Outer cup clamping device and outer cup clamping method of double-layer glass cup automatic sealing machine

Abstract

The present invention provides an outer cup clamping device and an outer cup clamping method for an automatic double-layer glass cup sealing machine, and belongs to the technical field of glass cup processing. It solves the problem that the existing outer cup clamping force is not well controlled. The outer cup clamping device of the automatic double-layer glass cup sealing machine includes a chuck body, a turntable, a claw driving mechanism and at least three movable claw assemblies. The claw driving mechanism can drive the turntable to rotate to drive the above-mentioned movable claw assemblies to move synchronously in radial direction. The claw driving mechanism includes a hand wheel arranged coaxially with the turntable, and a bayonet is fixedly provided on the side of the turntable facing the hand wheel. A movable groove is provided on the hand wheel, and the bayonet is inserted into the movable groove. There is an idle clearance between the movable groove and the bayonet on the moving path of the bayonet. After pre-clamping, a secondary clamping driving external force is applied once again. When the secondary clamping driving external force is exhausted, it can ensure that the outer cup is clamped firmly, and at the same time, the outer cup will not be broken due to continuous excessive force. The operation is simple and convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of glass cups, and relates to processing equipment for double-layer glass cups, and in particular to an outer cup clamping device and an outer cup clamping method of an automatic double-layer glass cup sealing machine. Background Art

[0002] As people's living standards improve, double-layer glass thermos cups that are easy to use and have good heat preservation performance are increasingly popular. Usually, when preparing such a glass cup, two single-layer glass cups with different diameters need to be put together, and then the cup mouths of the two single-layer glass cups are sealed and connected, and then external threads are pressed out at the connected cup mouths through a threaded mold. Due to the high degree of manual participation in the above-mentioned preparation operation, the production efficiency is low and it is not convenient.

[0003] In recent years, some automatic sealing machines for double-layer glass cups have been developed and applied. Except for the upper and lower workpieces of the inner cup and the outer cup, which require manual assistance, other processes of this type of equipment can be fully automated. During the processing, the outer cup needs to remain motionless, so a specific clamping device is used to clamp it. The clamping device does not have enough holding force to achieve a good clamping effect. However, since the outer cup is made of glass, excessive clamping force can easily damage the outer cup. The clamping force is difficult to control, and the staff often need to adjust the clamping force while detecting the clamping effect. This not only greatly affects the work efficiency, but also easily crushes the cup if the clamping driving force is continued to be applied to the outer cup that is already in the clamped state. Summary of the invention

[0004] The first purpose of the present invention is to address the above-mentioned problems existing in the existing double-layer glass cup automatic sealing machine when clamping the outer cup, and to propose an outer cup clamping device with just the right holding force on the outer cup.

[0005] The first object of the present invention can be achieved by the following technical solutions:

[0006] A outer cup clamping device of a double-layer glass cup automatic sealing machine comprises a chuck body, a turntable, a claw driving mechanism and at least three movable claw assemblies, wherein the three movable claw assemblies are evenly distributed on the chuck body in the circumferential direction, the turntable is arranged in the chuck body and is connected to the movable claw assembly through a transmission mechanism, the claw driving mechanism can drive the turntable to rotate to drive the above-mentioned movable claw assembly to move synchronously radially, and is characterized in that the claw driving mechanism comprises a hand wheel arranged coaxially with the turntable, a bayonet is fixedly provided on the side of the turntable facing the hand wheel, a movable groove is opened on the hand wheel, the bayonet pin is inserted into the movable groove, and there is an idle clearance between the movable groove and the bayonet pin on the movement path of the bayonet pin.

[0007] The rotation stroke of the handwheel is divided into a driving stroke and an idling stroke. When the handwheel is in the driving stroke, the rotation of the handwheel directly drives the turntable to rotate; when the handwheel is in the idling stroke, the handwheel rotates, but the turntable and the latch do not move.

[0008] In the outer cup clamping device of the above-mentioned double-layer glass cup automatic sealing machine, the movable groove is in an arc shape.

