Automatic carton adhesive tape sealing device

Abstract

The utility model discloses an automatic carton adhesive tape sealing device, and belongs to the technical field of automation. Comprising a rack, a conveying structure, a lifting frame, a clamping and conveying structure, an upper adhesive tape sealing structure and a shape keeping structure, and the clamping and conveying structure can detect the width of a carton; the shape keeping structure comprises two sets of sliding rods, two top pressing assemblies, two side pressing assemblies and a driving assembly used for synchronously driving the two side pressing assemblies to move left and right. The two jacking assemblies are fixed to the left side and the right side of the upper rubber strip sealing structure correspondingly and located on the top of the carton, and friction conveying belts are arranged on the jacking assemblies in the front-back direction. The friction conveying belt abuts against the top of the carton. The two sets of sliding rods are located between the outer sides of the two jacking assemblies and the corresponding sides of the lifting frame correspondingly and arranged in the left-right direction. The two side pressing assemblies are arranged on the two sliding rods in a sliding mode correspondingly and synchronously move in the same direction or away from each other, and at least two pressing wheels are arranged on each side pressing assembly side by side in the front-back direction. The pressing wheel is vertically arranged and abuts against the upper end of the corresponding left side or the upper end of the corresponding right side of the carton.

Description

Technical Field

[0001] This utility model belongs to the field of automation technology, and specifically relates to an automatic sealing strip device for carton. Background Technology

[0002] In existing technologies, automatic carton sealing machines can be used to automatically seal cartons, including automatic folding of carton flaps, automatic application of tape, and automatic sealing of corners with tape. Automatic folding of carton flaps and automatic application of tape can be achieved through a tape sealing device.

[0003] For example, patent application number CN202021167292.5 discloses an automatic carton sealing device, including a frame, a conveying structure arranged along the front-rear direction at the lower part of the frame, a sealing structure on the front side of the upper part of the frame, and a tape sealing structure on the rear side of the upper part of the frame. The conveying structure includes multiple support rollers arranged side-by-side and two conveyor belts arranged side-by-side above the support rollers. The two conveyor belts are both vertically arranged and abut against the left and right sides of the carton respectively. The sealing structure and the tape sealing structure are both located directly above the center line of the two conveyor belts. The sealing structure includes a fixed arm arranged along the front-rear direction on the frame, a folding arm hinged to the lower front part of the fixed arm for folding the front carton flap, a folding cylinder between the folding arm and the fixed arm for driving the folding arm to rotate, a folding plate arranged along the front-rear direction and located below the fixed arm for folding the rear carton flap, and two folding rods symmetrically arranged on the left and right sides of the folding plate for folding the left and right carton flaps. The folding plate is located at... Behind the folding arm, the rear part of the folding plate is horizontally positioned and located adjacent to the top of the carton. The front part of the folding plate is curved upward from back to front. The rear ends of the two folding rods are fixed to the frame and gradually move away from the back to the outside of the carton. The folding rods are obliquely downward from front to back and located adjacent to the top of the carton. The upper part of the folding arm is rotatably mounted on the fixed arm via a first pivot in the left-right direction. A folding head is provided on the rear side of the lower end of the folding arm. A folding cylinder is provided between the middle of the rear side of the folding arm and the fixed arm. When the folding cylinder retracts, the lower side of the folding head is horizontally positioned in the front-back direction and located adjacent to the top of the carton. When the folding cylinder extends, the folding arm rotates forward so that the folding head is located above the carton. Two roller guide structures are provided on the left and right sides of the adhesive strip sealing structure. The roller guide structure includes multiple guide wheels arranged side by side. The guide wheels are vertically arranged and the inner side of the guide wheels abuts against the upper part of the corresponding side of the carton.

