slidingly sleeved in the crimping connecting sleeve, and the shaft front end thereof is connected with the crimping sleeve joint part, the front end of the crimping sleeve joint part is provided with a crimping sleeve joint head matched with the inner ring shape of the cup opening of the pre-crimped paper cup, the terminal outer ring of the crimping sleeve joint head is provided with a circular arc-shaped second crimping groove, the pre-crimped paper cup is sleeved on the crimping sleeve joint head and the pre-crimped part thereof is arranged in the second crimping groove; the first crimping module is provided with a first crimping groove matched with the second crimping groove, the first crimping module is composed of a plurality of first crimping modules arranged in a circumferential array and dividing the first crimping groove into a plurality of circular arc segments, the first crimping modules are hingedly connected with the second crimping module, and when the second crimping module performs reciprocating translational movement, it drives each of the first crimping modules to synchronously rotate outward to open to make room for pre-crimped paper cup feeding or synchronously rotate inward to close to extrude and form the crimping part in cooperation with the second crimping groove.

[0019] As preferred, the first crimping module comprises a crimping connecting rod part and a crimping claw head part, the two ends of the crimping connecting rod part are respectively hingedly connected with the crimping connecting sleeve and the crimping claw head part, the second crimping module further comprises a crimping hinge part located at the rear side of the crimping sleeve joint part, the end part of the crimping claw head part is hingedly connected with the crimping connecting rod part, and the middle part thereof is hingedly connected with the crimping hinge part, when the second crimping module translates towards the loading mechanism, it drives each of the crimping claw head parts to rotate forward around the hinge point A between the crimping connecting rod part and the crimping claw head part, at this time, the first crimping groove is separated from the second crimping groove, when the second crimping module translates away from the loading mechanism, it drives each of the crimping claw head parts to rotate backward around the hinge point A, at this time, the first crimping groove is opposite to the second crimping groove to close to splice into a circular ring groove matched with the shape of the crimping part.

[0020] As preferred, the sleeve joint shaft part of the sleeve joint part extends out of the sleeve joint sleeve and is connected with the sleeve joint part and the sleeve hinge part, and the rear end of the shaft part extends out of the sleeve joint sleeve and is connected with the second sleeve driving mechanism.

[0021] As preferred, the front part of the sleeve hinge part matches a plurality of hinge joints in the circumferential array of the first sleeve die module groups, and each of the sleeve claw head parts is hingedly connected with a corresponding hinge joint.

[0022] As preferred, the first sleeve die module is provided with six groups, and the hinge joints are correspondingly provided with six groups.

[0023] As preferred, the flattening module comprises a first flattening driving mechanism and a second flattening driving mechanism mounted on a flattening base, and further comprises a flattening mechanism, which comprises a flattening connecting sleeve, a first flattening module mounted on the flattening connecting sleeve, and a second flattening module slidingly sleeved in the flattening connecting sleeve. The flattening connecting sleeve is mounted on the first flattening driving mechanism and is driven by the first flattening driving mechanism to perform a reciprocating flat movement relative to the feeding and discharging turntable module. The rear end of the second flattening module is connected with the second flattening driving mechanism and is driven by the second flattening driving mechanism to perform a reciprocating flat movement relative to the flattening connecting sleeve. The material carrying mechanism is arranged opposite to the flattening mechanism through a rotary movement. The flattening mechanism moves towards the material carrying mechanism to make the sleeve joint part of the sleeve joint paper cup sleeved on the second flattening module. The first flattening module and the second flattening module are linked and matched to flatten the sleeve joint part of the cup opening edge into a crimped part.

[0024] As preferred, the second flattening module comprises a flattening sleeve joint part and a flattening sleeve joint shaft part. The flattening sleeve joint shaft part is slidingly sleeved in the flattening connecting sleeve, and the front end of the flattening sleeve joint shaft part is connected with the flattening sleeve joint part. The front end of the flattening sleeve joint part has a flattening sleeve joint head matching the shape of the inner circle of the cup opening of the sleeve joint paper cup. A flat second flattening annular surface is arranged around the terminal outer circle of the flattening sleeve joint head. The sleeve joint paper cup is sleeved on the flattening sleeve joint head, and the sleeve joint part of the sleeve joint paper cup abuts against the second flattening annular surface. The first flattening module has a first flattening annular surface matching the second flattening annular surface. The first flattening module is composed of a plurality of first flattening module groups arranged in a circumferential array and dividing the first flattening annular surface into a plurality of circular arc segments. The rear end of the first flattening module group is hingedly connected with the flattening connecting sleeve. A flattening abutting part abutting against the flattening sleeve joint shaft part is protrudingly arranged on one side of the middle part of the first flattening module group opposite to the flattening sleeve joint shaft part. A flattening elastic member is arranged between the other side of the middle part of the first flattening module group away from the flattening sleeve joint shaft part and the flattening connecting sleeve. The part of the flattening sleeve joint shaft part abutting against the flattening abutting part is a flattening variable diameter part with a gradually decreasing diameter from front to rear. When the second flattening module performs a reciprocating flat movement, each first flattening module group is driven to synchronously rotate outward to open or synchronously rotate inward to close to cooperate with the second flattening annular surface to flatten the sleeve joint part into a crimped part.

[0025] Preferably, four groups of the first flattening modules are provided.

[0026] Preferably, the first flattening module includes a flattening connecting rod portion and a flattening claw head portion, the rear end of the flattening connecting rod portion is hinged to the flattening connecting sleeve, and the front end is connected to the flattening claw head portion, and the flattening resistance portion and the flattening elastic member are both arranged on the flattening connecting rod portion; when the second flattening module is translated toward the loading mechanism, the flattening resistance portion slides to the small diameter section of the flattening reducing portion, thereby each first flattening module is retracted and spliced ​​inwardly so that the first flattening annular surface is directly matched with the second flattening annular surface; when the second flattening module is translated away from the loading mechanism, the flattening resistance portion slides to the large diameter section of the flattening reducing portion, thereby each first flattening module is opened and separated outwardly so that the first flattening annular surface is separated from the second flattening annular surface.

[0027] Preferably, the front end of the flattening sleeve shaft extends out of the flattening connecting sleeve and is connected to the flattening sleeve, and the rear end of the shaft extends out of the flattening connecting sleeve and is connected to the second flattening drive mechanism.

[0028] Preferably, the pre-rolling drive mechanism, the first curling drive mechanism and the first flattening drive mechanism all include a sliding part, which is slidably installed on the corresponding base and slides linearly relative to the loading and unloading turntable module. The pre-rolling mechanism, the curling connecting sleeve and the flattening connecting sleeve are correspondingly installed on the sliding part, and also include a first drive component, which drives the sliding part to slide.

[0029] Preferably, the first drive assembly is configured as a cam drive structure, which includes a first drive shaft vertically mounted on a base, the bottom input end of the first drive shaft is connected to an external power source to obtain rotational power, and the top output end is connected to a cam portion, the top surface of the cam portion is concavely provided with an annular cam groove, and the sliding portion includes a protrusion limited in the cam groove, and as the cam portion rotates, the protrusion is guided by the trajectory of the cam groove to move back and forth.

[0030] Preferably, the cam groove is eccentrically arranged relative to the cam portion and has a symmetrical structure, which includes a first retaining segment and a second retaining segment that are relatively arranged and have a larger and smaller radius, and also includes two relatively arranged reducing segments, and a reducing segment is connected between the first retaining segment and the second retaining segment. When the cam portion rotates to the point where its first retaining segment or the second retaining segment cooperates with the protrusion, the sliding portion remains stationary, and when the cam portion rotates to the point where its reducing segment cooperates with the protrusion, it guides and drives the sliding portion to slide linearly.

