A pressing device for the rim of a vacuum cup

Abstract

The utility model discloses a kind of thermal cup rim's joint compression device, it is related to thermal cup rim joint compression technical field, comprising: control cabinet, control panel, the inside installation of control cabinet has clamping rotary mechanism, the outer surface of control cabinet is equipped with positioning joint compression mechanism.The utility model is cooperated by electric telescopic link, clamping sleeve and food-grade silicone rubber plate in clamping rotary mechanism, when cup body is clamped, the elastic deformation of rubber plate is utilized to further hold tightly cup body, the problem that existing equipment exists and is dependent on manual holding fixed, easily leading to operator arm fatigue soreness is solved, and holding unstablely easily affects joint compression quality.Its elastic contact mode avoids the problem that rigid metal clamping jaw directly contacts and scratches cup body bright surface, and its self-adapting characteristic enables it to stably clamp a batch of cup type with same inner diameter but slightly different outer diameter (wall thickness), solves the problem of poor universality caused by different cup body structures.

Description

Technical Field

[0001] This utility model relates to the field of sealing the rim of a thermos cup, and specifically to a sealing device for the rim of a thermos cup. Background Technology

[0002] Thermos flasks are common containers in daily life. Their bodies are usually formed by rolling and welding metal sheets, leaving a longitudinal weld seam at the rim. If this raised weld seam is not smoothed out, it will not only affect the sealing effect of the lid, leading to leaks or reduced heat retention, but also affect drinking comfort and hygiene due to the rough surface. Therefore, a special seam pressing device is needed to flatten and smooth the weld seam.

[0003] However, the current seam pressing operation process has several problems: First, some equipment still requires operators to manually support and rotate the cup body during seam pressing. Long-term operation can easily lead to arm fatigue and soreness. In addition, the stability of manual holding is poor, which can easily cause the seam pressing path to deviate and affect the processing effect.

[0004] Secondly, in order to meet different insulation and structural strength requirements, there are various cup bodies on the market, such as single-layer and double-layer vacuum cups, which result in different cup wall thicknesses (outer diameters). Existing fixed-size pressing devices are difficult to adapt to this change, often resulting in insufficient pressing or excessive compression that causes cup deformation.

[0005] In addition, during the pressing process, the hard weld metal will produce tiny debris and burrs when it is rolled. If these debris continue to adhere to the surface of the pressing roller, they will be pressed back into the cup body in subsequent pressing processes, causing secondary scratches and contamination to the surface of the cup.

[0006] In summary, a sealing device for the rim of a thermos cup needs to be developed to solve the above problems. Utility Model Content

[0007] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is: a seam-pressing device for the rim of a thermos cup, comprising: a control cabinet and a control panel; a clamping and rotating mechanism is installed inside the control cabinet, and a positioning seam-pressing mechanism is installed on the outer surface of the control cabinet; the positioning seam-pressing mechanism further comprises: A seam sealing component is installed on the outer surface of the control cabinet, and the seam sealing component includes a pneumatic telescopic device; A scraping component is mounted on the outer surface of the seam pressing component, the scraping component including a positioning plate; A collection component is mounted on the outer surface of the scraping component, the collection component including a connecting plate.

[0008] Furthermore, the clamping and rotating mechanism includes a mounting base, which provides a stable mounting foundation for the subsequent first motor. The first motor is mounted on the inner wall of the mounting base, serving as a power source for driving the cup body to rotate. A sleeve shaft is fixedly connected to the output end of the first motor, which is used to directly support and assist in driving the thermos cup to rotate. A retaining ring is sleeved and fixedly connected to the outer surface of the sleeve shaft, which is used to axially position the cup body. Connecting brackets are symmetrically mounted on both sides of the retaining ring. An electric telescopic rod is mounted on the inner surface of the connecting bracket to provide radial clamping power. A clamping sleeve is mounted on the output end of the electric telescopic rod. A rubber plate is embedded in the inner cavity of the clamping sleeve. The rubber plate is preferably made of food-grade silicone rubber, which can provide sufficient friction to firmly fix the cup body and avoid scratching the surface of the cup body.

[0009] Furthermore, the mounting base is installed on the outer surface of the control cabinet, and the clamping sleeve and the rubber plate both have an arc-shaped cross-section. The rubber material is designed to better adapt to the shape of the outer wall of the cup, allowing parts of its surface to conform to the outer walls of cups with different outer diameters, ensuring a stable clamping grip.

