A flattening mouth mechanism

Abstract

The utility model provides a kind of flattening mechanism, by and with the relative movement of material loading mechanism setting flattening mechanism, cooperation is set first flattening drive mechanism drive flattening mechanism whole movement to cooperate material loading mechanism complete paper cup's feeding and discharging, and setting second flattening drive mechanism separately drive flattening mechanism's second flattening module moves, and utilize the linkage cooperation between first flattening module and second flattening module to make the edge of cup mouth edge folding part flattening is shaped into pressure roll part, action reliable and efficient, paper cup feeding and discharging and flattening operation cooperation degree is good, flattening effect is good.

Description

Technical Field

[0001] This utility model relates to the field of paper cup production technology, and in particular to a flattening mechanism. Background Technology

[0002] In the food packaging and beverage delivery container manufacturing industry, paper cups and bowls are widely used due to their environmental friendliness, lightweight nature, and cost advantages. To ensure airtightness and hygiene, heat-sealing film or aluminum foil is often used to cover the rim of the cup or bowl.

[0003] Chinese patent CN202121512869.6 discloses an automatic cup rim curling device for an environmentally friendly paper cup forming machine. The device includes a base, with threaded shafts on both sides of the upper end of the base. A placement plate is attached to one end of each threaded shaft. A bracket is mounted on the upper end of the base, and a hydraulic cylinder runs through the bracket. A replacement mechanism is located at the lower end of the hydraulic cylinder. A rotating shell is located on one side of the replacement mechanism, and a fixing mechanism is located inside the rotating shell. A fixing plate is connected to one end of the fixing mechanism, and a paper cup is placed inside the fixing plate. A push plate is located at the lower end of the paper cup, and a lifting motor is located at the lower end of the push plate. In this automatic cup rim curling device for the environmentally friendly paper cup forming machine, the use of threaded grooves, threaded rods, and a curling turntable, along with the interaction between the threaded grooves and threaded rods, facilitates the curling of cup rims of different sizes.

[0004] To ensure airtightness and hygiene, heat-sealing film or aluminum foil is often used to cover the mouth of a cup or bowl. However, the rounded edge of the rolled edge results in a small contact area with the heat-sealing film or aluminum foil, which usually leads to poor bonding strength and difficulty in effectively sealing the cup. Therefore, this utility model proposes a cup mouth rolled edge flattening structure that flattens the rounded surface of the rolled edge to increase the contact area between the cup mouth and the sealing film. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a flattening mechanism. This mechanism moves relative to the material loading mechanism, and a first flattening drive mechanism drives the entire flattening mechanism to cooperate with the material loading mechanism in loading and unloading paper cups. A second flattening drive mechanism independently drives the second flattening module of the flattening mechanism. The linkage between the first and second flattening modules flattens the rolled edge of the cup rim into a rolled section. The operation is reliable and efficient, with good coordination between paper cup loading / unloading and flattening operations, resulting in excellent flattening effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A flattening mechanism includes a base, on which a first flattening drive mechanism and a second flattening drive mechanism are mounted. It also includes a flattening mechanism and a material loading mechanism positioned opposite the flattening mechanism. The flattening mechanism includes a connecting sleeve, a first flattening module mounted on the connecting sleeve, and a second flattening module slidably fitted inside the connecting sleeve. The connecting sleeve is mounted on the first flattening drive mechanism and is driven by the first flattening drive mechanism to reciprocate horizontally relative to the material loading mechanism. The rear end of the second flattening module is connected to the second flattening drive mechanism and is driven by the second flattening drive mechanism to reciprocate horizontally relative to the connecting sleeve. A rolled-edge paper cup is loaded on the material loading mechanism. The flattening mechanism moves horizontally toward the material loading mechanism so that the rolled-edge paper cup is fitted onto the second flattening module with its rim. The first flattening module and the second flattening module work together to flatten the rolled edge of the cup rim into a rolled portion.