[0031] As preferred, a linear guide rail is arranged in the corresponding base, and the bottom of the sliding part is provided with a sliding block slidingly mounted on the linear guide rail.

[0032] As preferred, the second edge rolling driving mechanism and the second flattening driving mechanism each comprise a second driving part mounted on a corresponding base, the rotating driving end of the second driving part is eccentrically connected with an output shaft part, and a driving connecting part is further arranged, the top surface of the driving connecting part is provided with a limiting groove, the shaft end of the output shaft part is limitedly arranged in the limiting groove, the width dimension of the limiting groove along the front-rear direction is matched with the size of the output shaft part, and the driving connecting part is moved back and forth by the output shaft part when the second driving part rotates, and the driving connecting part is connected with the second edge rolling module and the second flattening module.

[0033] As preferred, the second driving part is a rotary motor.

[0034] As preferred, the length dimension of the limiting groove along the left-right direction is greater than the size of the output shaft part to allow the eccentric rotation of the output shaft part.

[0035] The present application has the following advantages:

[0036] (1) The present application is provided with the feeding and discharging rotary table module of the rotary tower structure, and the heating module, the edge rolling module and the flattening module are sequentially arranged along the rotation direction of the rotary table module, and the semi-finished paper cup is sequentially matched with the heating module for cup mouth heating softening and pre-edge rolling, the circular arc pre-rolling part is further guided to be rolled into a circular edge rolling part at the edge rolling module, and the circular edge rolling part is flattened into a square circular flattening part at the flattening module, and the structure linkage between mechanisms is realized to realize action linkage and synchronous cooperation, so that the edge rolling and flattening action cooperation degree is high, the molding effect is good, the overall structure layout is more simple and compact, the equipment cost is low, the product molding quality is high, and the production efficiency is high, and the present application is especially suitable for paper cup and paper bowl automatic and assembly line type edge rolling and flattening production.

[0037] (2) The present application is provided with the pre-rolling mechanism and the heating mechanism, and the semi-finished paper cup is matched with the pre-rolling mechanism, the cup mouth is heated and softened by the heating mechanism, and then the pre-rolling mechanism is translated towards the material carrying mechanism to make the cup mouth edge curl outward to form a pre-rolling part, the paper cup cup mouth and the pre-rolling mechanism have good cooperation degree, and the pre-heating by the independently arranged heating mechanism ensures effective softening and subsequent edge rolling effect.

[0038] (3) The pre-rolling mechanism in the application is provided with an annular pre-rolling sleeve interface on the pre-rolling sleeve joint, and a circular-arc pre-rolling edge groove is arranged at the terminal of the pre-rolling sleeve interface to guide the outward curling of the cup opening. The cup opening and the pre-rolling mechanism sleeve joint are stable and have high matching degree, which ensures the stable and effective completion of the edge curling action. In combination with the auxiliary support of the inner ring support wall of the pre-rolling sleeve interface, the softening cup opening is effectively prevented from collapsing to produce defective products, so that the cup opening edge curling forming is smoothly completed and the edge curling quality is ensured. The independent heating mechanism is provided to fully ensure the softening effect, and the cup wall that needs to be curled at the cup opening can be fully and effectively heated in a targeted manner, covering a small and appropriate heating range. In combination with the pre-rolling edge groove, the pre-rolling part is quickly and accurately formed, effectively ensuring the subsequent edge curling success rate.

[0039] (4) The edge curling mechanism is arranged opposite to the material loading mechanism, and the first edge curling driving mechanism is arranged to drive the whole edge curling mechanism to move in combination with the material loading mechanism to complete the feeding and discharging of the paper cup. The second edge curling driving mechanism is arranged to drive the second edge curling module of the edge curling mechanism to move, and the linkage between the first edge curling module and the second edge curling module is utilized to make the pre-rolling part of the cup opening edge into a curling part. The flattening mechanism is arranged opposite to the material loading mechanism, and the first flattening driving mechanism is arranged to drive the whole flattening mechanism to move in combination with the material loading mechanism to complete the feeding and discharging of the paper cup. The second flattening driving mechanism is arranged to drive the second flattening module of the flattening mechanism to move, and the linkage between the first flattening module and the second flattening module is utilized to make the curling part of the cup opening edge into a flattened curling part. The action is reliable and efficient, and the feeding and discharging of the paper cup is well matched with the curling and flattening operation, and the curling and flattening effect is good.

[0040] (5) The edge curling mechanism is provided with a semicircular-arc second edge curling groove arranged on the outer ring of the terminal of the sleeve joint of the second edge curling module, and a semicircular-arc first edge curling groove is arranged on the first edge curling module. The two edge curling grooves are spliced and folded to extrude and form the pre-rolling part in the second edge curling groove into a curling part. The first edge curling module is composed of a plurality of circumferentially arrayed first edge curling modules, and each first edge curling module is hingedly connected to the second edge curling module to realize linkage opening and folding. The structure is ingenious, which not only solves the feeding problem of the paper cup to be processed, but also enables the complete pre-rolling part to be simultaneously extruded and curled during curling, realizing efficient and rapid completion of the curling operation.

[0041] (6) The flattening mechanism in the application sets a planar second flattening ring surface around the outer circle of the sleeve joint terminal of the second flattening module, sets a first flattening ring surface on the first flattening module, and the two flattening ring surfaces are spliced and folded to flatten the curled edge part pre-positioned in the second flattening ring surface into a curled part, the first flattening module is composed of a plurality of circumferential array first flattening modules, the first flattening module hinged on the connecting sleeve elastically contacts the variable diameter part of the sleeve joint shaft part in the second flattening module to realize linkage opening and folding, the structure is ingenious, not only solves the feeding problem of the paper cup to be processed, but also enables the curled edge part of a complete circle to be flattened at the same time, and the flattening operation is efficiently and quickly completed.

[0042] In summary, the paper cup and paper bowl curled edge flattening system has the advantages of high mechanism action coordination, good forming effect, simple and compact overall structure layout, low equipment cost, high product forming quality and high production efficiency, and is especially suitable for automatic and assembly line type curled edge flattening production of paper cups and paper bowls. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the application;

[0044] Figure 2 It is a process state diagram of the processed semi-finished paper cup of the application;

[0045] Figure 3 It is a schematic diagram of the structure of the loading mechanism in the application;

[0046] Figure 4 It is a schematic diagram of the structure of the heating module in the application;

[0047] Figure 5 It is a sectional view of Figure 4 ;

[0048] Figure 6 It is an enlarged view of Figure 5 A in the application;

[0049] Figure 7 It is an enlarged view of Figure 6 B in the application;

[0050] Figure 8 It is a front view of the cooperation structure of the curled edge module and the loading mechanism in the application;

[0051] Figure 9 It is a schematic diagram of the structure of the curled edge module in the application;

[0052] Figure 10 It is a connection sectional view of the curled edge mechanism and the second curled edge driving mechanism in the application;

[0053] Figure 11Schematic diagram of the connection between the curling mechanism and the second curling drive mechanism in the present invention;

[0054] Figure 12 Schematic diagram of the connection between the second curling module and the driving connection part in the present invention;

[0055] Figure 13 Schematic diagram of the structure of the first curling module in the present invention;

[0056] Figure 14 Schematic diagram of the cooperation between the first curling module and the second curling module in the present invention;

[0057] Figure 15 It is a structural cross-sectional view of the crimping mechanism of the present invention;

[0058] Figure 16 for Figure 15 Enlarged view of point C in the middle;

[0059] Figure 17 for Figure 16 Enlarged view of point D in the middle;

[0060] Figure 18 Schematic diagram of the structure of the flattening module in the present invention;

[0061] Figure 19 Schematic diagram of the connection between the flattening mechanism and the second flattening drive mechanism in the present invention;