[0009] In the outer cup clamping device of the above-mentioned double-layer glass cup automatic sealing machine, the latch is perpendicular to the plane where the turntable is located.

[0010] In the outer cup clamping device of the above-mentioned double-layer glass cup automatic sealing machine, there are multiple movable grooves and multiple latches, and the multiple movable grooves are located on the same circumference.

[0011] In the outer cup clamping device of the above-mentioned double-layer glass cup automatic sealing machine, the transmission mechanism includes a spiral groove opened on the side of the turntable facing the movable claw assembly, and a plurality of slide grooves are radially opened on one end face of the chuck body. The above-mentioned movable claw assemblies are respectively clamped in the corresponding slide grooves and are engaged with the above-mentioned spiral grooves. The rotation of the turntable can drive the movable claw assembly to move back and forth synchronously radially along the corresponding slide grooves.

[0012] In the outer cup clamping device of the above-mentioned double-layer glass cup automatic sealing machine, the movable claw assembly includes a slider and a claw. The slider is arranged in the corresponding slide groove and the inner side is engaged with the spiral groove. The outer side of the slider is fixed with the corresponding claw.

[0013] In the outer cup clamping device of the above-mentioned double-layer glass cup automatic sealing machine, the outer cup clamping device also includes an end cover, an inner cavity is provided inside the chuck body, the above-mentioned turntable is arranged in the inner cavity, the hand wheel clamp is arranged between the end cover and the chuck body, and the end cover is fixedly connected to the chuck body.

[0014] In the outer cup clamping device of the double-layer glass cup automatic sealing machine, a central axis is fixedly provided at the center of the inner cavity of the chuck body, and the hand wheel and the turntable are both sleeved on the central axis.

[0015] The second objective of the present invention is to address the above-mentioned problem existing in the existing double-layer glass cup automatic sealing machine when clamping the outer cup, and to propose a method for clamping the outer cup with just the right holding force on the outer cup.

[0016] The second object of the present invention can be achieved by the following technical solutions:

[0017] A method for clamping an outer cup of a double-layer glass cup automatic sealing machine, using the outer cup clamping device, is characterized in that it comprises the following steps:

[0018] S1. Rotate the hand wheel in the opposite direction to open the jaws. The size of the clamping opening between the jaws is larger than the outer diameter of the outer cup.

[0019] S2, insert the outer cup to be processed into the clamping port;

[0020] S3, turn the hand wheel forward to drive the turntable to rotate forward, and the turntable drives each claw to move radially toward the center, narrowing the clamping opening and clamping the outer cup;

[0021] S4, reversely rotate the hand wheel until the latch touches the reverse end of the movable slot. During this process, the turntable and the claw do not move.

[0022] S5. Apply a one-time external force to the hand wheel to make it rotate forward under the action of inertia until it stops.

[0023] In the outer cup clamping method of the double-layer glass cup automatic sealing machine described above, in the step S3, the hand wheel is rotated in the forward direction, and the hand wheel first has an idle stroke until the latch touches the forward end of the movable groove, and force is continued to be applied, and the hand wheel drives the turntable to rotate forward.

[0024] Compared with the prior art, the outer cup clamping device and outer cup clamping method of the double-layer glass cup automatic sealing machine apply a secondary clamping driving external force at one time after pre-clamping. When the secondary clamping driving external force is exhausted, the outer cup can be firmly clamped, and the outer cup will not be broken due to continuous excessive force. The operation is simple and convenient, and the work efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0026] Figure 2 It is a schematic diagram of the explosion structure of the present invention.

[0027] Figure 3 It is a schematic diagram of the explosion structure from another angle of the present invention.