[0010] Furthermore, a linear slide rail platform is installed at the bottom of the pneumatic telescopic device to realize the horizontal movement of the seam pressing component. A limit switch is installed at the edge of the upper surface of the linear slide rail platform. A slide table is slidably connected to the lower surface of the linear slide rail platform to support the sensor and the pressure roller. A laser sensor is fixedly connected to the edge of the lower surface of the slide table for non-contact and accurate measurement of the distance between the cup body and the laser sensor, providing data for adaptive seam pressing. A fixing plate is installed at the center of the lower surface of the slide table. A pressure roller is detachably connected to the inner wall of the fixing plate by bolts. The pressure roller is made of high carbon chromium bearing steel to ensure that it has sufficient hardness, wear resistance and strength to roll and flatten the weld.

[0011] Furthermore, the pneumatic telescopic device is installed on the outer surface of the control cabinet to adjust the height of the entire seam pressing component to accommodate thermos cups of different sizes. The laser sensor and the pressure roller are arranged radially along the sleeve shaft above the top center of the sleeve shaft to ensure that the benchmark for detection and processing is consistent, so that the seam pressing force can be accurately applied to the highest point of the cup body.

[0012] Furthermore, a servo driver is installed on the inner side of the positioning plate for precisely controlling the movement of the second motor. The second motor is installed on the side of the servo driver away from the pressure roller, serving as the power source for driving the scraper to remove debris. A protective shell is installed on the outer surface of the second motor for dust prevention and protection from damage. A connecting rod is fixed to the output end of the second motor for transmitting torque. A bonding scraper is installed on the end of the connecting rod away from the second motor. The bonding scraper is made of polyurethane material and utilizes its elastic deformation ability to tightly adhere to the outer surface of the pressure roller, thereby effectively scraping away the metal debris and burrs attached to the pressure roller after operation.

[0013] Furthermore, the positioning plate is installed on the outer surface of the fixed plate, and the side of the fitting scraper near the pressure roller makes rotatable contact with the outer surface of the pressure roller.

[0014] Furthermore, a drainage box is installed on the side of the connecting plate away from the scraper to collect the scraped debris. A hollow collection ball is detachably threaded to the bottom of the drainage box to facilitate the collection of debris and subsequent cleaning.

[0015] Furthermore, the inner wall of the drainage box is provided with debris flow holes, which serve as channels for debris to enter the collection container.

[0016] Furthermore, the side of the connecting plate away from the drainage box is fixed to the outer surface of the scraper, and the inner surface of the drainage box is provided with an inclined surface that is inclined towards the debris flow hole, so as to guide the debris to slide down to the debris flow hole by gravity and realize the automatic collection of debris.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model, through the cooperation of the electric telescopic rod, clamping sleeve, and food-grade silicone rubber plate in the clamping and rotating mechanism, utilizes the elastic deformation of the rubber plate to hold the cup body tightly when clamping it. This solves the problem of existing equipment relying on manual support and fixation, which easily leads to operator arm fatigue and soreness, and unstable grip can affect the quality of seam pressing. Its elastic contact method avoids the problem of rigid metal claws directly contacting and scratching the glossy surface of the cup body. At the same time, its self-adaptive characteristics enable it to stably clamp a batch of cups with the same inner diameter but slightly different outer diameters (wall thicknesses), solving the problem of poor versatility caused by different cup body structures.

[0019] 2. This utility model, through the cooperation of a laser sensor, pneumatic telescopic device, and linear slide rail in the positioning and pressing mechanism, performs non-contact measurement of the outer contour of the cup body before pressing. This solves the problems of incomplete weld pressing and slippage caused by the fixed stroke pressure roller failing to effectively fit the cup body when the outer diameter of the cup body is inconsistent. By adjusting the pressing height and path in real time based on the measurement data, it avoids defects such as uneven pressing quality and gaps caused by poor contact between the pressure roller and the cup body.