[0062] Figure 20 Schematic diagram of the connection between the flattening mechanism and the driving connection part in the present invention;

[0063] Figure 21 Schematic diagram of the cooperation between the first flattening module and the second flattening module in the present invention;

[0064] Figure 22 Schematic diagram of the coordination of two sets of first flattening modules in the present invention;

[0065] Figure 23 for Figure 20 Axial cross-sectional view of

[0066] Figure 24 for Figure 23 Enlarged view of point E in the middle;

[0067] Figure 25 for Figure 24 Enlarged view of point F in the middle;

[0068] Figure 26 It is a structural cross-sectional view of the pre-rolling drive mechanism and the first curling / flattening drive mechanism in the present invention;

[0069] Figure 27 It is a structural front view of the cam groove in the present invention. DETAILED DESCRIPTION

[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0071] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0073] Example 1

[0074] like Figures 1-2 As shown, a paper cup and paper bowl curling and squaring system includes a rotating loading and unloading turntable module 10 and a heating module 20, a curling module 30 and a flattening module 40 arranged in sequence on the periphery of the loading and unloading turntable module 10 along the rotation direction of the loading and unloading turntable module 10. The loading and unloading turntable module 10 includes a plurality of loading mechanisms 1 arranged along the circumference. During the circulation of a semi-finished paper cup 101 loaded on the loading mechanism 1, the heating module 20 is sequentially cooperated to heat and soften the cup mouth and pre-curl the edge to form an arc-shaped pre-curled portion 111 to obtain a pre-curled paper cup 102, the pre-curled portion 111 is guided and rolled into a circular curling portion 112 at the curling module 30 to obtain a curled paper cup 103, and the curling portion 112 is flattened into a square and circular curling portion 113 at the flattening module 40 to obtain a finished paper cup 104.

[0075] In the embodiment, the upper and lower feeding rotary table module 10 is arranged in the rotary tower structure, and the heating module 20, the edge rolling module 30 and the flattening module 40 are arranged in sequence along the rotary direction of the rotary table module. In the process of the semi-finished paper cup flowing through the upper and lower feeding rotary table module 10, the cup opening is heated and softened and pre-rolled in the heating module 20, the circular arc pre-rolled part 111 is further guided to be pressed and rolled into a circular edge rolling part 112 in the edge rolling module 30, and the circular edge rolling part 112 is pressed and formed into a square circular pressed and rolled part 113 in the flattening module 40. The linkage between the mechanisms realizes the linkage and synchronous cooperation of the actions, and realizes the efficient continuous production.

[0076] As preferred, as shown in Figure 1 The upper and lower feeding rotary table module 10 includes a rotary mechanism 9 mounted on a rack and a plurality of material carrying mechanisms 1 arranged along the circumference of the rotary mechanism 9. The motor drives the rotary mechanism 9 to rotate and drives each material carrying mechanism 1 to switch the station.

[0077] As preferred, as shown in Figure 3 The material carrying mechanism 1 includes a paper cup sleeve 11 matched with the shape of the paper cup, and the paper cup is horizontally sleeved and loaded in the paper cup sleeve 11. A blowing and suction device is further arranged in communication between the rotary driving mechanism 9 and the material carrying mechanism 1. According to the need, the paper cup loaded on the material carrying mechanism 1 is pushed and fed to the heating module 20, the edge rolling module 30 or the flattening module 40 by blowing, and is stably loaded after the processing in the corresponding station is completed, so as to avoid falling during the rotary feeding process.

[0078] As preferred, the blowing and suction device includes an air path arranged in communication between the rotary driving mechanism 9 and the paper cup sleeve 11 and an external air pump structure for air supply or air suction in the air path. The paper cup is sealingly sleeved in the paper cup sleeve 11, and the blowing and suction device blows or sucks air from the bottom of the cup.

[0079] Embodiment two

[0080] The same or corresponding parts in the embodiment and the above-mentioned embodiments use the corresponding reference numerals in the above-mentioned embodiments. For the sake of simplicity, only the difference points from the above-mentioned embodiments are described below. The difference between the embodiment and the above-mentioned embodiments is that:

[0081] As preferred, as shown in Figure 4As shown, the heating module 20 comprises a pre-rolling driving mechanism 2 mounted on a heating base 201, and a heating mechanism 3, the pre-rolling driving mechanism 2 is connected with a pre-rolling mechanism 4, the pre-rolling mechanism 4 is driven by the pre-rolling driving mechanism 2 to move back and forth relative to the feeding and discharging rotary table module 10, the loading mechanism 1 is arranged opposite to the pre-rolling mechanism 4 through rotary movement, and the semi-finished paper cup 101 on the loading mechanism 1 is sleeved on the pre-rolling mechanism 4 through the cup opening, after the heating mechanism 3 heats and softens the cup opening of the semi-finished paper cup 101, the pre-rolling mechanism 4 moves towards the loading mechanism 1 to guide the cup opening edge to curl outward to form the pre-rolling part 111.

[0082] It should be noted that, as Figure 2 shown, the cup opening of the semi-finished paper cup 101 is cylindrical, and the purpose of the heating module 20 is to make the cup opening edge of the semi-finished paper cup 101 curl outward to form a pre-rolling edge.

[0083] As preferred, as Figures 5-7 shown, the pre-rolling mechanism 4 comprises a pre-rolling sleeve joint part 41, the front side of the pre-rolling sleeve joint part 41 has an annular pre-rolling sleeve joint part 411, the semi-finished paper cup 101 is sleeved on the pre-rolling sleeve joint part 411, and the pre-rolling sleeve joint part 411 has a circular-arc-shaped pre-rolling edge groove 412 at the terminal end, the cup opening of the semi-finished paper cup 101 abuts against the edge of the pre-rolling edge groove 412, and the cup opening gradually curls outward under the shape guidance of the pre-rolling edge groove 412 when the two move relative to each other.

[0084] In this embodiment, the front side of the pre-rolling sleeve joint part 41 is provided with an annular pre-rolling sleeve joint part 411, the semi-finished paper cup 101 is sleeved on the pre-rolling sleeve joint part 411, and a circular-arc-shaped pre-rolling edge groove 412 is arranged at the terminal end of the pre-rolling sleeve joint part 411, the cup opening curls outward under the shape guidance of the pre-rolling edge groove 412, and in this structure, the sleeve joint cooperation between the cup opening and the pre-rolling mechanism 4 is stable, the cooperation degree is high, and the rolling edge movement is stably and effectively completed.

[0085] As preferred, as Figure 7 shown, the inner circle of the pre-rolling sleeve joint part 411 is matched with a supporting ring wall 413 for guiding and supporting the inner wall of the cup opening of the semi-finished paper cup 101, the supporting ring wall 413 is connected with the inner diameter edge of the pre-rolling edge groove 412, and the two cooperate to guide the cup opening to curl.

[0086] It is worth mentioning that further in the inner circle of the pre-rolling sleeve interface 411 is matched with a supporting ring wall 413, the inner wall of the cup mouth is supported by the supporting ring wall 413, and through the butt joint of the supporting ring wall 413 and the inner edge of the pre-rolling groove 412, the softened cup mouth can be effectively prevented from collapsing to produce defective products during the relative movement of the rolling operation, so that the cup mouth rolling forming is successfully completed and the rolling quality is guaranteed.

