Sealing device of thin-wall cup

Abstract

The utility model discloses a sealing device of a thin-wall cup, which relates to the technical field of thin-wall cup processing, aims to solve the technical problem that the existing thin-wall cup is easy to deform and pollute during secondary processing, and comprises a support table, a mounting plate, an air cylinder, a push plate, a sealing seat and a sealing ring, the outer diameter of the plug head is gradually reduced from the top end to the open end of the plug head; the outer diameter of the upper end of the chock plug is larger than the inner diameter of a cup opening of the thin-wall cup. The inner ring diameter of the sealing ring is smaller than the outer diameter of the upper end of the plug and larger than the outer diameter of the lower end of the plug. According to the utility model, the sealing ring and the sealing seat are controlled to clamp and seal the cup opening of the open thin-wall workpiece, so that the deformation caused by the stress of the thin wall is avoided, the pollution in the cup is completely eradicated, and the secondary processing on the open thin-wall workpiece during sealing is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of thin-wall cup processing, and more specifically to a sealing device for a thin-wall cup. Background Art

[0002] In the prior art, many thin-walled open cups / cans are deformed by a small amount of pressure during secondary processing such as surface treatment spraying due to the thin wall thickness, resulting in changes in the reference cylindrical surface, or the spraying does not seal the cup mouth, resulting in contamination inside the cup. Therefore, in order to ensure that the cup mouth is strictly sealed when clamping and fixing the thin-walled cup, so that the internal air pressure can support the surface and prevent contamination inside the cup, we propose a method for a sealing device for a thin-walled cup. Utility Model Content

[0003] The utility model aims to provide a sealing device for a thin-walled cup, so as to solve the technical problems that the existing thin-walled cup is easy to deform and contaminate during secondary processing.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: A sealing device for a thin-walled cup, comprising: a support platform, which comprises a base, and a support cylinder supported on the base for supporting a cup body of the thin-walled cup;

[0005] A mounting plate is fixed to the output end of the lifting frame, and the output end of the lifting frame can be extended upward or contracted downward in the longitudinal direction;

[0006] A cylinder is fixedly mounted on the mounting plate, and a piston rod of the cylinder can be extended downward or retracted upward in the longitudinal direction;

[0007] A push plate, fixedly connected to the end of the piston rod of the cylinder;

[0008] A sealing seat, comprising a base plate supported and fixed below the mounting plate, and a plug head fixedly connected to the bottom of the base plate, wherein the bottom of the plug head has an opening, and the plug head is a truncated cone cylinder structure with an outer diameter gradually decreasing from its top end to the open end; the outer diameter of the upper end of the plug head is larger than the inner diameter of the cup mouth of the cup body, and the outer diameter of the lower end of the plug head is smaller than the inner diameter of the cup mouth of the cup body;

[0009] A sealing ring is supported and fixed below the push plate. The sealing ring is sleeved on the outside of the plug, and a gap is provided between the sealing ring and the plug. The inner ring diameter of the sealing ring is smaller than the outer diameter of the upper end of the plug and larger than the outer diameter of the lower end of the plug.

[0010] The utility model is provided with a cylinder, a sealing seat and a sealing ring. When in use, the cup body of the thin-walled cup is inserted into the inner cavity of the supporting tube, and the mounting plate is driven downward by the lifting frame to move downward, thereby driving the sealing seat to move downward, so that the open end portion of the plug is embedded in the cup mouth of the cup body. Due to the inclination of the outer wall of the plug and the fact that the outer diameter of its upper end is larger than the inner diameter of the cup mouth of the cup body, an interference fit is formed between the plug and the cup mouth of the cup body during the extrusion process, and the cup mouth of the cup body is supported and expanded. Then the cylinder is started, and the piston rod of the cylinder drives the sealing ring to move upward. Since the inner ring diameter of the sealing ring is smaller than the outer diameter of the upper end of the plug and larger than the outer diameter of the lower end of the plug, the sealing ring can be firmly clamped on the outer periphery of the cup mouth of the cup body. Through the cooperation of the sealing seat and the sealing ring, the sealing of the cup mouth during the secondary processing of the thin-walled cup can be achieved, which is convenient for the next processing.

[0011] Preferably, the push plate is provided with a plurality of first through holes.

[0012] Preferably, it also includes a fixing rod, wherein a plurality of fixing rods are provided corresponding to the first through holes, one end of the fixing rod is connected to the bottom of the mounting plate, and the other end of the fixing rod passes through the first through hole and is fixedly connected to the top of the base plate.

[0013] Preferably, a plurality of second through holes are provided on the substrate near its edge.