[0020] 3. This utility model utilizes a second motor-driven polyurethane bonding scraper in the scraping and collecting component to rotate around the pressure roller. This scraper, in conjunction with a drainage box and a hollow collecting ball, cleans the surface of the pressure roller during the pressing intervals. This component solves the problem of metal shavings and burrs generated during the pressing process adhering to the pressure roller surface and being pressed back into the cup body during the next pressing operation. Its active scraping and collecting design avoids secondary scratches and contamination of the cup surface caused by shavings being pressed in. Simultaneously, the shavings are collected in a easily detachable hollow collecting ball, preventing the dust from being scattered and polluting the working environment. Attached Figure Description

[0021] Figure 1 This is the front view of this utility model; Figure 2 This is a schematic diagram of the clamping and rotating mechanism of this utility model; Figure 3 This is a structural schematic diagram of the seam sealing component of this utility model; Figure 4 This is a schematic diagram of the scraping component of this utility model; Figure 5 This is a schematic diagram of the structure of the adhesive scraper of this utility model; Figure 6 This is a cross-sectional view of the hollow collecting ball of this utility model; Figure 7 This is a utility model Figure 6 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Control cabinet; 2. Control panel; 3. Clamping and rotating mechanism; 31. Mounting base; 32. First motor; 33. Sleeve shaft; 34. Abutment ring; 35. Connecting frame; 36. Electric telescopic rod; 37. Clamping sleeve; 38. Rubber plate; 4. Positioning and pressing mechanism; 41. Pressing component; 411. Pneumatic telescopic device; 412. Linear slide rail platform; 413. Limit switch; 414. Slide table; 415. Laser sensor; 416. Fixing plate; 417. Pressure roller; 42. Scraping component; 421. Positioning plate; 422. Servo driver; 423. Second motor; 424. Protective shell; 425. Connecting bent bar; 426. Adhesive scraper; 43. Collection component; 431. Connecting plate; 432. Drainage box; 433. Hollow collection ball; 434. Chip discharge hole. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example 1

[0024] Please see Figure 1 - Figure 3 This utility model provides a technical solution: a seam pressing device for the rim of a thermos cup, comprising: a control cabinet 1 and a control panel 2. A clamping and rotating mechanism 3 is installed inside the control cabinet 1, and a positioning seam pressing mechanism 4 is installed on the outer surface of the control cabinet 1. The positioning seam pressing mechanism 4 further comprises: A seam sealing component 41 is installed on the outer surface of the control cabinet 1. The seam sealing component 41 includes a pneumatic telescopic device 411. The scraping component 42 is installed on the outer surface of the seam pressing component 41, and the scraping component 42 includes a positioning plate 421; A collecting component 43 is mounted on the outer surface of the scraping component 42, and the collecting component 43 includes a connecting plate 431.

[0025] The clamping and rotating mechanism 3 includes a mounting base 31, which provides a stable mounting foundation for the subsequent first motor 32. The first motor 32 is installed on the inner wall of the mounting base 31 as a power source to drive the cup body to rotate. The output end of the first motor 32 is fixedly connected to a sleeve shaft 33, which is used to directly support and assist in driving the thermos cup to rotate. The outer surface of the sleeve shaft 33 is fitted with and fixedly connected to a retaining ring 34, which is used to axially position the cup body. Connecting sleeves 35 are symmetrically installed on both sides of the retaining ring 34. An electric telescopic rod 36 is installed on the inner surface of the connecting sleeve 35 to provide radial clamping power. A clamping sleeve 37 is installed at the output end of the electric telescopic rod 36. A rubber plate 38 is embedded in the inner cavity of the clamping sleeve 37. The rubber plate 38 is preferably made of food-grade silicone rubber, which can provide sufficient friction to firmly fix the cup body and avoid scratching the surface of the cup body.

[0026] Mounting base 31 is installed on the outer surface of control cabinet 1. The clamping sleeve 37 and rubber plate 38 both have arc-shaped cross sections. The rubber material is designed to better adapt to the shape of the outer wall of the cup and to allow part of the surface to conform to the outer wall of the cup with different outer diameters, ensuring a stable clamping.

[0027] A linear slide rail platform 412 is installed at the bottom of the pneumatic telescopic device 411 to realize the horizontal movement of the seam pressing component 41. A limit switch 413 is installed at the edge of the upper surface of the linear slide rail platform 412. A slide table 414 is slidably connected to the lower surface of the linear slide rail platform 412 to support the sensor and the pressure roller 417. A laser sensor 415 is fixedly connected to the edge of the lower surface of the slide table 414 for non-contact and accurate measurement of the distance between the cup body and the laser sensor 415, providing data for adaptive seam pressing. A fixing plate 416 is installed at the center of the lower surface of the slide table 414. The inner wall of the fixing plate 416 is detachably connected to the pressure roller 417 by bolts. The pressure roller 417 is made of high carbon chromium bearing steel to ensure that it has sufficient hardness, wear resistance and strength to roll flat the weld.

