Bottom forming mechanism of paper cup machine

Abstract

The utility model relates to the field of paper cup machine equipment, and discloses a bottom forming mechanism of a paper cup machine, which comprises a rack and a forming plate, a bottom rolling component and a knurling component are mounted on the forming plate, a rotary power source is mounted on the rack and is in transmission connection with a driving wheel, and the rotary power source drives the driving wheel to rotate. The bottom rolling assembly comprises a bottom rolling driven wheel arranged at the bottom, the knurling assembly comprises a knurling driven wheel arranged at the bottom, the bottom rolling driven wheel and the knurling driven wheel are in linkage with the driving wheel, and the forming plate is connected with a lifting power source driving the forming plate to do lifting motion. The rolling effect can be improved through the rotary rolling bottom, the cup bottom is uniform in the circumferential direction after being rolled and formed, the quality is stable, and the percent of pass of products can be improved. A rotating power source is generally a servo motor capable of driving a rotating shaft to rotate, the motor is adopted for independent control, and due to the fact that the bottom rolling mechanism is independently provided with the rotating power source, the transmission load pressure of the whole machine can be relieved in transmission, and the effect that the rolling and pressing time can be independently adjusted is achieved.

Description

Technical Field

[0001] The utility model relates to the field of paper cup machine equipment, in particular to a bottom forming mechanism of a paper cup machine. Background Art

[0002] The vertical paper cup forming machines on the market today often use the method of pressing the cup body up and down to form the bottom of the paper cup by rolling the bottom and knurling. This method is prone to shape deviation during forming, the cup bottom is unstable, and the cup often falls off during production. The bottom forming is also uneven, and the quality of the cup body forming is difficult to control. In the prior art, the bottom rolling component and the knurling component are separately set, and the two are processed separately, which easily leads to inconsistent steps of the previous and next processes, affecting the forming quality of the cup body. Summary of the invention

[0003] The utility model aims at the shortcomings of the prior art, such as poor bottom rolling and knurling uniformity and poor production synchronization, and provides a bottom forming mechanism for a paper cup machine.

[0004] To solve the above technical problems, the utility model is solved by the following technical solutions:

[0005] The bottom forming mechanism of the paper cup machine includes a frame and a forming plate. The forming plate is equipped with a bottom rolling assembly and a knurling assembly. A rotating power source is installed on the frame. The rotating power source is connected to a driving wheel through a transmission. The rotating power source drives the driving wheel to rotate. The bottom rolling assembly includes a bottom rolling driven wheel arranged at the bottom. The knurling assembly includes a knurled driven wheel arranged at the bottom. The bottom rolling driven wheel and the knurled driven wheel are respectively linked with the driving wheel. The forming plate is connected to a lifting power source that drives the lifting movement thereof. The rotating bottom rolling can improve the rolling effect, so that the circumferential direction of the cup bottom is uniform after the bottom rolling is formed, and the quality is stable, which is conducive to improving the qualified rate of the product. The rotating power source is generally a servo motor that can drive the rotating shaft to rotate, and the motor is independently controlled. Since the bottom rolling mechanism is independently equipped with a rotating power source, the transmission load pressure of the whole machine can be reduced from the transmission point of view, and the rolling and pressing time can be independently adjusted.

[0006] As a preference, it also includes one or more intermediate transmission wheels, the driving wheel, the intermediate transmission wheel, the bottom rolling driven wheel, and the knurling driven wheel are all spur gears, the driving wheel meshes with the intermediate transmission wheel and drives the intermediate transmission wheel to rotate, the bottom rolling driven wheel and the knurling driven wheel mesh with the intermediate transmission wheel respectively, and the intermediate transmission wheel drives the bottom rolling driven wheel and the knurling driven wheel to rotate. Through the transmission, the rotation of the molds of the bottom rolling assembly and the knurling assembly can be synchronized, thereby improving the synchronization of the equipment in the production of paper cups at each station and improving production efficiency.

[0007] Preferably, the bottom rolling assembly comprises a rotating shaft, the bottom rolling driven wheel is installed at the bottom of the rotating shaft, and a bottom rolling mold is fixedly installed on the top of the rotating shaft.