[0028] In the figure, 1, chuck body; 2, turntable; 3, slide groove; 4, inner cavity; 5, center axis; 6, spiral groove; 7, slider; 8, claw; 9, handwheel; 10, end cover; 11, latch; 12, movable groove. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0030] like Figure 1-3As shown, the outer cup clamping device of the double-layer glass cup automatic sealing machine includes a chuck body 1, a turntable 2, a claw driving mechanism and three movable claw 8 components. Three slide grooves 3 are radially opened on the front of the chuck body 1, and the three slide grooves 3 are arranged at equal intervals around the circumference. The chuck body 1 has an inner cavity 4 inside, and a central axis 5 is fixed in the inner cavity 4. The turntable 2 is located in the inner cavity 4 and sleeved on the central axis 5. The turntable 2 is provided with a spiral groove 6 on the side facing the slide groove 3. The back of the chuck body 1 is open, and the slide groove 3 is connected with the inner cavity 4. The movable claw assemblies all include a slider 7 and a claw 8. The slider 7 is arranged in the corresponding slide groove 3 and the inner side is meshed with the spiral groove 6. The outer side of the slider 7 is fixed with the corresponding claw 8.

[0031] A hand wheel 9 and an end cover 10 are provided on the back of the chuck body 1. The hand wheel 9 is also sleeved on the above-mentioned central axis 5. The hand wheel 9 and the turntable 2 can both rotate relative to the chuck body 1. The end cover 10 is fixedly connected to the back of the chuck body 1. The hand wheel 9 is located between the end cover 10 and the chuck body 1. A bayonet 11 is fixedly provided on the side of the turntable 2 facing the hand wheel 9. A movable groove 12 is provided on the hand wheel 9. The bayonet 11 is inserted into the movable groove 12 one by one. There is an idle clearance between the movable groove 12 and the bayonet 11 located on the moving path of the bayonet 11. In this embodiment, there are two bayonet 11 and two movable grooves 12. The movable groove 12 is in an arc shape. The cylindrical bayonet 11 is perpendicular to the plane where the turntable 2 is located. The two movable grooves 12 are located on the same circumference.

[0032] The steps of clamping the outer cup using the outer cup clamping device are as follows:

[0033] S1, the hand wheel 9 is rotated in the reverse direction. After the hand wheel 9 rotates through the idle stroke, the reverse end of the movable groove 12 touches the latch pin 11, and the hand wheel 9 is continued to be rotated in the reverse direction, so that the hand wheel 9 drives the turntable 2 to rotate in the reverse direction, and the three claws 8 move radially along their respective slide grooves 3 to open, and the clamping openings between the three claws 8 are expanded to a size larger than the outer diameter of the outer cup;

[0034] S2, insert one end of the outer cup to be processed into the clamping opening;

[0035] S3, the hand wheel 9 is rotated forward, and the hand wheel 9 first has an idle stroke until the latch 11 touches the positive end of the movable groove 12, and the force is continued, the hand wheel 9 drives the turntable 2 to rotate forward, and the three claws 8 move radially toward the center along their respective slide grooves 3, narrowing the clamping opening and clamping the outer cup. At this time, the outer cup can still rotate against the claws 8;

[0036] S4, the hand wheel 9 is rotated in the reverse direction through the idle stroke until the latch 11 touches the reverse end of the movable groove 12. During this process, the turntable 2 and the claw 8 do not move;

[0037] S5, applying a one-time secondary clamping driving force to the hand wheel 9, so that the hand wheel 9 rotates forward under the action of inertia until it stops. During this process, the hand wheel 9 first runs the idling stroke in step S3, and the remaining kinetic energy drives the turntable 2 to rotate forward. After the turntable 2 starts, the speed immediately decreases rapidly, the kinetic energy is quickly consumed, and the outer cup is clamped.

[0038] It should be understood that in the claims and description of the present invention, all "including..." should be understood as an open-ended meaning, that is, its meaning is equivalent to "at least contains...", and should not be understood as a closed meaning, that is, its meaning should not be understood as "only includes...".

