A mold for flat cup mouth and cup bottom and a method of using the same

Abstract

The application discloses a mold for cutting the cup mouth and the cup bottom, which comprises an upper mold, a lower mold, an upper cutting piece and a lower cutting piece. The upper mold is provided with a mouth positioning piece, and the lower mold is provided with a body positioning piece and a bottom positioning piece. The upper mold and the lower mold are matched to form a loosening position and a pressing position. The upper mold extrudes the body downward and forms the pressing position with the lower mold. In the cutting state, the position of the upper cutting piece corresponds to the position of the mouth positioning piece, and the position of the lower cutting piece corresponds to the position of the bottom positioning piece. The lower mold is connected with a motor in a transmission mode. In the current operation, the flat mouth of the cup mouth and the cup bottom needs to be cut twice by means of two sets of molds, which is high in component cost and time-consuming. The structure can realize the synchronous cutting of the cup mouth and the cup bottom through the cooperation of the mouth positioning piece, the body positioning piece, the bottom positioning piece and the upper cutting piece and the lower cutting piece, and greatly improves the work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of molds, in particular to a mold for flattening the cup mouth and the cup bottom and a method for using the same. BACKGROUND

[0002] In the process of making a vacuum cup, the cup body is usually formed by water expansion, so the upper and lower edges of the cup are relatively rough. Therefore, before further welding, the upper and lower edges of the cup body need to be cut to flatten the cup mouth. In the current operation, the flattening of the cup mouth and the cup bottom needs to be cut twice with two sets of molds, which is time-consuming and costly. Therefore, it needs to be improved. SUMMARY

[0003] The present application provides a new mold for flattening the cup mouth and the cup bottom and a method for using the same to solve the problem of low efficiency caused by twice cutting when flattening the cup mouth in the prior art.

[0004] To solve the above technical problems, the present application realizes the following technical scheme:

[0005] A mold for flattening the cup mouth and the cup bottom, comprising an upper mold, a lower mold, an upper cutting piece, and a lower cutting piece, wherein the upper mold is provided with a mouth positioning piece, the lower mold is provided with a cup body positioning piece and a bottom positioning piece, the upper mold and the lower mold cooperate to form a loosening position and a pressing position, the upper mold presses the cup body downward to form the pressing position with the lower mold, in the cutting state, the position of the upper cutting piece corresponds to the position of the mouth positioning piece, and the position of the lower cutting piece corresponds to the position of the bottom positioning piece, and the lower mold is connected with a motor.

[0006] In the current operation, the flattening of the cup mouth and the cup bottom needs to be cut twice with two sets of molds, which is time-consuming and costly. The present structure can achieve the effect of synchronous cutting of the cup mouth and the cup bottom through the cooperation of the mouth positioning piece, the cup body positioning piece, the bottom positioning piece, and the upper cutting piece and the lower cutting piece, greatly improving the work efficiency.

[0007] As a preferred embodiment, the upper mold of the mold for flattening the cup mouth and the cup bottom comprises an upper top seat, an upper bearing, and an upper connecting rod, the mouth positioning piece is fixed to the lower part of the upper connecting rod, and the upper connecting rod is rotatably connected with the upper top seat through the upper bearing.

[0008] The upper bearing reduces the friction between the upper connecting rod and the upper top seat, which reduces the energy consumption of the motor and saves costs.

[0009] As a preferred embodiment, the bottom positioning piece of the mold for flattening the cup mouth and the cup bottom is an elastic piece, which contracts in the loosening position and expands in the pressing position.

[0010] The bottom positioning member is an elastic member, which expands at the pressing position to effectively fix the bottom of the cup body, and shrinks at the loosening position to facilitate the installation of the cup body.

[0011] As a preferred embodiment, the mold for the flat cup mouth and cup bottom comprises a lower mold base, a positioning bottom rod, a tensioning lower member, a top rod, and a lower air cylinder. The positioning bottom rod is connected with the lower mold base. The cup body positioning member and the bottom positioning member are both connected with the positioning bottom rod. The tensioning lower member is slidingly connected with the positioning bottom rod. The lower mold base is connected with the motor. The bottom positioning member is provided with elastic side arms. The inner side of the elastic side arms is provided with a side arm inclined surface. The tensioning lower member is provided with a lower inclined surface. The side arm inclined surface cooperates with the lower inclined surface. At the pressing position, the top rod abuts against the tensioning lower member. The lower air cylinder is connected with the top rod.