[0008] It should be further explained that the edge of the rolled-edge paper cup is bent outward to form a ring-shaped rolled edge. The purpose of the flattening mechanism of this utility model is to flatten the rolled edge at least on the arc surface facing the cup mouth to form a rolled edge.

[0009] Preferably, the second flattening module includes a sleeve portion and a sleeve shaft portion. The sleeve shaft portion is slidably fitted inside the connecting sleeve, and its front end is connected to the sleeve portion. The front end of the sleeve portion has a connector that matches the shape of the inner ring of the cup mouth of the rolled-edge paper cup. A planar second flattening ring surface is provided around the outer ring of the end of the connector. The rolled-edge paper cup is fitted onto the connector, and its rolled edge abuts against the second flattening ring surface. The first flattening module has a first flattening ring surface that matches the second flattening ring surface. The first flattening module is composed of several circumferentially arranged components that divide the first flattening ring surface into several arc segments. The first flattening module is composed of a rear end hinged to a connecting sleeve, a protruding abutting part on the side of the middle facing the sleeve shaft, and an elastic element connected between the middle side away from the sleeve shaft and the connecting sleeve. The part of the sleeve shaft that abuts the abutting part is a variable diameter part whose diameter gradually decreases from front to back. When the second flattening module performs reciprocating horizontal movement, it drives each of the first flattening modules to rotate outward synchronously to make way for the feeding of the rolled paper cup, or to rotate inward synchronously to close in order to cooperate with the second flattening ring to flatten and form the rolled part.

[0010] Preferably, the first flattening module includes a connecting rod and a claw head. The rear end of the connecting rod is hinged to the connecting sleeve, and the front end is connected to the claw head. The abutting part and the elastic element are both disposed on the connecting rod. When the second flattening module moves toward the material loading mechanism, the abutting part slides to the small diameter section of the variable diameter section, thereby causing each of the first flattening modules to retract inward and splice together so that the first flattening ring surface and the second flattening ring surface are aligned and fitted. When the second flattening module moves away from the material loading mechanism, the abutting part slides to the large diameter section of the variable diameter section, thereby causing each of the first flattening modules to open outward and separate so that the first flattening ring surface and the second flattening ring surface are separated.

[0011] Preferably, the first flattening module is provided with 4 sets.

[0012] Preferably, the front end of the sleeve shaft extends out of the connecting sleeve and is connected to the sleeve portion, and the rear end of the shaft extends out of the connecting sleeve and is connected to the second flattening drive mechanism.

[0013] Preferably, the first flattening drive mechanism includes a sliding part, which is slidably mounted on the base and slides linearly relative to the material loading mechanism. The connecting sleeve is mounted on the sliding part. The mechanism also includes a first flattening drive assembly, which drives the sliding part to slide.

[0014] Preferably, the base is provided with a linear guide rail, and the bottom of the sliding part is provided with a slider that is slidably mounted on the linear guide rail.

[0015] Preferably, the first flattening drive assembly is configured as a cam drive structure, which includes a flattening drive shaft vertically rotatably mounted on the base. The bottom input end of the flattening 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 recessed with an annular cam groove. The sliding portion includes a protrusion limited within the cam groove. As the cam portion rotates, the protrusion is guided by the trajectory of the cam groove to move back and forth.

[0016] Preferably, the cam groove is eccentrically arranged relative to the cam portion and has a symmetrical structure. It includes a first holding section and a second holding section that are arranged opposite each other with different radii, and also includes two oppositely arranged variable diameter sections. The variable diameter section is connected between the first holding section and the second holding section. When the cam portion rotates to the point where its first holding section or second holding section engages with the protrusion, the sliding part remains stationary. When the cam portion rotates to the point where its variable diameter section engages with the protrusion, it guides and drives the sliding part to slide linearly.