[0014] Preferably, it also includes a connecting rod, and a plurality of the connecting rods are provided corresponding to the second through holes, one end of the connecting rod is fixedly connected to the bottom of the push plate, and the other end of the connecting rod passes through the second through hole and is fixedly connected to the top of the sealing ring.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model is provided with a cylinder, a sealing seat and a sealing ring. When in use, the cup body of the thin-walled cup is inserted into the inner cavity of the supporting tube, and the mounting plate is driven downward by the lifting frame to move downward, thereby driving the sealing seat to move downward, so that the open end portion of the plug is embedded in the cup mouth of the cup body. Due to the inclination of the outer wall of the plug and the fact that the outer diameter of its upper end is larger than the inner diameter of the cup mouth of the cup body, an interference fit is formed between the plug and the cup mouth of the cup body during the extrusion process, and the cup mouth of the cup body is supported and expanded. Then the cylinder is started, and the piston rod of the cylinder drives the sealing ring to move upward. Since the inner ring diameter of the sealing ring is smaller than the outer diameter of the upper end of the plug and larger than the outer diameter of the lower end of the plug, the sealing ring can be firmly clamped on the outer periphery of the cup mouth of the cup body. Through the cooperation of the sealing seat and the sealing ring, the sealing of the cup mouth during the secondary processing of the thin-walled cup can be achieved, which is convenient for the next processing.

[0017] The support platform of the utility model is composed of a base and a support tube supported on the base. When in use, the thin-walled cup body can be placed in the inner cavity of the support tube, which plays a role in protecting and limiting the cup body and ensures that the cup body will not tilt when subjected to force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of a sealing device for a thin-walled cup of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the sealing seat of the utility model when it is not embedded in the cup mouth of the cup body;

[0020] Figure 3 It is a schematic structural diagram of the sealing device of the thin-walled cup of the utility model in a disassembled state;

[0021] Figure 4 It is a partially enlarged structural schematic diagram of the utility model in a state where the sealing seat and the thin-walled cup body are separated;

[0022] Figure 5 It is a structural schematic diagram of the plug head of the utility model when it is embedded in the cup mouth of the cup body;

[0023] Figure 6 It is a structural schematic diagram of the utility model when the plug head part is embedded in the cup mouth of the cup body and the sealing ring is clamped on the outer side of the cup mouth of the cup body.

[0024] Description of the numbers in the figure:

[0025] 1001, cup body; 3, support platform; 31, base; 32, support tube; 4, mounting plate; 5, cylinder; 6, push plate; 61, first through hole; 7, sealing seat; 71, base plate; 711, second through hole; 72, plug; 8, sealing ring; 9, fixing rod; 10, connecting rod. DETAILED DESCRIPTION

[0026] In order to facilitate those skilled in the art to understand the technical solution of the utility model, the technical solution of the utility model is further described in conjunction with the drawings of the specification. 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 this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] like Figure 1-Figure 4 As shown, the utility model relates to a sealing device for a thin-walled cup, which comprises a support platform 3, a mounting plate 4, a cylinder 5, a push plate 6, a sealing seat 7, a sealing ring 8, a fixing rod 9 and a connecting rod 10.

[0028] like Figure 1-Figure 3 As shown, the support platform 3 of this embodiment includes a base 31 and a support tube 32. The support tube 32 is detachably installed in the middle of the top surface of the base 31, and the top of the support tube 32 has an opening. The thin-walled cup body 1001 can be inserted into the inner cavity of the support tube 32, which plays a role in protecting and limiting the cup body 1001, ensuring that the cup body 1001 will not tilt when subjected to force.

[0029] like Figure 1-Figure 3 As shown, the mounting plate 4 of this embodiment is connected to the external lifting frame through a connecting rod, and the output end of the lifting frame can be extended upward or contracted downward in the longitudinal direction. A through groove is opened in the middle of the mounting plate 4 of this embodiment.

[0030] like Figure 1-Figure 3 As shown, the cylinder 5 of this embodiment is assembled on the top of the mounting plate 4 by means of screws, and the piston rod of the cylinder 5 can pass through the through slot in the middle of the mounting plate 4 and can extend downward or contract upward in the longitudinal direction.

[0031] like Figure 1-Figure 3 As shown, the push plate 6 of this embodiment is welded or fixedly connected to the end of the piston rod of the cylinder 5 by screws, and a plurality of first through holes 61 are formed on the push plate 6.

[0032] like Figure 1-Figure 4 As shown, the sealing seat 7 of this embodiment includes a base plate 71 supported and fixed under the mounting plate 4, and a plug 72 fixedly connected to the bottom of the base plate 71; specifically, a plurality of fixing rods 9 are provided corresponding to the first through holes 61, one end of the fixing rod 9 is connected to the bottom of the mounting plate 4, and the other end of the fixing rod 9 passes through the first through hole 61 and is fixedly connected to the top of the base plate 71; a plurality of second through holes 711 are provided on the base plate 71 of this embodiment and near its edge; the plug 72 is fixed to the middle part of the bottom surface of the base plate 71, and the bottom of the plug 72 of this embodiment has an opening, and the plug 72 is a truncated cone structure with an outer diameter gradually decreasing from its top end to the open end; the outer diameter of the upper end of the plug 72 is larger than the inner diameter of the cup mouth of the thin-walled cup, and the outer diameter of the lower end of the plug 72 is smaller than the inner diameter of the cup mouth of the cup body 1001.