[0004] For example, patent application number CN202311380687.1 discloses a carton size adaptive sealing system, including a conveying device arranged in the front-to-back direction and a tape sealing device, a rotating device, and an adjustable corner sealing device arranged sequentially on it; the tape sealing device includes a frame, a lifting frame on the frame, a clamping and conveying structure below the lifting frame, and a front folding arm, a folding plate, a left folding arm, a right folding arm, and an upper adhesive strip sealing structure on the lifting frame. The lifting frame can move vertically, and the front folding arm, folding plate, left folding arm, and right folding arm are respectively used to fold the front box page, the rear box page, the left box page, and the right box page. The arm is driven by a corresponding structure; the adjustable corner sealing device includes four corner sealing structures for applying adhesive strips to the four edges of the carton; the two lower corner sealing structures are arranged side by side and can move synchronously towards or away from each other in the left and right directions; the two upper corner sealing structures are arranged side by side and can move synchronously towards or away from each other in the left and right directions, and can move synchronously up and down in the vertical direction; the rotating device is used to rotate the carton 90°; the system also includes a centering and length detection device; the centering and length detection device is located on the conveying device, between the rotating device and the adjustable corner sealing device, and is used to center the carton and detect the length of the carton; the... The tape sealing device also includes a first position sensor and a sixth position sensor. The lifting frame is located directly above the rear of the clamping and conveying structure. The first and sixth position sensors are both located on the conveying device and are respectively located at the front and rear of the clamping and conveying structure. The two vertical conveyor belts of the clamping and conveying structure can move synchronously towards or away from each other, and a first contact sensor is provided on them. The folding plate includes a detection cylinder, a telescopic sensor on the detection cylinder, a vertical plate arranged in the front-rear direction, a bent plate hinged to the front end of the vertical plate, and a hinge plate in the middle of the upper part of the bent plate. The lower part of the hinge plate is hinged to the front end of the vertical plate through a left-right rotating shaft, and its upper rear side is connected to... A detection cylinder is hinged between the lifting frames; the vertical plate is located directly above the center line of the two vertical conveyor belts; the front part of the curved plate is curved upwards and located in front of the vertical plate, its rear part is obliquely downwards from front to back and located below the vertical plate, and its left and right sides extend outwards relative to the corresponding sides of the vertical plate, located above the carton; the detection cylinder is in a retracted state; when the carton is in the clamping and conveying structure, the two vertical conveyor belts are located outside the carton, the first position sensor is triggered, and the two vertical conveyor belts move towards each other and approach the carton; when the first contact sensors on both vertical conveyor belts are triggered by the carton, the two vertical conveyor belts stop moving;When the carton is positioned at the tape sealing device, the sixth position sensor is triggered, the lifting frame is in a high position and moves downward, the clamping and conveying structure moves the carton backward, and the bending plate presses against the rear carton sheet. As the carton moves backward and the lifting frame moves downward, the rear end of the bending plate moves to the upper side of the rear carton sheet, and the detection cylinder is compressed. When the extension sensor detects that the detection cylinder has extended to a certain extent, the lifting frame stops descending. At this time, the rear carton sheet is in a folded state, the vertical plate is located adjacent to the top of the carton, and the lower side of the rear part of the bending plate rotates to be flush with the lower side of the vertical plate; the height of the carton is obtained. The height detected by the tape sealing device and the length detected by the centering and length detection devices are used to control the adjustable corner sealing device.

[0005] The applicant encountered the following problems while using the existing carton sealing strip device:

[0006] (1) During the clamping and conveying process, the carton may deform, causing the two top carton sheets to twist or not be able to abut together or not to form a straight seam horizontally in the front and back directions.

[0007] (2) Due to its own elasticity, the box sheet will curl upwards; resulting in a larger gap between the two rows of box sheets or forming an upward convex V-shape when sealing with tape.