[0012] The top rod drives the tensioning lower member to move upward. The elastic side arms of the bottom positioning member expand outward under the cooperation of the side arm inclined surface and the lower inclined surface and abut against the inner side wall of the uncut cup body, which can increase the static friction between the bottom positioning member and the cup body and effectively fix the bottom of the cup body.

[0013] As a preferred embodiment, the mold for the flat cup mouth and cup bottom comprises a tensioning sleeve and a tensioning support rod. The positioning bottom rod is provided with a tensioning adjusting space which transversely passes through the positioning bottom rod. The tensioning sleeve is sleeved on the outer side of the positioning bottom rod. The tensioning support rod passes through the tensioning adjusting space and is fixedly connected with the tensioning sleeve. The positioning bottom rod is further provided with an upper top space which is in communication with the tensioning adjusting space. The top rod is arranged in the upper top space. At the pressing position, the top rod abuts against the tensioning support rod.

[0014] The tensioning sleeve is sleeved on the outer side of the positioning bottom rod, which can effectively guide the cooperation of the side arm inclined surface and the lower inclined surface.

[0015] As a preferred embodiment, the mold for the flat cup mouth and cup bottom is provided with a side arm step on the elastic side arm and a lower ring step on the top of the tensioning lower member. At the pressing position, the side arm step abuts against the lower ring step.

[0016] The side arm step and the lower ring step can limit the upward movement of the tensioning lower member to a certain height, which can prevent the elastic side arms from being damaged due to excessive expansion and avoid damaging the cup body.

[0017] As a preferred embodiment, the mold for the flat cup mouth and cup bottom is provided with an extension slot on the top of the lower mold base. The bottom of the upper connecting rod extends into the extension slot. The side wall of the bottom of the upper connecting rod is in clearance fit with the extension slot.

[0018] The telescopic groove guides the upper connecting rod.

[0019] As a preferred embodiment, the mold for a flat cup mouth and cup bottom further comprises a restoring spring, which is arranged in the first telescopic groove and abuts against the bottom surface of the upper connecting rod.

[0020] The restoring spring facilitates the transition of the upper mold from the pressing position to the loosening position.

[0021] As a preferred embodiment, the method for using the mold for a flat cup mouth and cup bottom comprises the following steps: a cup body is sleeved on the cup body positioning member, the upper mold is controlled to be pressed down, the mouth positioning member presses the mouth of the uncut cup body against the cup body positioning member, the lower cylinder controls the top rod to be lifted up, the top rod drives the tensioning lower member to move up, the elastic side arms on the bottom positioning member expand outward under the cooperation of the side arm inclined surface and the lower inclined surface and abut against the inner side wall of the uncut cup body, the lower base is controlled to rotate by the motor, the uncut cup body rotates under the action of the static friction force, and then the upper cutting member and the lower cutting member cut the cup body.

[0022] In the current operation, the flat mouth at the cup mouth and the cup bottom needs to be cut twice by means of two sets of molds, which has a large component cost and wastes time. The cooperation of the mouth positioning member, the cup body positioning member, the bottom positioning member, the upper cutting member and the lower cutting member can achieve the effect of synchronous cutting of the cup mouth and the cup bottom, which greatly improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a structural schematic diagram of the upper mold and the lower mold without the top rod and the lower cylinder in the present application;

[0024] Figure 2 FIG. 3 is a sectional view of the present application;

[0025] Figure 3 FIG. 5 is a structural schematic diagram of the lower base and the positioning bottom rod in the present application;

[0026] Figure 4 FIG. 7 is a structural schematic diagram of the bottom positioning member in the present application;

[0027] Figure 5 FIG. 9 is a structural schematic diagram of the tensioning lower member in the present application. DETAILED DESCRIPTION

[0028] The present application will be further described in detail below in combination with the accompanying drawings and the specific embodiments, but they are not limitations of the present application: Figures 1-5 Example 1

[0029]

[0030] ​A mold for cup bottom and cup mouth includes an upper mold 1, a lower mold 2, an upper cutting piece 3, and a lower cutting piece 4. The upper mold 1 is provided with a mouth positioning piece 11. The lower mold 2 is provided with a cup body positioning piece 21 and a bottom positioning piece 22. The upper mold 1 and the lower mold 2 cooperate to form a loosening position and a pressing position. The upper mold 1 presses the cup body downward to form the pressing position with the lower mold 2. In the cutting state, the position of the upper cutting piece 3 corresponds to the position of the mouth positioning piece 11, and the position of the lower cutting piece 4 corresponds to the position of the bottom positioning piece 22. The lower mold 2 is connected with a motor in a transmission mode.

