A screw cap positioning machine for producing thermos cups

Abstract

This invention discloses a capping and positioning machine for producing thermos cups, including a frame and a rotary drive component. The frame is equipped with a pressing mechanism and a rotary clamping mechanism. The rotary drive component drives the rotary clamping mechanism to rotate. The pressing mechanism includes a pressing frame, a cup lid with its opening facing downwards mounted on the pressing frame, and a pressing drive component that drives the cup lid to move vertically up and down above the rotary clamping mechanism. In use, the robot places the thermos cup into the rotary clamping mechanism and clamps it. The pressing drive component drives the cup lid to extend towards the thermos cup. The rotary drive component drives the rotary clamping mechanism to rotate, tightening the cup lid onto the thermos cup. The lettering on the cup lid aligns with the position on the thermos cup where lettering is needed. The rotary drive component reverses, detaching the thermos cup from the cup lid. The pressing drive component drives the cup lid to retract upwards. Simultaneously, the rotary drive component drives the rotary clamping mechanism to rotate the thermos cup to the position where it is aligned with the cup lid. After the robot gripper grasps the aligned position, the thermos cup is sent to the lettering machine for lettering.

Description

Technical Field

[0001] This invention belongs to the technical field of thermos cup processing, specifically relating to a capping and positioning machine for thermos cup production. Background Technology

[0002] Currently, some stainless steel thermos cups require lettering or brand logos to be stamped on the cup body during the production process. After the lid is tightened, the lettering or brand logo on the cup body must be aligned with the one on the lid, and the lettering on the cup body must be within a designated area of ​​the cup body weld (e.g., the lettering is near the 90° angle of the cup body weld). However, the existing front-end visual weld measurement process on the automated production line can only determine the position of the cup body weld. In the thread rolling process, the starting point of the thread avoids the position of the cup body weld, and cannot guarantee that the lettering on the cup body will be aligned with the lettering on the lid when it is stamped later.

[0003] The existing factory process involves manually screwing on the lid and aligning the cup body with the lid, then manually punching the lettering on the cup body. By observing and operating manually, the weld seams on the cup body can be avoided, and the lettering on the cup body and lid can be aligned. However, this method is inefficient and wastes manpower. To automate the production of thermos cups, manual operation must be transformed into machine operation. This requires the development of a device to enable the smooth automated production of thermos cups. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention proposes a capping and positioning machine for the production of thermos cups.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] This invention provides a capping and positioning machine for producing thermos cups, including a frame and a rotary drive component. The frame is provided with a pressing mechanism and a rotary clamping mechanism. The rotation axis of the rotary clamping mechanism is parallel to the vertical direction. The rotary drive component drives the rotary clamping mechanism to rotate. The pressing mechanism includes a pressing frame, a cup lid with the opening facing down on the pressing frame, and a pressing drive component that drives the cup lid to move vertically up and down above the rotary clamping mechanism.

[0007] As a further improvement, at least two rotary clamping mechanisms are spaced apart on the frame. The at least two rotary clamping mechanisms are driven to rotate synchronously by a rotary drive component. The number of cup lids on the lower pressure frame is the same as the number of rotary clamping mechanisms.

[0008] As a further improvement, the rotary clamping mechanism includes a clamping mold, a chuck for driving the opening and closing of the clamping mold, and a set of synchronous wheels driven by a rotary drive component to drive the chuck and the clamping mold to rotate.

[0009] As a further improvement, the synchronizing pulley set includes a rotary bearing, a rotary shaft disposed within the rotary bearing, and a synchronizing pulley disposed on the outer ring of the rotary bearing.

[0010] As a further improvement, the chuck is a pneumatic chuck, an electric chuck, or a hydraulic chuck.

[0011] As a further improvement, the lower pressure frame includes side columns respectively disposed on both sides of the rotary clamping mechanism and a main crossbeam disposed on the side columns.

[0012] As a further improvement, the pressing frame includes a cup lid crossbeam, with both ends of the cup lid crossbeam located on the side columns on both sides, and the cup lid with its opening facing downwards located on the cup lid crossbeam. The pressing drive component drives the cup lid crossbeam to move up and down on the side columns on both sides.

[0013] As a further improvement, the side columns on both sides are provided with sliding sleeves, and the two ends of the cup lid beam are respectively fixed on the sliding sleeves.