[0008] Preferably, the top of the bottom rolling mold is provided with an annular groove for the bottom of the cup body to extend into, and the bottom surface of the annular groove is an arc surface with an opening upward. The bottom of the outer paper tube is folded inward along the annular groove, and the annular groove can better protect the paper coating of the cup body and reduce scratches on the outer coating of the paper cup.

[0009] Preferably, the bottom rolling assembly further comprises an adjusting seat, which is fixedly mounted on the forming plate, and a bearing sleeve is sleeved on the outer wall of the rotating shaft, and the bearing sleeve is mounted in the adjusting seat.

[0010] Preferably, the rotating shaft is axially rotatable in the bearing sleeve, and the bearing sleeve is fixed on the rotating shaft by a locking nut.

[0011] Preferably, a plurality of guide sleeves are installed on the frame, and a guide column is installed at the bottom of the forming plate. The guide column is inserted into the guide sleeve, and the lifting power source is connected to the guide column and drives the guide column to move up and down along the guide sleeve. The lifting movement of the forming plate drives the bottom rolling mold and the knurling mold to rise and fall synchronously, which also improves the synchronization of the equipment for the production of paper cups at each station.

[0012] Preferably, the knurling assembly includes a knurling mounting seat fixed on the forming plate, a knurling die is mounted on the knurling mounting seat, and the knurling die and the knurling driven wheel rotate synchronously through the transmission shaft. Knurling is a device used to press the bottom of the paper cup after rolling, and the pattern pressed out by the rotary rolling method is more beautiful and neat.

[0013] The utility model has significant technical effects due to the adoption of the above technical solutions: the rotary rolling bottom can better protect the paper coating of the cup body and provide a better rolling effect, and the rotary knurling process can also make the pattern rolled out of the cup bottom more neat and beautiful. The rotation of the two realizes linkage, which can make the overall thickness and pattern of the cup bottom very uniform, thereby improving the quality of paper cup forming. Compared with the prior art, there is no need to set up a lifting power source for the rolling bottom assembly, the overall synchronization of the equipment is better, and the manufacturing cost and production cost are also saved. At the same time, through the linkage of the workstations of the rolling bottom assembly and the knurling assembly, the coordination of the equipment can be improved, the processing accuracy is better, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the utility model from another angle.

[0016] Figure 3 It is a longitudinal cross-sectional view of the roll bottom assembly.

[0017] The names of the parts indicated by the numerical labels in the above drawings are as follows: Among them, 1, frame; 11, guide sleeve; 2, forming plate; 21, guide column; 3, bottom rolling assembly; 31, bottom rolling driven wheel; 32, rotating shaft; 33, bottom rolling mold; 331, groove; 34, adjustment seat; 35, bearing sleeve; 36, locking nut; 4, knurling assembly; 41, knurling driven wheel; 42, knurling mounting seat; 43, knurling mold; 5, rotating power source; 51, driving wheel; 6, transmission intermediate wheel. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] Example 1

[0020] The bottom forming mechanism of the paper cup machine, such as Figure 1 As shown, it includes a frame 1 and a forming plate 2, a bottom rolling assembly 3 and a knurling assembly 4 are installed on the forming plate 2, a rotating power source 5 is installed on the frame 1, and the rotating power source 5 is connected to a driving wheel 51, and the rotating power source 5 drives the driving wheel 51 to rotate, the bottom rolling assembly 3 includes a bottom rolling driven wheel 31 arranged at the bottom, and the knurling assembly 4 includes a knurling driven wheel 41 arranged at the bottom, and the bottom rolling driven wheel 31 and the knurling driven wheel 41 are respectively linked with the driving wheel 51, and the forming plate 2 is connected to a lifting power source that drives its lifting movement. The rotating bottom rolling assembly 3 can make the bottom of the outer paper tube fold inward and contact with the side of the cup bottom inside it more fully, so that the connection between the outer paper tube and the cup bottom is more uniform.

[0021] like Figure 2 As shown, it also includes one or more transmission intermediate wheels 6. The driving wheel 51, the transmission intermediate wheel 6, the winding bottom driven wheel 31, and the knurled driven wheel 41 are all spur gears. The driving wheel 51 meshes with the transmission intermediate wheel 6 and drives the transmission intermediate wheel 6 to rotate. The winding bottom driven wheel 31 and the knurled driven wheel 41 are respectively meshed with the transmission intermediate wheel 6, and the transmission intermediate wheel 6 drives the winding bottom driven wheel 31 and the knurled driven wheel 41 to rotate.