[0087] As preferred, as shown in Figure 6 The pre-rolling mechanism 4 further comprises a heating part 42, which is arranged outside the pre-rolling sleeve part 41 from the rear side cover and forms a heating cavity 420 communicated with the heating mechanism 3 between them, and the outer circle of the pre-rolling sleeve part 41 is matched with the position distribution of the pre-rolling sleeve interface 411, and the air holes 414 are arranged, hot air is conveyed from the heating mechanism 3 and output through the heating cavity 420 and the air holes 414 to heat the cup mouth of the semi-finished paper cup 101 in the pre-rolling sleeve interface 411; the heating mechanism 3 is communicated with the pre-rolling mechanism 4, which comprises an air flow channel 31 directly communicated with the heating cavity 420 and an air pump connected with the air flow channel 31.

[0088] The embodiment can preheat the cup mouth by the heating mechanism 3 and then perform relative translation rolling operation, which can fully guarantee the softening effect and further guarantee the success rate of rolling. In addition, the outer side of the cup mouth is heated by blowing hot air during heating, which realizes the rapid and accurate forming of the pre-rolling part in cooperation with the pre-rolling groove 412, and the formed shape is good and the quality is good.

[0089] In addition, the pre-rolling sleeve part 41 and the heating part 42 are matched with the cover, forming an annular heating cavity, and the outer circle of the pre-rolling sleeve part 41 is matched with the position distribution of the pre-rolling sleeve interface 411, and the air holes 414 are arranged, which can be matched with the cup wall of the cup mouth for rolling edge and can be heated effectively, covering the appropriate heating range, effectively guaranteeing the success rate of subsequent rolling.

[0090] As preferred, as shown in Figure 6 The heating part 42 comprises a heating cover 421 with an outer diameter slightly larger than the outer diameter of the pre-rolling sleeve part 41, the front end of the heating cover 421 is sealingly connected with the front end of the pre-rolling sleeve part 41, and the rearward extending parts of the two form the first part 4201 of the annular heating cavity 420, the heating part 42 further comprises a butt joint cover 422, which is communicated between the rear end of the heating cover 421 and the output end of the heating mechanism 3, and the butt joint cover 422 is hollow to form the second part 4202 of the heating cavity 420.

[0091] As preferred, as shown in Figure 5As shown, the pre-rolling driving mechanism 2 comprises a sliding part 21 which is slidingly installed on the heating base 201 and linearly slides relative to the feeding and discharging rotary table module 10, and the pre-rolling mechanism 4 is installed on the sliding part 21, and the first driving assembly 22 drives the sliding part 21 to slide.

[0092] Preferably, a linear guide rail is arranged in the heating base 201, and a sliding block which is slidingly installed on the linear guide rail is arranged at the bottom of the sliding part 21.

[0093] Embodiment Three

[0094] The same or corresponding components in this embodiment as those in the above embodiments are denoted by the same reference numerals, and only the differences from the above embodiments will be described hereinafter. The difference between this embodiment and the above embodiments is that:

[0095] Preferably, as shown in the drawings, Figures 8-9 the edge-rolling module 30 comprises the first edge-rolling driving mechanism 5 and the second edge-rolling driving mechanism 6 which are installed on the edge-rolling base 301, and the edge-rolling mechanism 7 which comprises an edge-rolling connecting sleeve 71, a first edge-rolling module 72 installed at the front end of the edge-rolling connecting sleeve 71, and a second edge-rolling module 73 slidingly sleeved on the edge-rolling connecting sleeve 71, the edge-rolling connecting sleeve 71 is installed on the first edge-rolling driving mechanism 5 and driven by the first edge-rolling driving mechanism 5 to perform reciprocating horizontal movement relative to the feeding and discharging rotary table module 10, the rear end of the second edge-rolling module 73 is connected with the second edge-rolling driving mechanism 6 and driven by the second edge-rolling driving mechanism 6 to perform reciprocating horizontal movement relative to the edge-rolling connecting sleeve 71, the material carrying mechanism 1 is arranged opposite to the edge-rolling mechanism 7 through rotary movement, and the edge-rolling mechanism 7 performs horizontal translation towards the material carrying mechanism 1 to make the pre-rolled paper cup 102 have its cup opening sleeved on the second edge-rolling module 73, and the first edge-rolling module 72 and the second edge-rolling module 73 are linked and matched to make the pre-rolled part 111 of the cup opening edge be shaped into the edge-rolling part 112.

[0096] It should be noted that, as shown in the drawings, Figure 2 the cup opening edge of the pre-rolled paper cup 102 is slightly curved outward to form a circular-arc-shaped pre-rolled part 111, and the purpose of the edge-rolling module 30 is to make the pre-rolled part 111 be further curled and reduced to form the edge-rolling part 112 which has a ring-shaped cross section.

[0097] In this embodiment, a curling mechanism 7 is provided by moving relative to the loading mechanism 1, and a first curling drive mechanism 5 is provided to drive the curling mechanism 7 to move toward the loading mechanism 1 as a whole so that the cup mouth of the pre-curled paper cup 102 on the loading mechanism 1 is placed on the curling mechanism 7 for curling operation, or the curling mechanism 7 is driven to move backward away from the loading mechanism 1 so that the paper cup with the curled edge is separated from the curling mechanism 7, thereby cooperating with the loading mechanism 1 to complete the loading and unloading of the paper cup; and a second curling drive mechanism 6 is provided to drive the second curling module 73 of the curling mechanism 7 to connect the curling sleeve 71, and utilizes the linkage cooperation between the first curling module 72 and the second curling module 73, so that when the second curling module 73 extends forward, it drives the first curling module 72 to rotate outward synchronously to make way for the loading of the pre-curled paper cup 102, or when the second curling module 73 retracts backward, it drives the first curling module 72 to rotate inward synchronously to cooperate with the second curling module 73 to extrude the pre-curled portion 111 on the edge of the cup mouth into the curling portion 112. The overall action is reliable and efficient, the paper cup loading and unloading and curling operations are well coordinated, and the curling effect is excellent.

[0098] As a preference, Figures 12-14 As shown, the second curling module 73 includes a curling sleeve portion 731 and a curling sleeve shaft portion 733. The curling sleeve shaft portion 733 is slidably sleeved in the curling connection sleeve 71, and the front end of the shaft is connected to the curling sleeve portion 731. The front end of the curling sleeve portion 731 has a curling sleeve joint 7311 that is adapted to the shape of the inner ring of the cup mouth of the pre-curled paper cup 102. The terminal outer ring of the curling sleeve joint 7311 is circumferentially provided with a second arc-shaped curling groove 730. The pre-curled paper cup 102 is sleeved on the curling sleeve joint 7311 and its pre-curled portion 111 is placed in the second curling groove 730. A curling module 72 has a first curling groove 720 that matches the second curling groove 730. The first curling module 72 is composed of a plurality of circumferential arrays and first curling module groups 721 that divide the first curling groove 720 into a plurality of arc segments. The first curling module 721 is hingedly connected to the second curling module 73. When the second curling module 73 performs a reciprocating translation movement, it drives each of the first curling modules 721 to rotate outward synchronously to make way for the loading of the pre-curled paper cup 102, or to rotate inward synchronously to cooperate with the second curling groove 730 to extrude and form the curling portion 112.

[0099] In the embodiment, the second crimping groove 730 in the form of a semicircular arc is arranged on the outer ring of the crimping sleeve joint 7311 of the second crimping module 73, and a semicircular first crimping groove 720 is arranged on the first crimping module 72. When the first crimping groove 720 is directly opposite the second crimping groove 730 for splicing and folding, the pre-crimped part 111 prearranged in the second crimping groove 730 is extruded to be further crimped and reduced in size along the circular arc of the crimping groove, and finally the crimping part 112 in the form of a ring is formed.