[0017] Preferably, the second flattening drive mechanism includes a second flattening drive unit mounted on the base, an output shaft unit eccentrically connected to the rotation drive end of the second flattening drive unit, and a drive connection unit. The top surface of the drive connection unit is provided with a limiting groove, and the shaft end of the output shaft unit is limited and disposed in the limiting groove. The width dimension of the limiting groove in the front-back direction is adapted to the dimension of the output shaft unit. When the second flattening drive unit rotates, it drives the drive connection unit to move back and forth reciprocally through the output shaft unit. The drive connection unit is connected to the second flattening module.

[0018] Preferably, the second flattening drive unit is a rotary motor.

[0019] Preferably, the length of the limiting groove in the left-right direction is greater than the size of the output shaft portion to allow for eccentric rotation of the output shaft portion.

[0020] Preferably, a guide rod is provided at the rear end of the connecting sleeve, and the driving connection part is slidably guided and mounted on the guide rod.

[0021] The beneficial effects of this utility model are as follows:

[0022] (1) This utility model sets up a flattening mechanism that moves relative to the material loading mechanism, and sets up a first flattening drive mechanism to drive the flattening mechanism to move as a whole to cooperate with the material loading mechanism to complete the loading and unloading of paper cups. A second flattening drive mechanism is set up to drive the second flattening module of the flattening mechanism to move separately. The linkage between the first flattening module and the second flattening module is used to flatten the rolled edge of the cup mouth into a rolled part. The operation is reliable and efficient, the paper cup loading and unloading and flattening operation are well coordinated, and the flattening effect is excellent.

[0023] (2) In this utility model, a planar second flattening ring surface is provided around the outer ring of the socket terminal of the second flattening module, and a first flattening ring surface is provided on the first flattening module. The two flattening ring surfaces are spliced ​​together to flatten the rolled edge portion pre-placed in the second flattening ring surface to form a rolled portion. The first flattening module is composed of several circumferentially arrayed first flattening modules. Each first flattening module hinged to the connecting sleeve elastically abuts against the variable diameter portion of the sleeve shaft in the second flattening module to achieve linkage opening to make room or retraction splicing. The structure is ingenious and not only solves the problem of feeding paper cups to be processed, but also enables the flattening of a complete rolled edge portion at the same time, so as to achieve efficient and fast completion of the flattening operation.

[0024] (3) In this utility model, the first flattening drive mechanism is set by the cooperation structure of the cam groove and the protrusion, so that during the rotation of the cam part, the cam groove limits the protrusion and drives the sliding part to move back and forth. The second flattening drive mechanism with the eccentric shaft structure drives the second flattening module to move back and forth, thereby adapting to the continuous flattening operation of the assembly line. Attached Figure Description

[0025] Figure 1 This is a front view of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the main structure of this utility model (excluding the material loading mechanism);

[0027] Figure 3 This is a schematic diagram of the material loading mechanism in this utility model;

[0028] Figure 4 These are diagrams showing the state of the flattened paper cups before and after processing by the flattening mechanism in this utility model.

[0029] Figure 5 for Figure 2 A sectional view;

[0030] Figure 6 This is a schematic diagram showing the connection between the flattening mechanism and the second flattening drive mechanism in this utility model;

[0031] Figure 7 This is a schematic diagram showing the connection between the pressure flattening mechanism and the drive connection part in this utility model;

[0032] Figure 8 This is a schematic diagram showing the cooperation between the first flattening module and the second flattening module in this utility model;

[0033] Figure 9 This is a schematic diagram showing the cooperation of the two sets of first flattening modules in this utility model;

[0034] Figure 10 for Figure 7 Axial sectional view;

[0035] Figure 11 for Figure 10 Enlarged view of point A in the middle;

[0036] Figure 12 for Figure 11 Enlarged view at point B in the middle;

[0037] Figure 13 This is a front view of the cam groove structure in this utility model. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] Example 1