[0014] As a further improvement, the rotary drive component is a servo motor.

[0015] As a further improvement, the downward driving component is a servo electric cylinder or a servo pneumatic cylinder.

[0016] This invention provides a capping and positioning machine for producing insulated cups, comprising a frame and a rotary drive component. The frame is equipped with a pressing mechanism and a rotary clamping mechanism. The rotation axis of the rotary clamping mechanism is parallel to the vertical direction. The rotary drive component drives the rotary clamping mechanism to rotate. The pressing mechanism includes a pressing frame, a cup lid with its opening facing downwards mounted on the pressing frame, and a pressing drive component that drives the cup lid to move vertically up and down above the rotary clamping mechanism. In use, a robotic gripper places the insulated cup into the rotary clamping mechanism, which clamps the insulated cup. The pressing drive component drives the cup lid to extend towards the opening of the insulated cup, leaving a slight allowance for the lid and insulated cup to align. The cup lid remains stationary throughout the process to ensure the position of the lettering on the lid is fixed. The rotary drive component drives the rotary clamping mechanism to rotate, causing the insulated cup on the rotary clamping mechanism to rotate, thus tightening the cup lid onto the insulated cup. At this point, it is determined that the lettering on the cup lid aligns perfectly with the lid. The process of aligning the lettering on a thermos flask involves a rotary drive component reversing to detach the flask from its lid. A downward drive component then retracts the lid. Simultaneously, the rotary drive component activates a rotary clamping mechanism, rotating the flask to align with the lettering on the lid while avoiding weld seams. When the robotic gripper picks up the flask, the rotary clamping mechanism releases it, allowing the gripper to align the flask and then transfer it to the lettering machine for lettering. This process solves the problem of transitioning from manual to automated production in the current thermos flask manufacturing industry, enabling a shift from labor-intensive to automated processes. Attached Figure Description

[0017] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the main structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the rotary clamping mechanism of the present invention.

[0021] In the diagram, 1 is the frame; 2 is the rotary drive component; 3 is the rotary clamping mechanism; 4 is the pressing mechanism; 31 is the clamping mold; 32 is the chuck; 33 is the synchronous pulley set; 331 is the rotating shaft; 332 is the rotary bearing; 333 is the synchronous pulley; 41 is the pressing frame; 42 is the cup lid; 43 is the pressing drive component; 411 is the side column; 412 is the main crossbeam; 413 is the cup lid crossbeam; and 414 is the sliding sleeve. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0023] Combination Figure 1As shown, this embodiment of the invention provides a capping and positioning machine for thermos cup production, including a frame 1 and a rotary drive component 2. In this embodiment, the rotary drive component 2 is mounted on the frame 1. The rotary drive component 2 is a servo motor, and the servo motor's torque is adjustable via a programmable logic controller (PLC) torque mode. Specifically, the torque mode control method is as follows: the PLC's analog output port is connected to the servo driver's torque input port. The 0-10V voltage output by the PLC corresponds to 0-100% of the servo motor's rated torque. The PLC provides a torque value via analog input, and the servo driver adjusts the torque value based on the PLC's analog voltage output and the driver's own torque input. The proportional-integral-derivative (PID) control algorithm ensures that the servo motor's output torque matches the analog output from the PLC. When the load torque fed back to the driver from the motor is less than the set torque, the driver controls the motor to operate in the opposite direction to the spindle motor. When the torque fed back from the servo motor is equal to the set torque, the driver stops the motor or maintains the current torque, running at the same speed and in the same direction as the spindle motor. When the torque fed back from the motor is greater than the set torque, the driver controls the motor to run in the same direction as the spindle motor, and the motor speed in torque mode will be higher than that of the spindle motor. Furthermore, when using torque mode, it is best to set a speed limit for the servo driver via the PLC's analog output or a potentiometer. This limit specifies the maximum speed the motor in torque mode is allowed to reach when the set load torque is achieved. Of course, the speed limit can also be set via driver parameters or given using the PLC's analog output.