[0100] It should be noted that the first crimping module 72 is composed of a plurality of first crimping modules 721 arranged in a circumferential array. Each first crimping module 721 is hingedly connected to the second crimping module 73. When the second crimping module 73 extends forward, it drives each first crimping module 721 to rotate and spread, so that the second crimping groove 730 is exposed, and the pre-crimped paper cup 102 can be smoothly sleeved on the crimping sleeve joint 7311 with the pre-crimped part 111 arranged in the second crimping groove 730. The structure is ingenious. By arranging a plurality of first crimping modules 721 in an array, the feeding problem of the paper cup to be processed is solved, and the pre-crimped part 111 of a complete circle can be simultaneously extruded and curled during crimping, thereby achieving efficient and rapid completion of the crimping operation.

[0101] As a preferred embodiment, as shown in Figures 15-17 The first crimping module 721 includes a crimping connecting rod part 722 and a crimping claw head part 723. The two ends of the crimping connecting rod part 722 are respectively hingedly connected to the crimping connecting sleeve 71 and the crimping claw head part 723. The second crimping module 73 further includes a crimping hinge part 732 located at the rear side of the crimping sleeve joint part 731. The end of the crimping claw head part 723 is hingedly connected to the crimping connecting rod part 722, and the middle part is hingedly connected to the crimping hinge part 732. When the second crimping module 73 translates towards the material loading mechanism 1, it drives each crimping claw head part 723 to rotate forward around the hinge point A between the crimping connecting rod part 722 and the crimping claw head part 723. At this time, the first crimping groove 720 is separated from the second crimping groove 730. When the second crimping module 73 translates away from the material loading mechanism 1, it drives each crimping claw head part 723 to rotate backward around the hinge point A. At this time, the first crimping groove 720 is directly opposite the second crimping groove 730 for splicing to form a circular groove 70 that is adapted to the shape of the crimping part 112.

[0102] As a preferred embodiment, the shaft of the crimping sleeve joint part 733 extends out of the crimping connecting sleeve 71 and is connected to the crimping sleeve joint part 731 and the crimping hinge part 732. The rear end of the shaft extends out of the crimping connecting sleeve 71 and is connected to the second crimping driving mechanism 6.

[0103] As a preferred embodiment, as shown in Figure 12As shown, the front part of the crimping hinge 732 matches the circumferential array of the first crimping die set 721 with a plurality of hinge joints 7321, and each crimping claw head 723 is hingedly connected to the corresponding hinge joint 7321.

[0104] As a preferred, the first crimping die set 721 is provided with 6 groups, and the hinge joints 7321 are correspondingly provided with 6 groups.

[0105] As a preferred, as shown in the figure, Figure 9 As shown, the first crimping drive mechanism 5 includes a sliding part 21 which is slidingly installed on the crimping base 301 and linearly slides relative to the feeding and discharging rotary table module 10, and the sliding part 21 is installed with the crimping connecting sleeve 71, and further includes a first drive assembly 22 which drives the sliding part 21 to slide.

[0106] As a preferred, the crimping base 301 is provided with a linear guide rail, and the bottom of the sliding part 21 is provided with a sliding block which is slidingly installed on the linear guide rail.

[0107] As a preferred, as shown in the figure, Figures 10-11 As shown, the second crimping drive mechanism 6 includes a second drive part 61 which is installed on the crimping base 301, and the rotating drive end of the second drive part 61 is eccentrically connected with an output shaft part 62, and further includes a drive connecting part 63, and the top surface of the drive connecting part 63 is provided with a limiting groove 631, and the shaft end of the output shaft part 62 is limitedly arranged in the limiting groove 631, and the width dimension of the limiting groove 631 along the front and back direction is matched with the size of the output shaft part 62, and when the second drive part 61 rotates, the output shaft part 62 drives the drive connecting part 63 to move back and forth, and the drive connecting part 63 is connected with the second crimping module 73.

[0108] As a supplementary description, the output shaft part 62 includes an output part, and the top part of the transverse side of the output part is connected with the output end of the second drive part 61, and the bottom part of the transverse side of the other side is connected with a bearing, forming an eccentric structure, and the bearing is limitingly installed in the limiting groove 631, and through the eccentric shaft drive structure, when the second drive part 61 continuously rotates, it drives the second crimping module 73 to move back and forth, which is suitable for pipeline continuous crimping operation.

[0109] As a preferred, the second drive part 61 is a rotary motor.

[0110] As a preferred, the length dimension of the limiting groove 631 along the left and right direction is greater than the size of the output shaft part 62 to give way to the eccentric rotation of the output shaft part 62.

[0111] As a preferred, as shown in the figure, Figure 11As shown, the sleeve connecting sleeve 71 rear end is provided with a guide rod 64, the drive connecting part 63 sliding guide installation on the guide rod 64.

[0112] It should be noted that the sleeve base 301 includes a lower half for mounting the first sleeve drive mechanism 5 and an upper half for mounting the second drive part 61, wherein the upper half is slidably arranged relative to the lower half, so that when the first sleeve drive mechanism 5 drives the sleeve mechanism 7 to move integrally relative to the material loading mechanism 1, the second sleeve drive mechanism 6 and the upper half of the sleeve base 301 are driven to move synchronously.

[0113] Embodiment four

[0114] The same or corresponding parts of the present embodiment as those in the above embodiments are denoted by the same reference numerals as those in the above embodiments, and for the sake of simplicity, only the differences from the above embodiments will be described hereinafter. The difference between the present embodiment and the above embodiments is that:

[0115] As preferred, as Figure 18 shown, the flattening module 40 includes a first flattening drive mechanism 5' and a second flattening drive mechanism 6' mounted on a flattening base 401, and further includes a flattening mechanism 8, which includes a flattening connecting sleeve 81, a first flattening module 82 mounted on the flattening connecting sleeve 81, and a second flattening module 83 slidingly sleeved on the flattening connecting sleeve 81, the flattening connecting sleeve 81 is mounted on the first flattening drive mechanism 5' and is driven by the first flattening drive mechanism 5' to perform reciprocating flat movement relative to the feeding and discharging turntable module 10, the rear end of the second flattening module 83 is connected with the second flattening drive mechanism 6' and is driven by the second flattening drive mechanism 6' to perform reciprocating flat movement relative to the flattening connecting sleeve 81, the material loading mechanism 1 is arranged opposite to the flattening mechanism 8 through rotary movement, the flattening mechanism 8 performs translation towards the material loading mechanism 1 to make the sleeve edge of the sleeve paper cup 103 sleeved on the second flattening module 83, the first flattening module 82 and the second flattening module 83 are linked and matched to flatten the sleeve part 112 of the cup edge into a flattened sleeve part 113.

[0116] It should be noted that, as Figure 2 shown, the cup edge of the sleeve paper cup 103 is curved outward to form a ring-shaped sleeve part 112, and the purpose of the flattening module 40 is to flatten the sleeve part 112 at least towards the circular arc surface on one side of the cup opening to form a flattened sleeve part 113.

[0117] In the embodiment, the flattening mechanism 8 is arranged to move relative to the carrier mechanism 5, and the first flattening driving mechanism 5' is arranged to drive the flattening mechanism 8 as a whole to move towards the carrier mechanism 5 to enable the cup mouth of the flanged paper cup 103 on the carrier mechanism 5 to be sleeved on the flattening mechanism 8 to perform flattening operation, or to drive the flattening mechanism 8 as a whole to move away from the carrier mechanism 5 to enable the paper cup after flattening to be separated from the flattening mechanism 8, so as to cooperate with the carrier mechanism 5 to complete the feeding and discharging of the paper cup; and the second flattening driving mechanism 6' is arranged to drive the second flattening module 83 of the flattening mechanism 8 to move in the flattening connecting sleeve 81, and the linkage between the first flattening module 82 and the second flattening module 83 is utilized to enable the second flattening module 83 to drive the first flattening module 82 to rotate inwardly and fold synchronously when the second flattening module 83 extends forward to cooperate with the second flattening module 83 to flatten the flange part 112 of the cup mouth into the crimped part 113, or to enable the second flattening module 83 to drive the first flattening module 82 to rotate outwardly and unfold synchronously when the second flattening module 83 retracts backward to enable the pre-flattened paper cup 102 to be accommodated, so that the overall operation is reliable and efficient, the cooperation between the feeding and discharging of the paper cup and the flattening operation is good, and the flattening effect is good.

