Conical paper bowl curling machine

Abstract

The present invention discloses a conical paper bowl curling forming machine, comprising a machine base, characterized in that: a turntable is provided on the machine base, a plurality of circumferentially distributed forming lower molds are provided on the turntable, and a bowl feeding mechanism, a bowl pressing mechanism, a straight edge mechanism, a curling mechanism and a bowl discharging mechanism are sequentially arranged on the rotation path of the forming lower mold; the forming lower mold comprises a fixed mold and a movable mold, the fixed mold has a cavity matching to accommodate the conical paper bowl, and the bowl mouth is exposed in the cavity, the movable mold is annular, and can be lifted and moved and sleeved on the outer periphery of the fixed mold, and the corresponding movable mold is equipped with a lifting guide rod, and the lifting guide rod is penetrated on the turntable. The present invention has a reasonable structure and stable operation, and realizes the curling forming of the bowl mouth of the conical paper bowl.

Description

Technical Field

[0001] The invention relates to an improved invention in the field of paper bowl forming, and in particular to an improved invention of a conical paper bowl curling forming machine. Background Art

[0002] Most existing paper bowls are cylindrical in structure, and cylindrical paper bowls can be connected to each other, so the outer circle of the cylindrical paper bowl has a little taper. At the same time, in order to enhance the structural strength of the cylindrical paper bowl and improve practicality, the bowl mouth of the cylindrical paper bowl is usually provided with a curling edge. In order to increase the capacity of the paper bowl and make it easier to hold, the taper of the outer circle of the paper bowl can be increased. However, when the taper is increased, it will cause trouble for the curling edge of the bowl mouth, and the original equipment will not be able to adapt. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a conical paper bowl curling forming machine with reasonable structure and stable operation.

[0004] In order to solve the above technical problems, the present invention is implemented by adopting the following technical scheme: the conical paper bowl curling forming machine includes a machine base, characterized in that: a turntable is provided on the machine base, a plurality of circumferentially distributed forming lower molds are provided on the turntable, and a bowl feeding mechanism, a bowl pressing mechanism, a straight edge mechanism, a curling mechanism and a bowl discharging mechanism are sequentially arranged on the rotation path of the forming lower mold; the forming lower mold includes a fixed mold and a movable mold, the fixed mold has a cavity matching to accommodate the conical paper bowl, and the bowl mouth is exposed in the cavity, the movable mold is annular, and can be lifted and moved and sleeved on the outer periphery of the fixed mold, and the corresponding movable mold is equipped with a lifting guide rod, and the lifting guide rod is passed through the turntable.

[0005] The bowl delivery mechanism comprises a conveyor belt and a transfer robot, and the transfer robot is connected between the conveyor belt and the turntable to transfer the paper bowl.

[0006] The bowl pressing mechanism comprises a pressing plate capable of lifting and lowering, and the pressing plate is pressed and matched with the bowl mouth to press the paper bowl down to fit into the cavity of the fixed mold.

[0007] The straight edge mechanism includes a straight edge mold that can be raised and lowered. The straight edge mold has a cylindrical straight edge portion and a conical surface pressing portion distributed up and down. The conical surface pressing portion cooperates with the cavity of the fixed mold to position the paper bowl, and the cylindrical straight edge portion cooperates with the annular movable mold to form the straight edge of the bowl mouth. The corresponding machine base is provided with a movable mold lifting and driving push rod.

[0008] The curling mechanism includes a curling mold that can be raised and lowered and a paper pressing mold that can be elastically extended and arranged in the lower concave cavity of the curling mold. The curling mold and the movable mold are provided with an upper curling groove and a lower curling groove that cooperate with each other. The corresponding machine base is provided with a movable mold lifting drive cylinder. The cavity of the paper pressing mold and the fixed mold cooperate with each other to position the paper bowl, and the outer circle of the paper pressing mold supports the inner side of the bowl mouth.

[0009] A section of convex rail is arranged on the machine base corresponding to the straight edge mechanism and the curling mechanism, and the convex rail cooperates with the lower end support of the lifting guide rod and maintains the movable mold of this section at a high position.

[0010] The beneficial effects of the present invention are that the improved conical paper bowl curling forming machine has a reasonable structural arrangement, stable operation and fast forming. By sequentially arranging a bowl feeding mechanism, a bowl pressing mechanism, a straight edge mechanism, a curling mechanism and a bowl discharging mechanism on the rotating path of the lower forming mold, the paper bowl can be transferred to the cavity of the fixed mold, fitted into the cavity, the straight edge of the bowl mouth, the curling of the bowl mouth and the delivery of the paper bowl can be achieved respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0012] Figure 1 It is a schematic diagram of the structure of the present invention.