[0028] The pneumatic telescopic device 411 is installed on the outer surface of the control cabinet 1 to adjust the height of the entire seam pressing component 41 to accommodate thermos cups of different sizes. The laser sensor 415 and the pressure roller 417 are arranged radially above the top center of the sleeve shaft 33 to ensure that the benchmark for detection and processing is consistent, so that the seam pressing force can be accurately applied to the highest point of the cup body.

[0029] The working principle is as follows: First, the operator starts the equipment via control panel 2. The thermos cup body to be processed is placed horizontally (laterally) into the sleeve 33 of the clamping and rotating mechanism 3. The end of the cup body near the rim contacts the abutment ring 34, while one part of the rim to be pressed faces the pressing mechanism directly above. The other part to be pressed is located at the bottom of the cup body, which can initially complete the axial positioning.

[0030] Subsequently, the central controller integrated inside the control cabinet 1 sends a signal command to control the electric telescopic rods 36 located in the connecting sleeves 35 on both sides of the sleeve shaft 33 to extend synchronously, pushing the clamping sleeve 37 and its embedded food-grade silicone rubber plate 38 to retract radially, thereby firmly gripping the cup body from both sides of the sleeve shaft 33. The elastic deformation capability of the rubber plate 38 allows it to adapt to and conform to cup bodies of different outer diameters, ensuring the stability of the clamping and effectively preventing the cup body from slipping or shifting during rotation, while also avoiding the problem of surface scratches that may be caused by direct contact between the hard metal claws and the cup body.

[0031] After the cup body is fixed, the laser sensor 415 continuously emits laser light and receives signals reflected from the outer surface of the cup body, accurately measuring the outer contour data of the top area of ​​the cup body (i.e., the distance to the sensor) in a non-contact manner, and transmitting this data to the central controller in the control cabinet 1 in real time. The controller processes this data, especially for cups with the same inner diameter but different cup wall thicknesses (outer diameter), providing crucial information for subsequent adaptive seam pressing. Subsequently, the pneumatic telescopic device 411 starts working, driving the linear slide platform 412, slide table 414, fixed plate 416, and laser sensor 415 to descend to the calculated target height.

[0032] The pressing operation begins: The controller precisely controls the slide table 414 to move laterally back and forth on the linear slide rail platform 412 according to the pre-planned path. The pressure roller 417 installed on the slide table 414 then rolls over the outer surface of the cup body. Because the pressure roller 417 is made of high carbon chromium bearing steel, it has extremely high hardness and wear resistance. When it rolls over the longitudinal weld seam at the top of the cup body (i.e., the rim area) with great pressure, it can cause the protruding weld metal to undergo plastic deformation, thereby flattening and extending it, and integrating it with the cup body substrate.

[0033] After the weld seam at the top of the cup body is treated, the pneumatic telescopic device 411 drives the linear slide platform 412 to move upward a short distance, leaving a safe clearance for the subsequent rotation of the cup body and connecting frame 35. Next, the first motor 32 starts, driving the cup body to rotate 180 degrees, moving the untreated weld seam area from the bottom to the top. Similarly, the pneumatic telescopic device 411 descends again, and the pressure roller 417 repeats the above-mentioned lateral movement and pressure process until both weld seams on the top and bottom of the cup body are completely treated.

[0034] What needs to be explained is: First, the core purpose of setting up the clamping and rotating mechanism 3 is to achieve automated fixing and rotation of the cup body, thereby replacing the traditional pressing process that relies on workers manually supporting the cup body. In existing technologies, pressing equipment requires workers to hold the cup body for a long time to assist in positioning, which is labor-intensive, easily leads to arm fatigue and soreness, and the stability of manual holding is poor, directly affecting the pressing quality.

[0035] Secondly, this device can adapt to cups with the same inner diameter but different outer diameters. This is mainly because in the production of insulated cups, to achieve different insulation performance or appearance designs, single-layer, double-layer, or even vacuum multi-layer structures are used. This directly leads to differences in cup wall thickness, resulting in different outer diameters for the same inner diameter. The clamping sleeve 37 and rubber plate 38 of this device utilize the elastic deformation of the materials to compensate for changes in the outer diameter within a certain range, achieving stable clamping. Simultaneously, the laser sensor 415 can accurately identify the outer contour, guiding the pressure roller 417 to track and press the seam, thus addressing the dimensional changes caused by the structure.