[0118] As preferred, as shown in Figures 20-22 the second flattening module 83 comprises a flattening sleeve joint part 831 and a flattening sleeve shaft part 833, the flattening sleeve shaft part 833 is sleeved in the flattening connecting sleeve 81, and the front end of the shaft is connected with the flattening sleeve joint part 831, the front end of the flattening sleeve joint part 831 is provided with a flattening sleeve joint head 8311 which is matched with the shape of the inner circle of the cup mouth of the flanged paper cup 103, the outer circle of the terminal end of the flattening sleeve joint head 8311 is provided with a planar second flattening ring surface 830, the flanged paper cup 103 is sleeved on the flattening sleeve joint head 8311, and the flange part 112 thereof abuts against the second flattening ring surface 830; the first flattening module 82 is provided with a first flattening ring surface 820 which is matched with the second flattening ring surface 830, the first flattening module 82 is composed of a plurality of first flattening module groups 821 which are arranged in a circumferential array and divide the first flattening ring surface 820 into a plurality of circular arc segments, the rear end of the first flattening module group 821 is hingedly connected with the flattening connecting sleeve 81, the middle part of the first flattening module group 821 protrudes on one side of the flattening sleeve shaft part 833 and is provided with a flattening abutting part 8210 which abuts against the flattening sleeve shaft part 833, the middle part of the first flattening module group 821 on the side away from the flattening sleeve shaft part 833 is connected with the flattening connecting sleeve 81 and is provided with a flattening elastic member 8211, and the part of the flattening sleeve shaft part 833 which abuts against the flattening abutting part 8210 is a flattening variable diameter part 834 which gradually decreases in diameter from front to back; when the second flattening module 83 moves back and forth, each first flattening module group 821 rotates outwardly and unfolds synchronously to accommodate the feeding of the flanged paper cup 103, or rotates inwardly and folds synchronously to cooperate with the second flattening ring surface 830 to flatten the flange part 112 into the crimped part 113, as shown in Figures 23-25 .

[0119] In this embodiment, a planar second flattening annular surface 830 is provided on the outer ring of the terminal end of the flattening sleeve 8311 of the second flattening module 83, and a first flattening annular surface 820 is provided on the first flattening module 82. When the first flattening annular surface 820 is spliced ​​and closed with the second flattening annular surface 830, the curling portion 112 pre-placed in the second flattening annular surface 830 is squeezed. In this embodiment, the second flattening annular surface 830 flattens the arc surface of the curling portion 112 facing the cup mouth, and the first flattening annular surface 820 flattens the arc surface of the curling portion 112 facing away from the cup mouth and the arc surface along the circumference of the cup mouth.

[0120] It should be noted that the first flattening module 82 is composed of a plurality of first flattening modules 821 arranged in a circumferential array. Each first flattening module 821 is hinged on the flattening connecting sleeve 81 and elastically contacts the flattening reducing portion 834 of the flattening sleeve shaft portion 833 in the second flattening module 83. When the second flattening module 83 retracts backward, it drives the first flattening modules 821 to rotate and disperse, thereby making way for cup unloading. When the second flattening module 83 extends forward, it drives the first flattening modules 821 to rotate and close, so that the first flattening annular surface 820 and the second flattening annular surface 830 cooperate to complete the flattening operation. The structure is ingenious. By arranging multiple first flattening modules 821 in an array, not only the unloading problem of the paper cup to be processed is solved, but also a complete circle of the curled edge portion 112 can be flattened at the same time during flattening, thereby achieving efficient and rapid completion of the flattening operation.

[0121] Preferably, four groups of the first flattening modules 821 are provided.

[0122] As a preference, Figure 20 As shown, the first flattening module 821 includes a flattening connecting rod portion 822 and a flattening claw head portion 823. The rear end of the flattening connecting rod portion 822 is hinged to the flattening connecting sleeve 81, and the front end is connected to the flattening claw head portion 823. The flattening contact portion 8210 and the flattening elastic member 8211 are both provided on the flattening connecting rod portion 822. When the second flattening module 83 moves toward the loading mechanism 1, the flattening contact portion 8210 slides to The small diameter section of the flattening reducing portion 834, and thus each first flattening module 821 are retracted and spliced ​​inward so that the first flattening annular surface 820 is directly matched with the second flattening annular surface 830. When the second flattening module 83 is translated away from the loading mechanism 1, the flattening resistance portion 8210 slides to the large diameter section of the flattening reducing portion 834, and thus each first flattening module 821 is opened and separated outward so that the first flattening annular surface 820 is separated from the second flattening annular surface 830.

[0123] As preferred, the shaft front end of the flattening sleeve joint shaft part 833 extends out of the flattening connection sleeve 81 and is connected with the flattening sleeve joint part 831, and the shaft rear end extends out of the flattening connection sleeve 81 and is connected with the second flattening driving mechanism 6'.

[0124] As preferred, as shown in the figure, the first flattening driving mechanism 5' comprises a sliding part 21 which is slidingly installed on the flattening base 401 and linearly slides relative to the feeding and discharging rotary table module 10, and the flattening connection sleeve 81 is installed on the sliding part 21, and further comprises a first driving assembly 22 which drives the sliding part 21 to slide. Figures 18-19

[0125] As preferred, a linear guide rail is arranged in the flattening base 401, and a sliding block which is slidingly installed on the linear guide rail is arranged at the bottom of the sliding part 21.

[0126] As preferred, as shown in the figure, the second flattening driving mechanism 6' comprises a second driving part 61 which is installed on the flattening base 401, and an output shaft part 62 which is eccentrically connected to the rotating driving end of the second driving part 61, and further comprises a driving connection part 63, the top surface of which is provided with a limiting groove 631, and the shaft end of the output shaft part 62 is limitedly arranged in the limiting groove 631, and the width dimension of the limiting groove 631 along the front and back direction is matched with the size of the output shaft part 62, and when the second driving part 61 rotates, the driving connection part 63 is driven by the output shaft part 62 to move back and forth, and the driving connection part 63 is connected with the second flattening module 83. Figure 19

[0127] As a supplementary description, the output shaft part 62 comprises an output part, the top part of the lateral side of which is connected with the output end of the second driving part 61, and the bottom part of the lateral side of which is connected with a bearing which is arranged in parallel, forming an eccentric structure, and the bearing is limitingly installed in the limiting groove 631, and when the second driving part 61 continuously rotates, the second flattening module 83 is driven to move back and forth by the eccentric shaft driving structure, which is suitable for the continuous hemming operation in a pipeline mode.

[0128] As preferred, the second driving part 61 is a rotary motor.

[0129] As preferred, the length dimension of the limiting groove 631 along the left and right direction is greater than the size of the output shaft part 62 to give room for the eccentric rotation of the output shaft part 62.

[0130] As preferred, a guide rod 64 is arranged at the rear end of the flattening connection sleeve 81, and the driving connection part 63 is slidingly and guidingly installed on the guide rod 64.

[0131] ​​It should be pointed out that the flattening base 401 comprises a lower half for mounting the first flattening driving mechanism 5' and an upper half for mounting the second driving part 61, wherein the upper half is slidably arranged relative to the lower half, so that when the first flattening driving mechanism 5' drives the flattening mechanism 8 to move integrally relative to the material carrying mechanism 1, the second flattening driving mechanism 6' and the upper half of the flattening base 401 are driven to move synchronously.