[0031] Preferably, the upper mold 1 includes an upper top seat 12, an upper bearing 13, and an upper connecting rod 14. The mouth positioning piece 11 is fixed to the lower part of the upper connecting rod 14. The upper connecting rod 14 is connected with the upper top seat 12 in a rotating mode through the upper bearing 13.

[0032] Preferably, the bottom positioning piece 22 is an elastic piece. The bottom positioning piece 22 is contracted in the loosening position, and is expanded in the pressing position.

[0033] Preferably, the lower mold 2 includes a lower bottom seat 23, a positioning bottom rod 24, a tensioning lower piece 26, a top rod 25, and a lower air cylinder 29. The positioning bottom rod 24 is connected with the lower bottom seat 23. The cup body positioning piece 21 and the bottom positioning piece 22 are connected on the positioning bottom rod 24. The tensioning lower piece 26 is connected with the positioning bottom rod 24 in a sliding mode. The lower bottom seat 23 is connected with the motor in a transmission mode. The bottom positioning piece 22 is provided with an elastic side arm 221. The inner side of the elastic side arm 221 is provided with a side arm inclined surface 222. The tensioning lower piece 26 is provided with a lower inclined surface 261. The side arm inclined surface 222 cooperates with the lower inclined surface 261. The top rod 25 is in abutment with the tensioning lower piece 26 in the pressing position. The lower air cylinder 29 is connected with the top rod 25.

[0034] Preferably, the tensioning lower piece 26 includes a tensioning sleeve 265 and a tensioning supporting rod 266. The positioning bottom rod 24 is provided with a tensioning adjusting space 241 which transversely passes through the positioning bottom rod 24. The tensioning sleeve 265 is sleeved on the outer side of the positioning bottom rod 24. The tensioning supporting rod 266 is fixedly connected with the tensioning sleeve 265 through the tensioning adjusting space 241. The positioning bottom rod 24 is further provided with an upper top space 242 which is connected with the tensioning adjusting space 241. The top rod 25 is arranged in the upper top space 242. The top rod 25 is in abutment with the tensioning supporting rod 266 in the pressing position.

[0035] As preferred, the elastic side arm 221 is provided with a side arm step 223, and the bottom of the tensioning lower piece 26 is provided with a lower ring step 262, and the side arm step 223 abuts against the lower ring step 262 in the pressing position.

[0036] As preferred, the top of the lower mold 2 is provided with an expansion slot 251, and the bottom of the upper connecting rod 14 extends into the expansion slot 251, and the side wall of the bottom of the upper connecting rod 14 is in clearance fit with the expansion slot 251.

[0037] As preferred, the lower mold 2 further comprises a return spring 28, which is placed in the first expansion slot 251 and abuts against the bottom surface of the upper connecting rod 14.

[0038] As preferred, the uncut cup body is sleeved on the cup body positioning piece 21, the upper mold 1 is controlled to be pressed down, the mouth positioning piece 11 presses the mouth of the uncut cup body against the cup body positioning piece 21, the lower air cylinder 29 controls the upward movement of the ejector rod 25, the elastic side arm 221 on the bottom positioning piece 22 expands outward under the cooperation of the side arm inclined surface 222 and the lower inclined surface 261 and abuts against the inner side wall of the uncut cup body, the lower base 23 is controlled to rotate by the motor, the uncut cup body rotates under the action of the static friction, and then the upper cutting piece 3 and the lower cutting piece 4 cut the cup body.

[0039] In summary, the above only describes the preferred embodiments of the present application, and any equivalent changes and modifications made within the scope of the present application should be included in the scope of the present application.