[0042] like Figure 1-5 As shown, a flattening mechanism includes a base 1, on which a first flattening drive mechanism 2 and a second flattening drive mechanism 3 are mounted. It also includes a flattening mechanism 4 and a material loading mechanism 5 positioned opposite the flattening mechanism 4. The flattening mechanism 4 includes a connecting sleeve 41, a first flattening module 42 mounted on the connecting sleeve 41, and a second flattening module 43 slidably fitted within the connecting sleeve 41. The connecting sleeve 41 is mounted on the first flattening drive mechanism 2 and is driven by the first flattening drive mechanism 2 relative to the material loading mechanism. 5. The second flattening module 43 is connected to the second flattening drive mechanism 3 and is driven by the second flattening drive mechanism 3 to perform a reciprocating flattening operation relative to the connecting sleeve 41. The material loading mechanism 5 is loaded with a rolled-edge paper cup 103. The flattening mechanism 4 moves towards the material loading mechanism 5 so that the rolled-edge paper cup 103 is fitted onto the second flattening module 43 with its cup mouth. The first flattening module 42 and the second flattening module 43 work together to flatten the rolled edge 112 of the cup mouth into a rolled part 113.

[0043] It should be added that, such as Figure 4 As shown, the edge of the rolled-edge paper cup 103 is bent outward to form an annular rolled edge portion 112. The purpose of the flattening mechanism of this utility model is to flatten the rolled edge portion 112 at least on the arc surface facing the cup mouth to form a rolled-edge portion 113.

[0044] In this embodiment, a flattening mechanism 4 is arranged to move relative to the loading mechanism 5. A first flattening drive mechanism 2 is also provided to drive the flattening mechanism 4 to move towards the loading mechanism 5, so that the mouth of the rolled-edge paper cup 103 on the loading mechanism 5 is fitted onto the flattening mechanism 4 for flattening. Alternatively, the flattening mechanism 4 can be driven to move backward away from the loading mechanism 5, so that the flattened paper cup is detached from the flattening mechanism 4. This, in conjunction with the loading mechanism 5, completes the loading and unloading of the paper cup. A second flattening drive mechanism 3 is also provided to individually drive the second flattening module 43 of the flattening mechanism 4 in connection with the sleeve 41. The device moves inward and utilizes the linkage between the first flattening module 42 and the second flattening module 43. When the second flattening module 43 extends forward, it drives the first flattening module 42 to rotate inward and retract synchronously to cooperate with the second flattening module 43 to flatten the rolled edge 112 of the cup mouth into a rolled part 113. Alternatively, when the second flattening module 43 retracts backward, it drives the first flattening module 42 to rotate outward synchronously to make way for the feeding of the pre-flattened paper cup 102. The overall action is reliable and efficient, with good coordination between the feeding and flattening of the paper cup and the flattening operation, resulting in excellent flattening effect.

[0045] As a preferred option, such as Figure 7-9As shown, the second flattening module 43 includes a sleeve portion 431 and a sleeve shaft portion 433. The sleeve shaft portion 433 is slidably sleeved inside the connecting sleeve 41, and its front end is connected to the sleeve portion 431. The front end of the sleeve portion 431 has a connector 4311 adapted to the shape of the inner ring of the cup mouth of the rolled-edge paper cup 103. A planar second flattening ring surface 430 is provided around the outer ring of the end of the connector 4311. The rolled-edge paper cup 103 is sleeved on the connector 4311, and its rolled edge portion 112 abuts against the second flattening ring surface 430. The first flattening module 42 has a first flattening ring surface 420 that matches the second flattening ring surface 430. The first flattening module 42 is composed of a plurality of circumferential arrays and divides the first flattening ring surface 420 into a plurality of The first flattening module 421 is composed of an arc segment. The rear end of the first flattening module 421 is hinged to the connecting sleeve 41. A contact part 4210 protrudes from the side of the middle part facing the sleeve shaft part 433 and abuts against the sleeve shaft part 433. An elastic element 4211 is connected between the side of the middle part away from the sleeve shaft part 433 and the connecting sleeve 41. The part of the sleeve shaft part 433 that abuts against the contact part 4210 is a variable diameter part 434 whose diameter gradually decreases from front to back. When the second flattening module 43 performs reciprocating horizontal movement, it drives each of the first flattening modules 421 to rotate outward synchronously to make way for the feeding of the rolled paper cup 103, or to rotate inward synchronously to close in order to cooperate with the second flattening ring surface 430 to flatten and form the rolled part 113.