[0033] like Figure 1-Figure 3 As shown, the sealing ring 8 of this embodiment is supported and fixed under the push plate 6. Specifically, a plurality of fixing rods 9 are provided corresponding to the first through holes 61. One end of the fixing rod 9 is connected to the bottom of the mounting plate 4, and the other end of the fixing rod 9 passes through the first through hole 61 and is fixedly connected to the top of the base plate 71. The sealing ring 8 is sleeved on the outside of the plug 72, and there is a gap between the sealing ring 8 and the plug 72. The inner ring diameter of the sealing ring 8 is smaller than the outer diameter of the upper end of the plug 72 and larger than the outer diameter of the lower end of the plug 72.

[0034] Working principle: This embodiment provides a sealing device for a thin-walled cup. In the initial state, the thin-walled cup body 1001 is inserted into the inner cavity of the support tube 32. At this time, the cylinder 5 is supported by the lifting frame 2 and hovers directly above the cup body 1001. Figure 5 As shown, when in use, the mounting plate 4 is driven downward by the external lifting frame, thereby driving the sealing seat 7 downward, so that the open end portion of the plug 72 is embedded in the cup mouth of the cup body 1001. Due to the slope of the outer wall of the plug 72 and the outer diameter of its upper end being larger than the inner diameter of the cup mouth of the cup body 1001, an interference fit is formed between the plug 72 and the cup mouth of the cup body 1001 during the extrusion process, and the cup mouth of the cup body 1001 is supported and expanded; Figure 6 As shown, the cylinder 5 is then started, and the piston rod of the cylinder 5 drives the push plate 6 to move upward, thereby driving the sealing ring 8 to move upward. Since the inner ring diameter of the sealing ring 8 is smaller than the upper end outer diameter of the plug 72 and larger than the lower end outer diameter of the plug 72, the sealing ring 8 can be firmly clamped on the outer periphery of the cup mouth of the cup body 1001. At this time, the sealing of the cup mouth of the cup body 1001 is completed, which is convenient for the next step of processing; when the secondary processing of the cup body 1001 is completed, the piston rod of the cylinder 5 moves downward to release the clamping of the cup mouth, and at the same time, the piston rod of the cylinder 5 moves upward, and the cup body 1001 can be separated from the sealing seat 7, thus returning to the initial state, and the cycle is repeated.

[0035] The length of the support tube 32 of this embodiment can be set according to needs. In order to facilitate secondary processing in a sealed clamping state, the support tube 32 can be designed to have a length that only limits the bottom of the cup body 1001.

[0036] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A sealing device for a thin-walled cup, characterized in that: include: A support platform (3), wherein the support platform (3) comprises a base (31), and a support cylinder (32) supported on the base (31) and used for supporting a thin-walled cup body (1001); A mounting plate (4) is fixed to the output end of the lifting frame, and the output end of the lifting frame can be extended upward or contracted downward in the longitudinal direction; A cylinder (5) is fixedly mounted on the mounting plate (4), and a piston rod of the cylinder (5) can be extended downward or retracted upward in the longitudinal direction; A push plate (6) fixedly connected to the end of the piston rod of the cylinder (5); A sealing seat (7), comprising a base plate (71) supported and fixed below the mounting plate (4), and a plug head (72) fixedly connected to the bottom of the base plate (71); the bottom of the plug head (72) has an opening, and the plug head (72) is a truncated cone cylinder structure whose outer diameter gradually decreases from its top end to the open end; the outer diameter of the upper end of the plug head (72) is larger than the inner diameter of the cup mouth of the cup body (1001), and the outer diameter of the lower end of the plug head (72) is smaller than the inner diameter of the cup mouth of the cup body (1001); A sealing ring (8) is supported and fixed below the push plate (6); the sealing ring (8) is sleeved on the outside of the plug (72), and a gap is provided between the sealing ring (8) and the plug (72); the inner ring diameter of the sealing ring (8) is smaller than the outer diameter of the upper end of the plug (72) and larger than the outer diameter of the lower end of the plug (72).

2. A sealing device for a thin-walled cup according to claim 1, characterized in that: The push plate (6) is provided with a plurality of first through holes (61).

3. A sealing device for a thin-walled cup according to claim 2, characterized in that: It also comprises fixing rods (9), a plurality of fixing rods (9) being provided corresponding to the first through holes (61), one end of the fixing rod (9) being connected to the bottom of the mounting plate (4), and the other end of the fixing rod (9) passing through the first through hole (61) and being fixedly connected to the top of the base plate (71).

4. A sealing device for a thin-walled cup according to claim 3, characterized in that: A plurality of second through holes (711) are provided on the substrate (71) and close to the edge thereof.

5. A sealing device for a thin-walled cup according to claim 4, characterized in that: It also includes a connecting rod (10), wherein a plurality of the connecting rods (10) are provided corresponding to the second through holes (711), one end of the connecting rod (10) is fixedly connected to the bottom of the push plate (6), and the other end of the connecting rod (10) passes through the second through hole (711) and is fixedly connected to the top of the sealing ring (8).

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