[0013] Figure 2 Another view of the structure of the present invention.

[0014] Figure 3 It is a structural diagram of the bowl pressing mechanism of the present invention.

[0015] Figure 4 It is a structural diagram of the straight edge mechanism of the present invention.

[0016] Figure 5 It is a structural diagram of the crimping mechanism of the present invention. DETAILED DESCRIPTION

[0017] The accompanying drawings show the structure of the present invention, and the following further describes its relevant details in conjunction with the accompanying drawings. Figure 1-5 The conical paper bowl curling forming machine includes a machine base 1, a turntable 2 is provided on the machine base 1, the turntable 2 is equipped with a rotating drive mechanism, a plurality of circumferentially distributed forming lower molds 3 are provided on the turntable 2, and a bowl feeding mechanism 4, a bowl pressing mechanism 5, a straight edge mechanism 6, a curling mechanism 7 and a bowl discharging mechanism 8 are sequentially arranged on the rotation path of the forming lower mold 3; the forming lower mold 3 includes a fixed mold 31 and a movable mold 32, the fixed mold 31 has a cavity 33 matching to accommodate the conical paper bowl, and the bowl mouth is exposed in the cavity 33, the movable mold 32 is annular, and can be lifted and moved and sleeved on the outer periphery of the fixed mold 31, and the corresponding movable mold 32 is equipped with a lifting guide rod 34, and the lifting guide rod 34 is penetrated on the turntable 2.

[0018] According to the working principle of the present invention, the lower forming mold 3 rotates at a uniform speed with the turntable 2, and passes through the bowl feeding mechanism 4, the bowl pressing mechanism 5, the straight edge mechanism 6, the curling mechanism 7 and the bowl discharging mechanism 8 in sequence. Specifically, in the first step, the bowl feeding mechanism 4 transfers the conical paper bowl to the cavity 33 of the fixed mold 31 of the lower forming mold 3; in the second step, the bowl pressing mechanism 5 presses the conical paper bowl down to fit the cavity 33 of the fixed mold 31; in the third step, the movable mold 32 rises and cooperates with the straight edge mechanism 6 to perform straight edge forming on the rim of the conical paper bowl; in the fourth step, the movable mold 32 descends and cooperates with the curling mechanism 7 to perform curling forming on the rim of the conical paper bowl; in the fifth step, the bowl feeding mechanism 4 takes the conical paper bowl out of the cavity 33 of the fixed mold 31 for external delivery.

[0019] As a further improved specific implementation method, see the attached Figure 1 The bowl delivery mechanism 4 includes a conveyor belt 41 and a transfer robot 42. The transfer robot 42 is connected between the conveyor belt 41 and the turntable 2 to transfer the paper bowl. Preferably, the transfer robot 42 includes a suction nozzle, which is driven to rise and fall by a lifting cylinder. The lifting cylinder is driven to move back and forth between the conveyor belt 41 and the turntable 2 by a synchronous wheel and synchronous belt. The bowl delivery mechanism 8 also includes such a transfer robot. When working, the conical paper bowls distributed at intervals on the conveyor belt 41 are sucked into the cavity 33 of the fixed mold 31 of the lower molding mold 3 on the turntable 2 by the suction nozzle through lifting and reciprocating movement.

[0020] As a further improved specific implementation method, see the attached Figure 3 The bowl pressing mechanism 5 includes a lifting and lowering pressing plate, which cooperates with the bowl mouth to press the paper bowl down to fit the cavity 33 of the fixed mold 31. Preferably, the pressing plate is driven to lift and lower by a cam connecting rod, and an oiling structure is provided on the pressing plate for oiling the bowl mouth of the paper bowl to cooperate with subsequent curling molding.

[0021] As a further improved specific implementation method, see the attached Figure 4 The straight edge mechanism 6 includes a straight edge mold 61 that can be raised and lowered. Preferably, the straight edge mold 61 is driven by a cam connecting rod. The straight edge mold 61 has a cylindrical straight edge portion 611 and a conical surface pressing portion 612 distributed up and down. The conical surface pressing portion 612 cooperates with the cavity 33 of the fixed mold 31 to position the paper bowl. The cylindrical straight edge portion 611 cooperates with the annular movable mold 32 to form the bowl mouth with straight edges. The corresponding machine base 1 is provided with a movable mold lifting driving push rod 62. During operation, the straight edge mold 61 moves downward, and its conical surface pressing portion 612 cooperates with the cavity 33 of the fixed mold 31 to press the paper bowl. Then the movable mold 32 is driven upward by the push rod to cooperate with the cylindrical straight edge portion 611 to form the bowl mouth with straight edges.