[0046] In this embodiment, a planar second flattening ring surface 430 is provided around the outer ring of the socket 4311 terminal of the second flattening module 43, and a first flattening ring surface 420 is matched and provided on the first flattening module 42. When the first flattening ring surface 420 is spliced ​​and closed with the second flattening ring surface 430, the rolled edge portion 112 pre-placed in the second flattening ring surface 430 is squeezed. In this embodiment, the second flattening ring surface 430 flattens the arc surface of the rolled edge portion 112 facing the cup mouth, and the first flattening ring surface 420 flattens the arc surface of the rolled edge portion 112 away from the cup mouth and the arc surface along the circumference of the cup mouth, forming a shape as shown in the figure. Figure 4 The compression section 113 is shown in the right-hand figure.

[0047] It should be noted that the first flattening module 42 is composed of several circumferentially arrayed first flattening modules 421. Each first flattening module 421 is hinged to the connecting sleeve 41 and elastically abuts against the variable diameter part 434 of the sleeve shaft part 433 in the second flattening module 43. When the second flattening module 43 retracts backward, it drives each first flattening module 421 to rotate and spread out, thereby making room for the cup feeding. When the second flattening module 43 extends forward, it drives each first flattening module 421 to rotate and close, so that the first flattening ring surface 420 and the second flattening ring surface 430 cooperate to complete the flattening operation. The structure is ingenious. By arraying multiple first flattening modules 421, not only is the feeding problem of the paper cup to be processed solved, but it also enables the entire rolled edge part 112 to be flattened at the same time during flattening, achieving efficient and rapid completion of the flattening operation.

[0048] As a preferred option, combined with Figure 10-12 As shown, the first flattening module 421 includes a connecting rod portion 422 and a claw head 423. The rear end of the connecting rod portion 422 is hinged to the connecting sleeve 41, and the front end is connected to the claw head 423. The abutting portion 4210 and the elastic element 4211 are both disposed on the connecting rod portion 422. When the second flattening module 43 moves toward the material loading mechanism 5, the abutting portion 4210 slides to the small diameter section of the variable diameter portion 434, thereby causing each of the first flattening modules 421 to retract inward and splice together so that the first flattening ring surface 420 and the second flattening ring surface 430 are directly aligned and engaged. When the second flattening module 43 moves away from the material loading mechanism 5, the abutting portion 4210 slides to the large diameter section of the variable diameter portion 434, thereby causing each of the first flattening modules 421 to open outward and separate so that the first flattening ring surface 420 and the second flattening ring surface 430 are separated.

[0049] As a preferred implementation method, such as Figure 7 As shown, the first flattening module 421 is provided with 4 sets.

[0050] Preferably, the front end of the sleeve shaft portion 433 extends out of the connecting sleeve 41 and is connected to the sleeve portion 431, and the rear end of its shaft extends out of the connecting sleeve 41 and is connected to the second flattening drive mechanism 3.

[0051] Example 2

[0052] The components in this embodiment that are the same as or corresponding to those in the above embodiments are referred to by the same reference numerals as those in the above embodiments. For the sake of simplicity, only the differences between this embodiment and the above embodiments are described below. The difference between this embodiment and the above embodiments is that:

[0053] As a preferred option, such as Figure 2 , 5As shown, the first flattening drive mechanism 2 includes a sliding part 21, which is slidably mounted on the base 1 and slides linearly relative to the material loading mechanism 5. The connecting sleeve 41 is mounted on the sliding part 21. It also includes a first flattening drive assembly 22, which drives the sliding part 21 to slide.