[0024] The frame 1 is equipped with a pressing mechanism 4 and a rotary clamping mechanism 3. The pressing mechanism 4 includes a pressing frame 41, a cup lid 42 with its opening facing downwards mounted on the pressing frame 41, and a pressing drive component 43 that drives the cup lid 42 to move vertically up and down above the rotary clamping mechanism 3. The pressing drive component 43 can be a servo electric cylinder or a servo pneumatic cylinder. In this embodiment, a servo electric cylinder is used for ease of automation control. The servo electric cylinder can be controlled to extend and retract via a PLC. The rotation axis of the rotary clamping mechanism 3 is parallel to the vertical direction. The rotary drive component 2 drives the rotary clamping mechanism 3 to rotate. In this embodiment, the rotary clamping mechanism 3 includes a clamping mold 31, a chuck 32 that drives the clamping mold 31 to open and close, and a synchronous wheel set 33 driven by the rotary drive component 2 to drive the chuck 32 and the clamping mold 31 to rotate. The chuck 32 can be a pneumatic chuck, an electric chuck, or a hydraulic chuck. For ease of automation control, an electric chuck is used in this embodiment, and its opening and closing can be controlled by a PLC. The synchronous pulley set 33 includes a rotary bearing 332, a rotary shaft 331 disposed within the rotary bearing 332, and a synchronous pulley 333 disposed on the outer ring of the rotary bearing 332.

[0025] In use, the robot gripper places the thermos cup into the clamping mold 31 of the rotary clamping mechanism 3. The PLC-controlled electric chuck closes and drives the clamping mold 31 to clamp and secure the thermos cup. The PLC-controlled servo cylinder of the downward drive component 43 causes the lid 42 to extend towards the mouth of the thermos cup, leaving a slight allowance for the lid 42 to close properly. The lid 42 remains stationary throughout the process to ensure the position of the lettering on the lid is fixed. The PLC-controlled servo motor of the rotary drive component 2 drives the clamping mold 31 and the electric chuck of the rotary clamping mechanism 3 to rotate, causing the thermos cup on the clamping mold 31 to rotate, thus tightening the lid 42 onto the thermos cup. At this point, it is confirmed that the lettering on the lid 42 is aligned with the thermos cup after the lid is closed. When aligning the lettering on a thermos cup, the PLC controls the servo motor of the rotary drive component 2 to reverse, disengaging the thermos cup from the lid 42. Simultaneously, the servo cylinder of the downward drive component 43 retracts, driving the lid 42 upwards. While the thermos cup is detached from the lid 42, the PLC controls the servo motor of the rotary drive component 2 to rotate the clamping mold 31 and the electric chuck, rotating the thermos cup on the clamping mold 31 to the position where the lettering on the thermos cup and lid 42 were aligned, avoiding the weld seam. When the robot gripper picks up the thermos cup, the electric chuck of the rotary clamping mechanism 3 releases, causing the clamping mold 31 to release the thermos cup. The robot gripper then picks up the aligned thermos cup and places it on the lettering machine for lettering. This process solves the problem of transitioning from manual to automated production in the current thermos cup manufacturing industry, enabling the industry to shift from manual labor to automated processing.

[0026] As a further preferred embodiment, at least two rotary clamping mechanisms 3 are spaced apart on the frame 1. These at least two rotary clamping mechanisms 3 are driven synchronously by a rotary drive component 2. The number of cup lids 42 on the lower pressing frame 41 is the same as the number of rotary clamping mechanisms 3. The use of dual-station rotary clamping mechanisms 3, symmetrically placed on both sides, provides sufficient space for cup loading and unloading channels. The loading and unloading robots are placed directly on both sides of the equipment, eliminating interference during operation. The compact structure facilitates automated control of the production line.

[0027] As a further preferred embodiment, the pressure frame 41 includes side columns 411 respectively disposed on both sides of the rotary clamping mechanism 3 and a main crossbeam 412 disposed on the side columns 411. This design makes the pressure drive component 43 more stable when it extends and retracts.

[0028] In a further preferred embodiment, the pressing frame 41 includes a cup lid crossbeam 413, with both ends of the cup lid crossbeam 413 mounted on side posts 411 on both sides. The cup lid 42 is mounted on the cup lid crossbeam 413 with its opening facing downwards. The pressing drive component 43 drives the cup lid crossbeam 413 to move up and down on the side posts 411 on both sides. The pressing drive component 43 provides greater stability when driving the cup lid 42 up and down, and when there are at least two cup lids 42, the up and down movement of the cup lids 42 is more synchronized.

[0029] As a further preferred embodiment, the side pillars 411 on both sides are provided with sliding sleeves 414, and the two ends of the cup lid crossbeam 413 are respectively fixed on the sliding sleeves 414, so that the cup lid 42 is more stable when moving up and down, and the sliding sleeves 414 can better reduce the damage to the side pillars 411.