[0008] In short, this will result in poor sealing of the box with the tape. Utility Model Content

[0009] To address the aforementioned problems, this utility model provides an automatic sealing strip device for cartons, incorporating a shape-maintaining structure to keep two carton sheets horizontal, undeformed, and as close and parallel as possible, thereby ensuring the sealing strip's effectiveness. The technical solution is as follows:

[0010] This utility model provides an automatic carton sealing strip device, which includes a frame, a conveying structure arranged in a front-to-back direction, a lifting frame 1 on the frame, a clamping conveying structure directly below the lifting frame 1, and an adhesive strip sealing structure 2 on the lifting frame 1. The adhesive strip sealing structure 2 is arranged in a front-to-back direction and is located directly above the middle of the conveying structure. The clamping conveying structure can detect the width of the carton 7 and is located adjacent to and above the conveying structure. Two vertical conveyor belts on it can move synchronously towards or away from each other. The device also includes a shape-holding structure, which includes two sets of slide rods 3, two top pressure components 4, and two side pressure components. 5 and a drive assembly for synchronously driving the two side pressure components 5 to move left and right; two top pressure components 4 are respectively fixed on the left and right sides of the upper adhesive strip sealing structure 2, which are located on the top of the carton 7, and a friction conveyor belt is provided on the front and back of the upper part; the friction conveyor belt presses against the top of the carton 7; two sets of slide rods 3 are respectively located on the outside of the two top pressure components 4 and between the corresponding sides of the lifting frame 1, and they are all arranged in the left and right directions; the two sets of side pressure components 5 are respectively slidably arranged on the two sets of slide rods 3, and they move synchronously towards or away from each other, and at least two pressure rollers 6 are arranged side by side on them; the pressure rollers 6 are arranged vertically and press against the corresponding upper left or upper right end of the carton 7.

[0011] In this embodiment of the present invention, each set of slide rods 3 includes two pairs of slide rods arranged side by side and located at the front and rear of the top pressing component 4, respectively. Each slide rod pair includes two slide rods 3 arranged side by side. The slide rods 3 are arranged in the left and right direction, with their inner ends fixed to the outer side of the side pressing component 5 and their outer ends fixed to the corresponding side of the lifting frame 1.

[0012] Specifically, in this embodiment of the present invention, the lifting frame 1 includes two side plates arranged side to the left and right. The side plates are arranged in the front-back direction and are slidably mounted on the frame. The upper adhesive strip sealing structure 2 and the two side pressure components 5 on both sides are fixed between the two side plates by the slide rod 3.

[0013] Furthermore, the side pressure assembly 5 in this embodiment of the present invention also includes a slide 8, with two slides 8 slidably mounted on two sets of slide rods 3 respectively. The slide 8 is arranged in the front-to-back direction and includes two slide seats arranged side by side and a connecting rod between them. The two slide seats are slidably mounted on two pairs of slide rods on the same side, and the connecting rod is arranged in the front-to-back direction. A pressure roller 6 is provided on the lower side of each slide seat, so each side pressure assembly 5 is provided with two pressure rollers 6.

[0014] Furthermore, in this embodiment of the invention, the outer sides of both the front and rear ends of the top pressing assembly 4 are provided with fixing plates 9; the fixing plates 9 are vertically arranged and extend upward relative to the top pressing assembly 4; the driving assembly includes four synchronously driven cylinders 10, all four cylinders 10 are arranged in the left-right direction and are respectively mounted on the four fixing plates 9; the outer end of the cylinder body of the cylinder 10 is fixed to the inner side of the fixing plate 9, and the outer end of its telescopic rod is fixed to the corresponding slide block; the two cylinders 10 at the front are staggered vertically and are located above the front of the upper adhesive strip sealing structure 2, and the two cylinders 10 at the rear are staggered vertically and are located above the rear of the upper adhesive strip sealing structure 2; when the cylinders 10 retract, the pressure roller 6 presses against the corresponding side of the carton 7.

[0015] Furthermore, the automatic carton sealing device in this embodiment of the present invention also includes a folding sheet structure and a lower sealing strip structure; the folding sheet structure is located at the front of the lifting frame 1, arranged in the front-back direction, and is located directly in front of the upper sealing strip structure 2; the lower sealing strip structure is arranged in the front-back direction, located directly below the folding sheet structure, and is located on the conveying structure.