[0054] Preferably, the base 1 is provided with a linear guide rail, and the bottom of the sliding part 21 is provided with a slider that is slidably mounted on the linear guide rail.

[0055] Preferably, the first flattening drive assembly 22 is configured as a cam drive structure, which includes a flattening drive shaft 221 vertically rotatably mounted on the base 1. The bottom input end of the flattening drive shaft 221 is connected to an external power source to obtain rotational power, and the top output end is connected to a cam part 222. The top surface of the cam part 222 is recessed with an annular cam groove 220. The sliding part 21 includes a protrusion 210 limited within the cam groove 220. As the cam part 222 rotates, the protrusion 210 is guided by the trajectory of the cam groove 220 to move back and forth.

[0056] As a preferred option, such as Figure 13 As shown, the cam groove 220 is eccentrically arranged relative to the cam portion 222 and has a symmetrical structure. It includes a first retaining section 2201 and a second retaining section 2202 arranged opposite each other with different radii. It also includes two oppositely arranged variable diameter sections 2203. The variable diameter section 2203 is connected between the first retaining section 2201 and the second retaining section 2202. When the cam portion 222 rotates to the point where its first retaining section 2201 or its second retaining section 2202 engages with the protrusion 210, the sliding portion 21 remains stationary. When the cam portion 222 rotates to the point where its variable diameter section 2203 engages with the protrusion 210, it guides and drives the sliding portion 21 to slide linearly.

[0057] In this embodiment, through the above-mentioned structural arrangement of the cam groove 220, during the rotation of the cam part 222, the cam groove 220 limits the protrusion 210, driving the sliding part 21 to move back and forth reciprocally, which can cooperate to perform continuous assembly line-style edge rolling and flattening operations. Moreover, the installation layout of the first flattening drive mechanism 2 in the base 1 is compact and reasonable, and the components are installed in separate chambers and cooperate reasonably, so the driving action is stable and reliable.

[0058] Example 3

[0059] The components in this embodiment that are the same as or corresponding to those in the above embodiments are referred to by the same reference numerals as those in the above embodiments. For the sake of simplicity, only the differences between this embodiment and the above embodiments are described below. The difference between this embodiment and the above embodiments is that:

[0060] As a preferred option, such as Figure 5-7 As shown, the second flattening drive mechanism 3 includes a second flattening drive part 31 mounted on the base 1. The rotation drive end of the second flattening drive part 31 is eccentrically connected to an output shaft part 32. It also includes a drive connection part 33. The top surface of the drive connection part 33 is provided with a limiting groove 331. The shaft end of the output shaft part 32 is limited and disposed in the limiting groove 331. The width dimension of the limiting groove 331 in the front-back direction is adapted to the dimension of the output shaft part 32. When the second flattening drive part 31 rotates, it drives the drive connection part 33 to move back and forth through the output shaft part 32. The drive connection part 33 is connected to the second flattening module 43.

[0061] As a supplementary explanation, the output shaft part 32 includes an output part. The top of one side of the output part is connected to the output end of the second flattening drive part 31, and the bottom of the other side is connected to a bearing to form an eccentric structure. The bearing is limited and installed in the limiting groove 331. The eccentric shaft drive structure enables the second flattening module 43 to reciprocate and extend when the second flattening drive part 31 rotates continuously, which is suitable for assembly line continuous flattening operations.

[0062] In a preferred embodiment, the second flattening drive unit 31 is configured as a rotary motor.

[0063] Preferably, the length of the limiting groove 331 in the left-right direction is greater than the size of the output shaft portion 32 to allow for the eccentric rotation of the output shaft portion 32.

[0064] As a preferred option, such as Figure 6 As shown, a guide rod 34 is provided at the rear end of the connecting sleeve 41, and the driving connection part 33 is slidably guided and installed on the guide rod 34.