Claims

1. A mold for cupping the bottom of a flat cup, characterized by: The utility model provides a cup cutting device, including upper mould (1), lower mould (2), upper cutting piece (3), lower cutting piece (4), the upper mould (1) is provided with mouth part positioning part (11), the lower mould (2) is provided with cup body positioning part (21), bottom positioning part (22), the upper mould (1) with lower mould (2) cooperation forms loose position and compression position, and the upper mould (1) is extruded cup body downward and forms compression position with lower mould (2), in cutting state, the position of upper cutting piece (3) with the position of mouth part positioning part (11) corresponds and the position of lower cutting piece (4) with the position of bottom positioning part (22) corresponds, lower mould (2) is connected with motor drive, The lower mould (2) includes lower base (23), positioning bottom rod (24), tensioning lower piece (26), jack (25), lower cylinder (29), the positioning bottom rod (24) is connected with the lower base (23), the cup body positioning part (21), bottom positioning part (22) are all connected on the positioning bottom rod (24), the tensioning lower piece (26) is slidably connected on the positioning bottom rod (24), the lower base (23) is connected with the motor drive, the bottom positioning part (22) is provided with elastic side arm (221), the inside of elastic side arm (221) is provided with side arm inclined plane (222), the tensioning lower piece (26) is provided with lower inclined plane (261), the side arm inclined plane (222) is cooperated with the lower inclined plane (261), when compression position, the jack (25) is abutted with the tensioning lower piece (26), the lower cylinder (29) is connected with the jack (25), The tensioning lower piece (26) includes tensioning sleeve (265), tensioning support rod (266), the positioning bottom rod (24) is provided with tensioning adjustment space (241) that traverses the positioning bottom rod (24), the tensioning sleeve (265) is sleeved on the outside of the positioning bottom rod (24), the tensioning support rod (266) passes through the tensioning adjustment space (241) and is fixedly connected with the tensioning sleeve (265), the positioning bottom rod (24) is further provided with upper top space (242), the upper top space (242) is communicated with the tensioning adjustment space (241), the jack (25) is placed in the upper top space (242), when compression position, the jack (25) is abutted with the tensioning support rod (266), The elastic side arm (221) is provided with side arm step (223), and the lower ring table (262) is arranged at the top of the tensioning lower piece (26), and the side arm step (223) is abutted with the lower ring table (262) when the compression position.

2. A mold for cupping the bottom of a flat cup as defined in claim 1, characterized in that: The upper mould (1) includes upper top base (12), upper bearing (13), upper connecting rod (14), the mouth part positioning part (11) is fixed in the lower part of the upper connecting rod (14), and the upper connecting rod (14) is rotatably connected with the upper top base (12) by the upper bearing (13).

3. A mould for flat cupped cup bases according to claim 2, characterised in that: The bottom positioning member (22) is an elastic member, which is contracted in the loosened position and expanded in the compressed position.

4. A mould for flat cupped cup bases according to claim 3, characterised in that: The lower mold (2) is provided with an expansion slot (251) at the top, and the bottom of the upper connecting rod (14) extends into the expansion slot (251), and the side wall of the bottom of the upper connecting rod (14) is in clearance fit with the expansion slot (251).

5. A mold for cupping the bottom of a flat cup as defined in claim 4, wherein: The lower mold (2) further comprises a return spring (28) which is arranged in the expansion slot (251) and abuts against the bottom surface of the upper connecting rod (14).

6. A method of using the mold for a flat cup bottom of claim 5, characterized in that: In the loosened position, the uncut cup body is sleeved on the cup body positioning member (21), the upper mold (1) is controlled to be pressed down, the mouth positioning member (11) compresses the mouth of the uncut cup body on the cup body positioning member (21), the lower air cylinder (29) controls the upward pressing of the ejector rod (25), the ejector rod (25) drives the upward movement of the tensioning lower member (26), the elastic side arm (221) on the bottom positioning member (22) is expanded outward under the cooperation of the side arm inclined surface (222) and the lower inclined surface (261) and abuts against the inner side wall of the uncut cup body, the motor controls the rotation of the lower base (23), the uncut cup body is rotated under the action of the static friction, and then the upper cutting member (3) and the lower cutting member (4) cut the cup body by approaching the cup body.

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