[0036] Third, there are usually two longitudinal weld seams along the rim of the thermos that need to be treated. This is because the body of a thermos is generally made by rolling and welding a rectangular metal sheet together. During the rolling process, the two long sides of the metal sheet will form butt joints, which, after welding, become two parallel longitudinal weld seams, usually symmetrically distributed at 180 degrees. Therefore, these two raised seams need to be flattened sequentially to obtain a complete and smooth thermos body.

[0037] Finally, it should be noted that some components in the laser sensor 415, limit switch 413, servo driver 422, various motors, and pneumatic components of this device are electrically connected to the central controller via wires, forming a complete control system. Since wire connections are a mature existing technology, they are not fully shown in the accompanying drawings to maintain clarity and simplicity. Those skilled in the art should be able to fully understand and implement this conventional connection method. Example 2

[0038] Please see Figure 1 - Figure 7 This utility model provides a technical solution: Based on embodiment one, a servo driver 422 is installed on the inner side of the positioning plate 421 to precisely control the movement of the second motor 423. The second motor 423 is installed on the side of the servo driver 422 away from the pressure roller 417, serving as the power source for driving the scraper to remove debris. A protective shell 424 is installed on the outer surface of the second motor 423 to prevent dust and protect the motor from damage. A connecting bent rod 425 is fixed to the output end of the second motor 423 to transmit torque. A fitting scraper 426 is installed on the end of the connecting bent rod 425 away from the second motor 423. The fitting scraper 426 is made of polyurethane material and uses its elastic deformation ability to tightly fit the outer surface of the pressure roller 417, thereby effectively scraping off the metal debris and burrs attached to the pressure roller 417 after operation.

[0039] The positioning plate 421 is installed on the outer surface of the fixing plate 416, and the side of the scraper 426 near the pressure roller 417 rotates and contacts the outer surface of the pressure roller 417.

[0040] A drainage box 432 is installed on the side of the connecting plate 431 away from the scraper 426 to collect the scraped debris. A hollow collection ball 433 is detachably threaded to the bottom of the drainage box 432 to facilitate the collection of debris and subsequent cleaning.

[0041] The inner wall of the drainage box 432 is provided with a debris flow hole 434, which serves as a channel for debris to enter the collection container.

[0042] The side of the connecting plate 431 away from the drainage box 432 is fixed to the outer surface of the scraper 426. The inner surface of the drainage box 432 is provided with an inclined surface that is inclined towards the debris flow hole 434. The debris is guided to slide down to the debris flow hole 434 by gravity, so as to realize the automatic collection of debris.

[0043] The working principle is as follows: After each seam pressing operation is completed in Example 1, the pneumatic telescopic device 411, carrying the linear moving platform, limit switch 413, and pressure roller 417, rises a certain distance, and the scraping and collection system begins to work.

[0044] When the limit switch 413 rises a certain distance, it will touch the top of the inner surface of the control cabinet 1, triggering a signal sent back to the controller. The controller then instructs the pneumatic telescopic device 411 to stop moving. At this time, the servo driver 422 receives the controller's instruction and starts the second motor 423. The second motor 423 drives the bonding scraper 426 to slowly rotate around the outer circumference of the pressure roller 417 via the connecting bent rod 425. Because the bonding scraper 426 is made of polyurethane material with certain elasticity and wear resistance, its scraping blade part always maintains close rotational contact with the outer surface of the pressure roller 417 under the action of the spring or its own elasticity.

[0045] When the bonding scraper 426 rotates around the pressure roller 417, it effectively removes metal shavings, oxide scale, and other burrs adhering to the surface of the pressure roller 417 during the pressing process. This process takes place after the pressure roller 417 has risen a certain distance, preventing these shavings from being pressed back into the cup surface during the next pressing operation, thus preventing secondary scratches and contamination of the cup.

[0046] Since the attached burrs and debris are mainly located near the bottom center area of ​​the pressure roller 417, the positions of the bonding scraper 426 and the collecting component 43 during this stage of rotation are as follows: Figure 5 and Figure 6As shown, the scraped debris falls naturally under gravity into the drainage box 432, which is always located directly below the pressure roller 417. The inner surface of the drainage box 432 is designed as an inclined surface facing the debris discharge hole 434, which allows the debris to slide smoothly down the inclined surface and eventually enter the hollow collection ball 433 through the debris discharge hole 434 for temporary storage. Subsequently, the second motor 423 controls the connecting curved rod 425 to drive the fitting scraper 426 and the collection component 43 to reset. This design realizes the automatic collection and gathering of debris.