[0132] Embodiment Five

[0133] The same or corresponding components in this embodiment as in the above embodiments are denoted by the same reference numerals, and only the differences from the above embodiments will be described below. This embodiment differs from the above embodiments in that:

[0134] As shown in Figure 26 , the first driving assembly 22 is arranged as a cam driving structure, which comprises a first driving shaft 221 vertically rotatably mounted on the base, the bottom input end of the first driving shaft 221 is connected to an external power source to obtain rotary power, and the top output end is connected to a cam part 222, the top surface of the cam part 222 is concavely provided with an annular cam groove 220, and the sliding part 21 comprises a cam block 210 limited in the cam groove 220, as the cam part 222 rotates, the cam block 210 is guided by the track of the cam groove 220 to move back and forth.

[0135] As shown in Figure 27 , the cam groove 220 is arranged eccentrically relative to the cam part 222 and is a symmetrical structure, which comprises a first holding section 2201 and a second holding section 2202 oppositely arranged and having different radii, and two variable-diameter sections 2203 oppositely arranged, one of the variable-diameter sections 2203 is connected between the first holding section 2201 and the second holding section 2202, when the first holding section 2201 or the second holding section 2202 of the cam part 222 is matched with the cam block 210, the sliding part 21 remains stationary, and when the variable-diameter section 2203 of the cam part 222 is matched with the cam block 210, the sliding part 21 is guided to linearly slide.

[0136] In this embodiment, through the above structure of the cam groove 220, during the rotation of the cam part 222, the cam block 210 is limited by the cam groove 220, which drives the sliding part 21 to move back and forth, which can be matched to continuously perform the edge rolling operation.

[0137] In addition, the installation layout of each component is compact and reasonable, and each component is installed in a chamber while being reasonably matched, so that the driving action is stable and reliable.

[0138] Working process:

[0139] In operation, the semi-finished paper cup 101 is loaded on the loading mechanism 1 for circulation, when it reaches the heating module 20, the heating and softening of the cup mouth and the pre-rolling are performed to form the pre-rolling part 111 in arc shape and obtain the pre-rolling paper cup 102;

[0140] When it reaches the rolling module 30, the second rolling driving mechanism 6 drives the second rolling module 73 to slide out in the rolling connecting sleeve 71 and synchronously drives the first rolling module 72 to open outward to make room, the first rolling driving mechanism 5 drives the rolling mechanism 7 to translate as a whole towards the loading mechanism 1, so that the pre-rolling paper cup 102 on the loading mechanism 1 is sleeved on the rolling sleeve joint 7311 and the pre-rolling part 111 is placed in the second rolling groove 730, the second rolling driving mechanism 6 drives the second rolling module 73 to slide back in the rolling connecting sleeve 71 and synchronously drives the first rolling module 72 to close inward, so that the first rolling groove 720 and the second rolling groove 730 are opposite to each other and are closed to form the circular groove 70 which is suitable for the shape of the rolling part 112, so that the pre-rolling part 111 is extruded and formed into the rolling part 112 and the rolling paper cup 103 is obtained;

[0141] When it reaches the rolling module 30, the second rolling driving mechanism 6 drives the second rolling module 73 to slide out in the rolling connecting sleeve 71 and synchronously drives the first rolling module 72 to open outward to make room, the first rolling driving mechanism 5 drives the rolling mechanism 7 to translate as a whole towards the loading mechanism 1, so that the pre-rolling paper cup 102 on the loading mechanism 1 is sleeved on the rolling sleeve joint 7311 and the pre-rolling part 111 is placed in the second rolling groove 730, the second rolling driving mechanism 6 drives the second rolling module 73 to slide back in the rolling connecting sleeve 71 and synchronously drives the first rolling module 72 to close inward, so that the first rolling groove 720 and the second rolling groove 730 are opposite to each other and are closed to form the circular groove 70 which is suitable for the shape of the rolling part 112, so that the pre-rolling part 111 is extruded and formed into the rolling part 112 and the rolling paper cup 103 is obtained;

[0142] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A paper cup and paper bowl curling and square pressing system, characterized in that: The invention comprises a rotating loading and unloading turntable module (10) and a heating module (20), a curling module (30) and a flattening module (40) which are sequentially arranged on the periphery of the loading and unloading turntable module (10) along the rotation direction of the loading and unloading turntable module (10). The loading and unloading turntable module (10) comprises a plurality of loading mechanisms (1) arranged along the circumference. During the process of semi-finished paper cups (101) being loaded on the loading mechanisms (1) and being circulated, the semi-finished paper cups (101) are sequentially matched with the loading mechanisms (1). The cup rim is heated, softened, and pre-curled at the heating module (20) to form an arc-shaped pre-curled portion (111) and obtain a pre-curled paper cup (102); the pre-curled portion (111) is guided and rolled at the curling module (30) to form a circular curling portion (112) and obtain a curled paper cup (103); and the curling portion (112) is flattened at the flattening module (40) to form a square-shaped curling portion (113) and obtain a finished paper cup (104).

2. The paper cup and bowl curling and squaring system according to claim 1, characterized in that: The heating module (20) comprises a pre-rolling drive mechanism (2) and a heating mechanism (3) mounted on a heating base (201); the pre-rolling drive mechanism (2) is connected to a pre-rolling mechanism (4); the pre-rolling mechanism (4) is driven by the pre-rolling drive mechanism (2) to perform a reciprocating translational motion relative to the loading and unloading turntable module (10); the loading mechanism (1) is arranged opposite to the pre-rolling mechanism (4) through a rotational motion; the semi-finished paper cup (101) on the loading mechanism is sleeved on the pre-rolling mechanism (4) with its cup mouth; after the heating mechanism (3) heats and softens the cup mouth of the semi-finished paper cup (101), the pre-rolling mechanism (4) translates toward the loading mechanism (1) to guide the edge of the cup mouth to curl outward to form the pre-rolled portion (111).

3. The paper cup and bowl curling and squaring system according to claim 2, characterized in that: The pre-rolling mechanism (4) comprises a pre-rolling sleeve portion (41), the front side of the pre-rolling sleeve portion (41) is provided with an annular pre-rolling sleeve interface (411), the semi-finished paper cup (101) is sleeved on the pre-rolling sleeve interface (411), the terminal end of the pre-rolling sleeve interface (411) is provided with an arc-shaped pre-rolling edge groove (412), the cup mouth of the semi-finished paper cup (101) contacts the edge of the pre-rolling edge groove (412), and when the two move relative to each other, the cup mouth is guided by the shape of the pre-rolling edge groove (412) and gradually curls outwards.

4. The paper cup and bowl curling and squaring system according to claim 3, characterized in that: The pre-rolling mechanism (4) further comprises a heating portion (42), the heating portion (42) being arranged outside the pre-rolling sleeve portion (41) from the rear side, and a heating chamber (420) communicating with the heating mechanism (3) is formed between the heating portion (42) and the pre-rolling sleeve portion (41). The outer ring of the pre-rolling sleeve portion (41) is provided with air holes (414) in a positional distribution matching the pre-rolling sleeve interface (411). Hot air flow is transported from the heating mechanism (3) and output through the heating chamber (420) and the air holes (414) to heat the cup mouth of the semi-finished paper cup (101) in the pre-rolling sleeve interface (411). The heating mechanism (3) is connected to the pre-rolling mechanism (4), and comprises an air flow channel (31) directly connected to the heating chamber (420) and an air pump connected to the air flow channel (31).