[0022] like Figure 3 As shown, the bottom rolling assembly 3 includes a rotating shaft 32, a bottom rolling driven wheel 31 is installed at the bottom of the rotating shaft 32, and a bottom rolling mold 33 is fixedly installed on the top of the rotating shaft 32. The bottom rolling assembly 3 also includes an adjustment seat 34, which is fixedly installed on the forming plate 2. The outer wall of the rotating shaft 32 is sleeved with a bearing sleeve 35, and the bearing sleeve 35 is installed in the adjustment seat 34. The rotating shaft 32 can rotate axially on the bearing sleeve 35, and the bearing sleeve 35 is fixed to the rotating shaft 32 through a locking nut 36.

[0023] The top of the bottom rolling mold 33 is provided with an annular groove 331 for the bottom of the cup body to extend into, and the bottom surface of the annular groove 331 is an arc surface with an opening facing upward.

[0024] A plurality of guide sleeves 11 are installed on the frame 1, and a guide column 21 is correspondingly installed at the bottom of the forming plate 2. The guide column 21 is inserted into the guide sleeve 11, and the lifting power source is connected to the guide column 21 and drives the guide column 21 to move up and down along the guide sleeve 11 at the same time.

[0025] The knurling assembly 4 includes a knurling mounting seat 42 fixed on the forming plate 2, a knurling die 43 is mounted on the knurling mounting seat 42, and the knurling die 43 and the knurling driven wheel 41 rotate synchronously through the transmission shaft.

[0026] Working principle: After the paper sheets are wrapped and formed into a conical outer tube, the bottom of the paper cup needs to be sealed. Generally, the cup bottom needs to be pushed and the outer tube is put on the outer wall of the cup bottom for forming. First, the cup bottom that has been preheated is sent to the cup mold, and the outer tube is placed on the cup mold with the existing cup bottom, and then the bottom is rolled and knurled. The rolled bottom is connected to the edge of the cup bottom by folding the bottom of the outer tube inward, and then the outer tube and the cup bottom are bonded together by knurling. Finally, after forming, the turntable is turned to the cup discharge position to discharge the cup, so as to combine the outer tube and the cup bottom through knurling.

[0027] A transfer device for obtaining and placing the cup body will be provided above the frame 1, and the transfer device will rotate relative to the frame 1, so that the cup body can be transferred between workstations through the transfer device. The forming plate 2 is raised and lowered driven by the lifting power source, and the cup body on the bottom rolling component 3 and the knurling component 4 can be lifted for the transfer device to obtain. Through the rotation of the transfer device, the obtained cup body is transferred to the next workstation, and then the forming plate 2 descends for the next processing. The bottom rolling component 3 and the knurling component 4 are installed on the forming plate 2. After the processing of the cup body on the bottom rolling component 3 is completed, the forming plate 2 descends and the transfer device rotates to send the cup body with the bottom rolled to the knurling component. The forming plate 2 rises, the transfer device, and then the cup bottom is knurled, and this cycle is repeated.

[0028] The bottom rolling component 3 and the knurling component 4 both have corresponding cup bottoms that need to be processed. The rotating power source 5 drives the driving wheel 51 to rotate, and the bottom rolling driven wheel 31 and the knurling driven wheel 41 linked with the driving wheel 51 are driven to rotate the upper mold respectively. The speed of rotation depends on the transmission ratio between the bottom rolling driven wheel 31 and the knurling driven wheel 41 and the transmission intermediate wheel 6 respectively, and the transmission ratio between the transmission intermediate wheel 6 and the driving wheel 51. The molding plate 2 is connected to a lifting power source that drives its lifting movement, so that the molds on the bottom rolling component 3 and the knurling component 4 can process their respective cup bodies synchronously. Compared with the prior art, there is no need to set up a lifting power source for the bottom rolling component separately, the overall synchronization of the equipment is better, and the manufacturing cost and production cost are also saved.