[0030] The foregoing description sets forth many specific details to provide a full understanding of the invention. However, the invention may be practiced in other ways different from those described herein, and therefore should not be construed as limiting the scope of protection of the invention.

[0031] In summary, although the present invention has listed the above preferred embodiments, it should be noted that various changes and modifications can be made by those skilled in the art, and such changes and modifications should be included within the scope of protection of the present invention unless they deviate from the scope of the present invention.

Claims

1. A capping and positioning machine for producing thermos cups, characterized in that, The device includes a frame (1) and a rotary drive component (2). The rotary drive component (2) is a servo motor, and the preset torque of the servo motor is adjustable through the torque mode of a programmable controller. The frame (1) is equipped with a pressing mechanism (4) and a rotary clamping mechanism (3). The rotary clamping mechanism (3) includes a clamping mold (31), a chuck (32) that drives the clamping mold (31) to open and close, and a set of synchronous pulleys (360-200-2000) driven by the rotary drive component (2) to drive the chuck (32) and the clamping mold (31) to rotate. 3) The chuck (32) is an electric chuck. The rotation axis of the rotary clamping mechanism (3) is parallel to the vertical direction. The rotary drive component (2) drives the rotary clamping mechanism (3) to rotate. The pressing mechanism (4) includes a pressing frame (41), a cup lid (42) with the opening facing down on the pressing frame (41), and a pressing drive component (43) that drives the cup lid (42) to move vertically up and down above the rotary clamping mechanism (3). The pressing drive component (43) is a servo electric cylinder. The positioning method is as follows: S1. Place the thermos cup into the clamping mold (31) of the rotary clamping mechanism (3) and drive the clamping mold (31) to clamp and fix the thermos cup by the electric chuck. S2, The servo electric cylinder of the pressing drive component (43) drives the cup lid (42) to descend towards the mouth of the thermos cup; S3. The servo motor of the rotary drive component (2) drives the clamping mold (31) and electric chuck of the rotary clamping mechanism (3) to rotate, thereby rotating the thermos cup on the clamping mold (31) so that the cup lid (42) is tightened onto the thermos cup and the characters on the cup lid (42) are aligned with the position of the characters that need to be flushed on the thermos cup after the lid is closed. S4. The servo motor of the rotary drive component (2) reverses, causing the thermos cup to separate from the lid (42), while the downward drive component (43) drives the lid (42) to retract upward. S5. The servo motor of the rotary drive component (2) operates to drive the thermos cup on the rotary clamping mechanism (3) to rotate to the position where the cup lid (42) and the thermos cup lid are in contact in step S3, so that the thermos cup is positioned.

2. The capping and positioning machine for producing thermos cups as described in claim 1, characterized in that, At least two rotating clamping mechanisms (3) are spaced apart on the frame (1). The at least two rotating clamping mechanisms (3) are driven to rotate synchronously by a rotating drive component (2). The number of cup lids (42) on the lower pressure frame (41) is the same as the number of rotating clamping mechanisms (3).

3. The capping and positioning machine for producing thermos cups as described in claim 1, characterized in that, The synchronous pulley set (33) includes a rotary bearing (332), a rotary shaft (331) disposed in the rotary bearing (332), and a synchronous pulley (333) disposed on the outer ring of the rotary bearing (332).

4. A capping and positioning machine for producing thermos cups as described in claim 1 or 2, characterized in that, The lower pressure frame (41) includes side columns (411) respectively arranged on both sides of the rotary clamping mechanism (3) and a main crossbeam (412) arranged on the side columns (411).

5. A capping and positioning machine for producing thermos cups as described in claim 4, characterized in that, The pressing frame (41) includes a cup lid crossbeam (413), with both ends of the cup lid crossbeam (413) located on the side columns (411) on both sides. The cup lid (42) is located on the cup lid crossbeam (413) with its opening facing downwards. The pressing drive component (43) drives the cup lid crossbeam (413) to move up and down on the side columns (411) on both sides.

6. The capping and positioning machine for producing thermos cups as described in claim 5, characterized in that, The side columns (411) on both sides are provided with sliding sleeves (414), and the two ends of the cup lid beam (413) are respectively fixed on the sliding sleeves (414).

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