[0065] It should be noted that the base 1 includes a lower half for mounting the first flattening drive mechanism 2 and an upper half for mounting the second flattening drive unit 31. The upper half is slidably disposed relative to the lower half, so that when the first flattening drive mechanism 2 drives the flattening mechanism 4 to move as a whole relative to the material loading mechanism 5, it drives the second flattening drive mechanism 3 and the upper half of the base 1 to move synchronously.

[0066] Work process:

[0067] The second flattening drive mechanism 3 drives the second flattening module 43 to slide and retract within the connecting sleeve 41, and simultaneously drives the first flattening module 42 to open outward to make room. The first flattening drive mechanism 2 drives the flattening mechanism 4 to move towards the material loading mechanism 5, so that the pre-flattened paper cup 102 on the material loading mechanism 5 is fitted onto the sleeve 4311 and its pre-wound portion 111 is placed within the second flattening ring surface 430. The second flattening drive mechanism 3 drives the second flattening module 43 to slide and extend within the connecting sleeve 41, and simultaneously drives the first flattening module 42 to retract inward, so that the first flattening ring surface 420 and the second flattening ring surface 430 are aligned and closed, thereby flattening the rolled edge portion 112 into a rolled portion 113.

[0068] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flattening mechanism, characterized in that, The system includes a base (1), on which a first flattening drive mechanism (2) and a second flattening drive mechanism (3) are mounted. It also includes a flattening mechanism (4) and a material loading mechanism (5) positioned opposite the flattening mechanism (4). The flattening mechanism (4) includes a connecting sleeve (41), a first flattening module (42) mounted on the connecting sleeve (41), and a second flattening module (43) slidably fitted within the connecting sleeve (41). The connecting sleeve (41) is mounted on the first flattening drive mechanism (2) and is driven by the first flattening drive mechanism (2) to move relative to the material loading mechanism (5). The second flattening module (43) is connected to the second flattening drive mechanism (3) and is driven by the second flattening drive mechanism (3) to perform a reciprocating flattening operation relative to the connecting sleeve (41). The loading mechanism (5) is loaded with a rolled-edge paper cup (103). The flattening mechanism (4) moves towards the loading mechanism (5) so that the rolled-edge paper cup (103) is fitted onto the second flattening module (43) with its cup mouth. The first flattening module (42) and the second flattening module (43) work together to flatten the rolled edge (112) of the cup mouth into a rolled part (113).

2. The flattening mechanism according to claim 1, characterized in that, The second flattening module (43) includes a sleeve part (431) and a sleeve shaft part (433). The sleeve shaft part (433) is slidably sleeved in the connecting sleeve (41), and its front end is connected to the sleeve part (431). The front end of the sleeve part (431) has a sleeve connector (4311) that is adapted to the inner ring shape of the cup mouth of the rolled edge paper cup (103). The outer ring of the end of the sleeve connector (4311) is provided with a planar second flattening ring surface (430). The rolled edge paper cup (103) is sleeved on the sleeve connector (4311) and its rolled edge part (112) abuts against the second flattening ring surface (430). The first flattening module (42) has a first flattening annular surface (420) that matches the second flattening annular surface (430). The first flattening module (42) is composed of several first flattening modules (421) arranged in a circumferential array and dividing the first flattening annular surface (420) into several arc segments. The rear end of the first flattening module (421) is hinged to the connecting sleeve (41), and a contact part (4210) protrudes from the side of the middle part facing the sleeve shaft part (433) to abut against the sleeve shaft part (433). The middle part is away from the sleeve shaft part (433). An elastic element (4211) is provided between one side of the sleeve (433) and the connecting sleeve (41). The part of the sleeve shaft (433) that abuts against the contact part (4210) is a variable diameter part (434) whose diameter gradually decreases from front to back. When the second flattening module (43) performs reciprocating horizontal movement, it drives each first flattening module (421) to rotate outward synchronously to make way for the feeding of the rolled paper cup (103), or to rotate inward synchronously to cooperate with the second flattening ring surface (430) to flatten and form the rolled part (113).