[0029] When the bottom rolling assembly 3 is working, the forming plate 2 rises, and the bottom rolling mold 33 rises, and is squeezed with the outer paper tube of the cup bottom that has been preliminarily formed on the transfer device. The rotating shaft 32 can rotate axially in the bearing sleeve 35, and is used to fold the cup bottom and the outer paper tube of the cone tube upward along the outer groove wall of the arc-shaped groove of the bottom rolling mold 33 at the same time. The annular groove 331 of the bottom rolling mold 33 forms a concave cavity with a low outside and a high inside at the bottom of the cup bottom. The bottom rolling driven wheel 31 drives the rotating shaft 32 to rotate, and the bottom rolling mold 33 rotates accordingly, so that the bottom rolling is better formed. The adjustment seat 34 is fixedly installed on the forming plate 2, and the outer wall of the rotating shaft 32 is sleeved with a bearing sleeve 35, which is installed in the adjustment seat 34, and the bearing sleeve 35 is fixed to the rotating shaft 32 by a locking nut 36. It is convenient to adjust the height of the bottom rolling mold 33. The mold of the knurling assembly is a mature technical solution known to those skilled in the art, and will not be elaborated here.

[0030] In the description of the present utility model, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A bottom forming mechanism of a paper cup machine, comprising a frame (1) and a forming plate (2), wherein a bottom rolling assembly (3) and a knurling assembly (4) are mounted on the forming plate (2), and a rotating power source (5) is mounted on the frame (1), wherein the rotating power source (5) is connected to a driving wheel (51) in a transmission manner, and the rotating power source (5) drives the driving wheel (51) to rotate, and the characteristics are: The bottom rolling assembly (3) comprises a bottom rolling driven wheel (31) arranged at the bottom, and the knurling assembly (4) comprises a knurling driven wheel (41) arranged at the bottom. The bottom rolling driven wheel (31) and the knurling driven wheel (41) are respectively linked to the driving wheel (51), and the forming plate (2) is connected to a lifting power source that drives the forming plate (2) to move upward and downward.

2. The bottom forming mechanism of the paper cup machine according to claim 1, characterized in that: The invention also comprises one or more intermediate transmission wheels (6); the driving wheel (51), the intermediate transmission wheel (6), the bottom winding driven wheel (31), and the knurled driven wheel (41) are all spur gears; the driving wheel (51) meshes with the intermediate transmission wheel (6) and drives the intermediate transmission wheel (6) to rotate; the bottom winding driven wheel (31) and the knurled driven wheel (41) respectively mesh with the intermediate transmission wheel (6); the intermediate transmission wheel (6) drives the bottom winding driven wheel (31) and the knurled driven wheel (41) to rotate.

3. The bottom forming mechanism of the paper cup machine according to claim 1, characterized in that: The bottom rolling assembly (3) comprises a rotating shaft (32), a bottom rolling driven wheel (31) is mounted at the bottom of the rotating shaft (32), and a bottom rolling mould (33) is fixedly mounted at the top of the rotating shaft (32).

4. The bottom forming mechanism of the paper cup machine according to claim 3, characterized in that: The top of the bottom rolling mould (33) is provided with an annular groove (331) for the bottom of the cup body to extend into, and the bottom surface of the annular groove (331) is an arc surface with an opening facing upward.

5. The bottom forming mechanism of the paper cup machine according to claim 3, characterized in that: The bottom rolling assembly (3) further comprises an adjusting seat (34), the adjusting seat (34) being fixedly mounted on the forming plate (2), the outer wall of the rotating shaft (32) being provided with a bearing sleeve (35), and the bearing sleeve (35) being mounted in the adjusting seat (34).

6. The bottom forming mechanism of the paper cup machine according to claim 5, characterized in that: The rotating shaft (32) can rotate axially on the bearing sleeve (35), and the bearing sleeve (35) is fixed on the rotating shaft (32) by a locking nut (36).

7. The bottom forming mechanism of the paper cup machine according to claim 1, characterized in that: A plurality of guide sleeves (11) are mounted on the frame (1), and a guide column (21) is mounted correspondingly on the bottom of the forming plate (2). The guide column (21) is inserted into the guide sleeve (11), and a lifting power source is connected to the guide column (21) in a transmission manner and simultaneously drives the guide column (21) to move up and down along the guide sleeve (11).

8. The bottom forming mechanism of the paper cup machine according to claim 1, characterized in that: The knurling assembly (4) comprises a knurling mounting seat (42) fixed on the forming plate (2), a knurling die (43) being mounted on the knurling mounting seat (42), and the knurling die (43) and the knurling driven wheel (41) rotate synchronously via a transmission shaft.

Images