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An outer cup clamping device for an automatic double-layer glass cup sealing machine, comprising a chuck body (1), a turntable (2), a claw driving mechanism and at least three movable claw assemblies, wherein the three movable claw assemblies are evenly distributed on the chuck body (1) in the circumferential direction, the turntable (2) is arranged in the chuck body (1) and is connected to the movable claw assemblies through a transmission mechanism, the claw driving mechanism can drive the turntable (2) to rotate so as to drive the movable claw assemblies to synchronously move radially, and is characterized in that: The claw driving mechanism comprises a hand wheel (9) arranged coaxially with the rotating disk (2); a latch pin (11) is fixedly provided on the side of the rotating disk (2) facing the hand wheel (9); a movable groove (12) is provided on the hand wheel (9); the latch pin (11) is inserted into the movable groove (12); an idle clearance is provided between the movable groove (12) and the latch pin (11) on the movement path of the latch pin (11); the movable groove (12) is in an arc shape; the outer cup clamping device also comprises an end cover (10); an inner cavity (4) is provided inside the chuck body (1); the rotating disk (2) is arranged in the inner cavity (4); the hand wheel (9) is clamped between the end cover (10) and the chuck body (1); and the end cover (10) is fixedly connected to the chuck body (1).

2. The outer cup clamping device of the double-layer glass cup automatic sealing machine according to claim 1, characterized in that: The latch (11) is perpendicular to the plane where the rotating disk (2) is located.

3. The outer cup clamping device of the double-layer glass cup automatic sealing machine according to claim 1 is characterized in that: The movable grooves (12) and the latches (11) are both multiple, and the multiple movable grooves (12) are located on the same circumference.

4. The outer cup clamping device of the double-layer glass cup automatic sealing machine according to claim 1, characterized in that: The transmission mechanism comprises a spiral groove (6) formed on a side of the turntable (2) facing the movable claw assembly, and a plurality of slide grooves (3) are radially formed on one end surface of the chuck body (1). The movable claw assemblies are respectively arranged in corresponding slide grooves (3) and mesh with the spiral grooves (6). The rotation of the turntable (2) can drive the movable claw assemblies to move back and forth along the corresponding slide grooves (3) in a synchronous radial direction.

5. The outer cup clamping device of the double-layer glass cup automatic sealing machine according to claim 4 is characterized in that: The movable claw assembly comprises a slider (7) and a claw (8); the slider (7) is arranged in the corresponding slide groove (3) and the inner side is engaged with the spiral groove (6); the outer side of the slider (7) is fixed with the corresponding claw (8).

6. The outer cup clamping device of the double-layer glass cup automatic sealing machine according to claim 1, characterized in that: A central shaft (5) is fixedly provided at the center of the inner cavity (4) of the chuck body (1), and the hand wheel (9) and the rotating disk (2) are both sleeved on the central shaft (5).

7. A method for clamping an outer cup of a double-layer glass cup automatic sealing machine, using the outer cup clamping device of claims 1-6, characterized in that: It includes the following steps: S1, rotating the hand wheel (9) in the reverse direction to open the clamping jaws (8), so that the clamping opening between the clamping jaws (8) is larger than the outer diameter of the outer cup; S2, insert the outer cup to be processed into the clamping port; S3, the hand wheel (9) is rotated forward, driving the turntable (2) to rotate forward, and the turntable (2) drives each clamping claw (8) to move radially toward the center, thereby narrowing the clamping opening and clamping the outer cup; S4, the hand wheel (9) is rotated in the reverse direction until the latch (11) touches the reverse end of the movable groove (12). During this process, the rotating disk (2) and the claw (8) are stationary; S5. Apply a one-time external force to the hand wheel (9) so that the hand wheel (9) rotates in the forward direction under the action of inertia until it stops.

8. The outer cup clamping method of the double-layer glass cup automatic sealing machine according to claim 7, characterized in that: In step S3, the hand wheel (9) is rotated in the forward direction, and the hand wheel (9) first has an idle travel until the latch (11) touches the forward end of the movable groove (12), and force is continued to be applied, so that the hand wheel (9) drives the turntable (2) to rotate forward.

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