[0022] As a further improved specific implementation method, see the attached Figure 5The curling mechanism 7 includes a curling mold 71 that can be raised and lowered and a paper pressing mold 72 that can be elastically extended and arranged in the lower concave cavity of the curling mold 71. Specifically, the paper pressing mold 72 is connected to the lower concave cavity of the curling mold 71 through a spring. The curling mold 71 and the movable mold 32 are provided with an upper curling groove 73 and a lower curling groove 74 that match each other. The corresponding machine base 1 is provided with a movable mold 32 lifting and driving cylinder 75. The paper pressing mold 72 cooperates with the cavity 33 of the fixed mold 31 to position the paper bowl, and the outer circle of the paper pressing mold 72 supports the inner side of the bowl mouth. During operation, the movable mold 32 is maintained in a high position by the lifting drive cylinder 75, and then the curling mold 71 and the paper pressing mold 72 move downward. The paper pressing mold 72 cooperates with the cavity 33 of the fixed mold 31 in advance to press the paper bowl and support the inner side of the bowl mouth. Then the curling mold 71 continues to move downward, driving the movable mold 32 to overcome the cylinder and move downward. The upper curling groove 73 of the curling mold 71 and the lower curling groove 74 of the movable mold 32 cooperate with each other to curl the bowl mouth.

[0023] As a further improved specific implementation method, see the attached Figure 2 A section of convex rail 9 is provided on the base 1 corresponding to the straight edge mechanism 6 and the curling mechanism 7. The convex rail 9 is supported and matched with the lower end of the lifting guide rod 34. A roller can also be provided at the lower end of the lifting guide rod 34. The convex rail 9 maintains the movable mold 32 of this section in a high position, and the high-position movable mold 32 supports the straight edge of the bowl mouth, effectively maintains the straight edge effect, and transitions to the curling mechanism 7, which is continued to be maintained by the lifting drive cylinder 75, and cooperates with the subsequent curling forming to avoid the movable mold 32 from having to rise again after being reset, so that it can be better connected and matched, and the efficiency is improved.

[0024] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conical paper bowl curling forming machine, comprising a base, characterized in that: The machine base is provided with a turntable, on which are provided a plurality of circumferentially distributed lower forming molds, and a bowl feeding mechanism, a bowl pressing mechanism, a straight edge mechanism, a curling mechanism and a bowl discharging mechanism are sequentially arranged on the rotating path of the lower forming mold; the lower forming mold comprises a fixed mold and a movable mold, the fixed mold has a cavity matching and accommodating a conical paper bowl, and the mouth of the bowl is exposed in the cavity, the movable mold is annular, and can be lifted and moved and sleeved on the outer periphery of the fixed mold, and the corresponding movable mold is provided with a lifting guide rod, and the lifting guide rod is passed through the turntable; the bowl pressing mechanism comprises a lifting and lowering pressing plate, which is pressed and matched with the mouth of the bowl to press the paper bowl down to fit the cavity of the fixed mold; the straight edge mechanism comprises a lifting and lowering straight edge mold, which has a cylindrical straight edge portion and a conical surface pressing portion distributed up and down, the conical surface pressing portion cooperates with the cavity of the fixed mold to position the paper bowl, the cylindrical straight edge portion cooperates with the annular movable mold to perform straight edge forming on the mouth of the bowl, and the corresponding machine base is provided with a movable mold lifting and driving ejector.

2. The conical paper bowl curling forming machine according to claim 1, characterized in that: The bowl delivery mechanism comprises a conveyor belt and a transfer robot, and the transfer robot is connected between the conveyor belt and the turntable to transfer the paper bowl.

3. The conical paper bowl curling forming machine according to claim 1, characterized in that: The curling mechanism includes a curling mold that can be raised and lowered and a paper pressing mold that can be elastically extended and arranged in the lower concave cavity of the curling mold. The curling mold and the movable mold are provided with an upper curling groove and a lower curling groove that cooperate with each other. The corresponding machine base is provided with a movable mold lifting drive cylinder. The cavity of the paper pressing mold and the fixed mold cooperate with each other to position the paper bowl, and the outer circle of the paper pressing mold supports the inner side of the bowl mouth.

4. The conical paper bowl curling forming machine according to any one of claims 1 to 3, characterized in that: A section of convex rail is arranged on the machine base corresponding to the straight edge mechanism and the curling mechanism, and the convex rail cooperates with the lower end support of the lifting guide rod and maintains the movable mold of this section at a high position.

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