[0047] When the hollow collecting ball 433 is about to be full of debris and needs to be emptied, the operator presses the button on the control panel 2 to control the second motor 423 to drive the connecting bending rod 425 and the entire scraping and collecting assembly to rotate, causing the drainage box 432 and the hollow collecting ball 433 to rotate to a convenient position facing the operator. At this time, the operator can easily unscrew the hollow collecting ball 433 manually to collect and empty the accumulated debris, and then screw it back on. The maintenance operation is very convenient. After cleaning, the assembly returns to the working standby position. This process is performed when the equipment is not pressing the seam along the rim of the cup.

[0048] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A sealing device for the rim of a thermos cup, comprising: a control cabinet (1) and a control panel (2), characterized in that: The control cabinet (1) is equipped with a clamping and rotating mechanism (3) inside, and a positioning and pressing mechanism (4) is installed on the outer surface of the control cabinet (1). The positioning and pressing mechanism (4) also has the following features: A seam sealing component (41) is installed on the outer surface of the control cabinet (1), and the seam sealing component (41) includes a pneumatic telescopic device (411). A scraping component (42) is mounted on the outer surface of the seam pressing component (41), the scraping component (42) including a positioning plate (421). A collection component (43) is mounted on the outer surface of the scraping component (42), the collection component (43) including a connecting plate (431).

2. The sealing device for the rim of a thermos cup according to claim 1, characterized in that: The clamping and rotating mechanism (3) includes a mounting base (31), on the inner wall of the mounting base (31) a first motor (32) is mounted, the output end of the first motor (32) is fixedly connected to a sleeve shaft (33), the outer surface of the sleeve shaft (33) is fitted with and fixedly connected to a retaining ring (34), the two sides of the retaining ring (34) are symmetrically mounted with connecting sleeves (35), the inner surface of the connecting sleeves (35) is mounted with an electric telescopic rod (36), the output end of the electric telescopic rod (36) is mounted with a clamping sleeve (37), and the inner cavity of the clamping sleeve (37) is fitted with a rubber plate (38).

3. The sealing device for the rim of a thermos cup according to claim 2, characterized in that: The mounting base (31) is installed on the outer surface of the control cabinet (1), and the cross-sections of the clamping sleeve (37) and the rubber plate (38) are both arc-shaped.

4. The seam-sealing device for the rim of a thermos cup according to claim 1, characterized in that: A linear slide rail platform (412) is installed at the bottom of the pneumatic telescopic device (411). A limit switch (413) is installed at the edge of the upper surface of the linear slide rail platform (412). A slide table (414) is slidably connected to the lower surface of the linear slide rail platform (412). A laser sensor (415) is fixedly connected to the edge of the lower surface of the slide table (414). A fixing plate (416) is installed at the center of the lower surface of the slide table (414). A pressure roller (417) is detachably connected to the inner wall of the fixing plate (416) by bolts.

5. The seam-sealing device for the rim of a thermos cup according to claim 4, characterized in that: The pneumatic telescopic device (411) is installed on the outer surface of the control cabinet (1), and the laser sensor (415) and the pressure roller (417) are arranged radially above the top center of the sleeve shaft (33).

6. The seam-sealing device for the rim of a thermos cup according to claim 5, characterized in that: A servo driver (422) is installed on the inner side of the positioning plate (421). A second motor (423) is installed on the side of the servo driver (422) away from the pressure roller (417). A protective shell (424) is installed on the outer surface of the second motor (423). A connecting rod (425) is fixed to the output end of the second motor (423). A fitting scraper (426) is installed on the end of the connecting rod (425) away from the second motor (423).

7. The sealing device for the rim of a thermos cup according to claim 6, characterized in that: The positioning plate (421) is installed on the outer surface of the fixing plate (416), and the side of the fitting scraper (426) near the pressure roller (417) makes rotational contact with the outer surface of the pressure roller (417).

8. The seam-sealing device for the rim of a thermos cup according to claim 1, characterized in that: A drainage box (432) is installed on the side of the connecting plate (431) away from the scraper (426), and a hollow collecting ball (433) is detachably threaded to the bottom of the drainage box (432).

9. The seam-sealing device for the rim of a thermos cup according to claim 8, characterized in that: The inner wall of the drainage box (432) is provided with a debris hole (434).

10. The seam-sealing device for the rim of a thermos cup according to claim 9, characterized in that: The side of the connecting plate (431) away from the drainage box (432) is fixed to the outer surface of the fitting scraper (426), and the inner surface of the drainage box (432) is provided with an inclined surface that is inclined toward the debris hole (434).

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