3. The flattening mechanism according to claim 2, characterized in that, The first flattening module (421) includes a connecting rod (422) and a claw head (423). The rear end of the connecting rod (422) is hinged to the connecting sleeve (41), and the front end is connected to the claw head (423). The abutting part (4210) and the elastic element (4211) are both disposed on the connecting rod (422). When the second flattening module (43) moves toward the loading mechanism (5), the abutting part (4210) slides to the variable diameter part (423). 34) The small diameter section, whereby each of the first flattening modules (421) is brought together inward so that the first flattening ring surface (420) and the second flattening ring surface (430) are aligned and fitted. When the second flattening module (43) moves away from the material loading mechanism (5), the contact part (4210) slides to the large diameter section of the variable diameter part (434), whereby each of the first flattening modules (421) opens outward and separates so that the first flattening ring surface (420) and the second flattening ring surface (430) are separated.

4. The flattening mechanism according to claim 3, characterized in that, The front end of the sleeve shaft (433) extends out of the connecting sleeve (41) and is connected to the sleeve shaft (431), and the rear end of the shaft extends out of the connecting sleeve (41) and is connected to the second flattening drive mechanism (3).

5. The flattening mechanism according to claim 1, characterized in that, The first flattening drive mechanism (2) includes a sliding part (21), which is slidably mounted on the base (1) and slides linearly relative to the material loading mechanism (5). The connecting sleeve (41) is mounted on the sliding part (21). The first flattening drive assembly (22) drives the sliding part (21) to slide.

6. A flattening mechanism according to claim 5, characterized in that, The first flattening drive assembly (22) is configured as a cam drive structure, which includes a flattening drive shaft (221) that is vertically rotatably mounted on the base (1). The bottom input end of the flattening drive shaft (221) is connected to an external power source to obtain rotational power, and the top output end is connected to a cam part (222). The top surface of the cam part (222) is recessed with an annular cam groove (220). The sliding part (21) includes a protrusion (210) that is limited to the cam groove (220). As the cam part (222) rotates, the protrusion (210) is guided by the trajectory of the cam groove (220) to move back and forth.

7. A flattening mechanism according to claim 6, characterized in that, The cam groove (220) is eccentrically arranged relative to the cam portion (222) and has a symmetrical structure. It includes a first retaining section (2201) and a second retaining section (2202) arranged opposite each other with different radii. It also includes two oppositely arranged variable diameter sections (2203). The variable diameter section (2203) is connected between the first retaining section (2201) and the second retaining section (2202). When the cam portion (222) rotates to the point where its first retaining section (2201) or second retaining section (2202) engages with the protrusion (210), the sliding portion (21) remains stationary. When the cam portion (222) rotates to the point where its variable diameter section (2203) engages with the protrusion (210), it guides and drives the sliding portion (21) to slide linearly.

8. The flattening mechanism according to claim 1, characterized in that, The second flattening drive mechanism (3) includes a second flattening drive part (31) mounted on the base (1). The rotation drive end of the second flattening drive part (31) is eccentrically connected to an output shaft part (32). It also includes a drive connection part (33). The top surface of the drive connection part (33) is provided with a limiting groove (331). The shaft end of the output shaft part (32) is limited and set in the limiting groove (331). The width dimension of the limiting groove (331) in the front-back direction is adapted to the size of the output shaft part (32). When the second flattening drive part (31) rotates, it drives the drive connection part (33) to move back and forth through the output shaft part (32). The drive connection part (33) is connected to the second flattening module (43).

9. A flattening mechanism according to claim 8, characterized in that, The length of the limiting groove (331) in the left-right direction is greater than the size of the output shaft (32) to allow for the eccentric rotation of the output shaft (32).

10. A flattening mechanism according to claim 8, characterized in that, The rear end of the connecting sleeve (41) is provided with a guide rod (34), and the driving connection part (33) is slidably guided and installed on the guide rod (34).

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