5. The paper cup and bowl curling and squaring system according to claim 1, characterized in that: The curling module (30) includes a first curling drive mechanism (5) and a second curling drive mechanism (6) installed on a curling base (301), and also includes a curling mechanism (7), wherein the curling mechanism (7) includes a curling connection sleeve (71), a first curling module (72) installed at the front end of the curling connection sleeve (71), and a second curling module (73) slidably sleeved in the curling connection sleeve (71), and the curling connection sleeve (71) is installed on the first curling drive mechanism (5) and is driven by the first curling drive mechanism (5) to perform a reciprocating translation relative to the loading and unloading turntable module (10) The rear end of the second curling module (73) is connected to the second curling drive mechanism (6) and is driven by the second curling drive mechanism (6) to perform a reciprocating translation motion relative to the curling connection sleeve (71); the loading mechanism (1) is arranged opposite to the curling mechanism (7) through a rotational motion; the curling mechanism (7) is translated toward the loading mechanism (1) so that the pre-curled paper cup (102) is sleeved on the second curling module (73) with its cup mouth; the first curling module (72) and the second curling module (73) are linked and coordinated so that the pre-curled portion (111) of the cup mouth edge is formed into a curled portion (112).

6. The paper cup and bowl curling and squaring system according to claim 5, characterized in that: The second curling module (73) comprises a curling sleeve portion (731) and a curling sleeve shaft portion (733), the curling sleeve shaft portion (733) is slidably sleeved in the curling connection sleeve (71), and the front end of the shaft is connected to the curling sleeve portion (731), the front end of the curling sleeve portion (731) has a curling sleeve joint (7311) adapted to the shape of the inner ring of the cup mouth of the pre-curled paper cup (102), and the terminal outer ring of the curling sleeve joint (7311) is circumferentially provided with a second arc-shaped curling groove (730), the pre-curled paper cup (102) is sleeved on the curling sleeve joint (7311) and its pre-curled portion (111) is placed in the second curling groove (730); The first curling module (72) has a first curling groove (720) matched with the second curling groove (730), and the first curling module (72) is composed of a plurality of first curling module groups (721) arranged in a circumferential array and dividing the first curling groove (720) into a plurality of arc segments. The first curling module (721) is hingedly connected to the second curling module (73). When the second curling module (73) performs a reciprocating translation movement, it drives each of the first curling modules (721) to rotate outward synchronously to make way for the pre-curled paper cup (102) to be loaded, or to rotate inward synchronously to cooperate with the second curling groove (730) to extrude and form the curling portion (112).

7. The paper cup and bowl curling and squaring system according to claim 6, characterized in that: The first curling module (721) includes a curling connecting rod portion (722) and a curling claw head portion (723), and the two ends of the curling connecting rod portion (722) are respectively hinged to the curling connecting sleeve (71) and the curling claw head portion (723). The second curling module (73) also includes a curling hinge portion (732) located at the rear side of the curling sleeve portion (731), and the end of the curling claw head portion (723) is hinged to the curling connecting rod portion (722), and the middle portion is hinged to the curling hinge portion (732). The second curling module (73) faces When the loading mechanism (1) is translated, each curling claw head (723) is driven to rotate forward around the hinge point A between the curling connecting rod portion (722) and the curling claw head (723), and at this time, the first curling groove (720) is separated from the second curling groove (730); when the second curling module (73) is translated away from the loading mechanism (1), each curling claw head (723) is driven to rotate backward around the hinge point A, and at this time, the first curling groove (720) and the second curling groove (730) are aligned and closed to form a circular groove (70) that is adapted to the shape of the curling portion (112).

8. The paper cup and bowl curling and squaring system according to claim 1, characterized in that: The flattening module (40) includes a first flattening drive mechanism (5') and a second flattening drive mechanism (6') mounted on a flattening base (401), and also includes a flattening mechanism (8), wherein the flattening mechanism (8) includes a flattening connecting sleeve (81), a first flattening module (82) mounted on the flattening connecting sleeve (81), and a second flattening module (83) slidably sleeved in the flattening connecting sleeve (81), wherein the flattening connecting sleeve (81) is mounted on the first flattening drive mechanism (5') and driven by the first flattening drive mechanism (5') to perform a reciprocating translation relative to the loading and unloading turntable module (10) The rear end of the second flattening module (83) is connected to the second flattening drive mechanism (6') and is driven by the second flattening drive mechanism (6') to perform a reciprocating translation motion relative to the flattening connecting sleeve (81); the loading mechanism (1) is arranged opposite to the flattening mechanism (8) through a rotational motion; the flattening mechanism (8) is translated toward the loading mechanism (1) so that the curled paper cup (103) is sleeved on the second flattening module (83) with its cup mouth; the first flattening module (82) and the second flattening module (83) are linked and cooperated to flatten the curled portion (112) of the cup mouth edge into a curled portion (113).

9. The paper cup and bowl curling and squaring system according to claim 8, characterized in that: The second flattening module (83) includes a flattening sleeve portion (831) and a flattening sleeve shaft portion (833). The flattening sleeve shaft portion (833) is slidably sleeved in the flattening connection sleeve (81), and the front end of the shaft is connected to the flattening sleeve portion (831). The front end of the flattening sleeve portion (831) has a flattening sleeve joint (8311) adapted to the shape of the inner ring of the cup mouth of the curled paper cup (103). The terminal outer ring of the flattening sleeve joint (8311) is surrounded by a plane-shaped second flattening annular surface (830). The curled paper cup (103) is sleeved on the flattening sleeve joint (8311) and its curled edge portion (112) contacts the second flattening annular surface (830). The first flattening module (82) has a first flattening annular surface (820) matched with the second flattening annular surface (830). The first flattening module (82) is composed of a plurality of first flattening module groups (821) arranged in a circumferential array and dividing the first flattening annular surface (820) into a plurality of circular arc segments. The rear end of the first flattening module group (821) is hingedly connected to the flattening connecting sleeve (81), a flattening contact portion (8210) that contacts the flattening sleeve shaft portion (833) is protruded on one side of the middle portion facing the flattening sleeve shaft portion (833), and a flattening contact portion (8210) that contacts the flattening sleeve shaft portion (833) is protruded on the middle portion facing away from the flattening sleeve shaft portion ( A flattening elastic member (8211) is connected between one side of the flattening sleeve (833) and the flattening connecting sleeve (81); the portion where the flattening sleeve shaft portion (833) contacts the flattening contact portion (8210) is a flattening reducing portion (834) whose diameter gradually decreases from front to back; when the second flattening module (83) performs a reciprocating translation movement, it drives each first flattening module (821) to rotate outwards and open synchronously to make way for the curled paper cup (103) to be loaded, or to rotate inwards and close synchronously to cooperate with the second flattening annular surface (830) to flatten and form the curling portion (113).

10. The paper cup and bowl curling and squaring system according to claim 9, characterized in that: The first flattening module (821) comprises a flattening connecting rod portion (822) and a flattening claw head portion (823). The rear end of the flattening connecting rod portion (822) is hinged to the flattening connecting sleeve (81), and the front end is connected to the flattening claw head portion (823). The flattening contact portion (8210) and the flattening elastic member (8211) are both provided on the flattening connecting rod portion (822). When the second flattening module (83) moves horizontally toward the loading mechanism (1), the flattening contact portion (8210) slides to the position where the flattening connecting rod portion (822) is flattened. The small diameter section of the flattening variable diameter portion (834), and thereby each first flattening module group (821) are folded inwardly and spliced ​​so that the first flattening annular surface (820) and the second flattening annular surface (830) are aligned with each other. When the second flattening module (83) is translated away from the loading mechanism (1), the flattening abutment portion (8210) slides to the large diameter section of the flattening variable diameter portion (834), and thereby each first flattening module group (821) is opened outwardly and separated so that the first flattening annular surface (820) and the second flattening annular surface (830) are separated.

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