[0016] In one embodiment of this utility model, a first contact sensor and a second contact sensor are respectively provided at the front end and middle part of one of the vertical conveyor belts. The first contact sensor is used to control the vertical conveyor belt and detect the width of the carton 7, and the second contact sensor is used to control the side pressure assembly 5.

[0017] In this embodiment of the invention, the friction conveyor belt has multiple anti-slip stripes arranged side by side on its surface, and the anti-slip stripes are arranged in the left-right direction.

[0018] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This utility model embodiment provides an automatic carton sealing strip device, which is a further improvement on the structure disclosed in application number CN202311380687.1; a shape-maintaining structure is set to keep the two carton sheets horizontal, undeformed, as close as possible and parallel, so as to ensure the sealing effect. At the same time, the structure is simple and can be linked with the clamping and conveying structure for control, that is, the side pressure component is automatically controlled according to the carton width detected by the clamping and conveying structure to adapt to the width of the carton. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the automatic carton sealing strip device in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the side-pressure assembly;

[0021] Figure 3 This is a schematic diagram of the conveyor structure.

[0022] In the diagram: 1 Lifting frame, 2 Upper adhesive strip sealing structure, 3 Slide rod, 4 Top pressure assembly, 5 Side pressure assembly, 6 Pressure roller, 7 Carton, 8 Slide frame, 9 Fixing plate, 10 Cylinder. Detailed Implementation

[0023] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] See Figure 1-3 Example 1 provides an automatic carton sealing strip device, which includes a frame, a conveying structure, a lifting frame 1, a clamping and conveying structure, a sealing strip application structure 2, and a shape-retaining structure. The conveying structure is arranged in the front-to-back direction, and can specifically be a guide roller conveying structure, see [link to relevant documentation]. Figure 3 The frame is mounted on the conveyor structure. The lifting frame 1 is arranged longitudinally, slidably mounted on the frame, and can be driven up and down by a corresponding structure; it is located above the carton 7. The clamping conveyor structure can detect the width of the carton 7 (see the description in application CN202311380687.1), and is located adjacent to and above the conveyor structure, directly below the lifting frame 1. Two vertical conveyor belts on it can move synchronously towards or away from each other (driven by corresponding servo structures, allowing for a certain distance of movement). The vertical conveyor belts are arranged longitudinally, conveying backwards, and can move left and right. The two vertical conveyor belts are located on the left and right sides of the carton 7 respectively to center the carton 7 and convey it backwards. The top sealing strip structure 2 is arranged longitudinally, located directly above the middle of the conveyor structure, at the center line of the top of the carton 7; it is an existing structure.

[0026] The shape-maintaining structure includes two sets of sliding rods 3, two top-pressing components 4 (to ensure the carton sheets are level), two side-pressing components 5 (to ensure the carton 7 does not deform and the two carton sheets are pressed together or as close as possible), and a drive component for synchronously driving the two side-pressing components 5 to move left and right. The two top-pressing components 4 are fixed to the left and right sides of the upper adhesive strip sealing structure 2, located on the top of the carton 7, on the left and right sides of the adhesive strip, respectively, and have a friction conveyor belt along their front-to-back direction. Specifically, the front and rear ends of the top-pressing components 4 each have two driven wheels along the left-to-right direction, and the front and rear ends of the friction conveyor belt are wound around the two driven wheels. Support wheels (arranged along the left-to-right direction) can be installed on the top-pressing components 4 and above the friction conveyor belt. The friction conveyor belt presses against the top of the carton 7, and its surface has multiple anti-slip stripes arranged side-by-side (arranged along the left-to-right direction). The two sets of sliding rods 3 are located on the outer sides of the two top-pressing components 4 and between the corresponding sides of the lifting frame 1, and are both arranged along the left-to-right direction. Specifically, the left-side top-pressing assembly 4 is located between the left-side top-pressing assembly 4 and the left side of the lifting frame 1, and the right-side top-pressing assembly 4 is located between the right-side top-pressing assembly 4 and the right side of the lifting frame 1. Two sets of side-pressing assemblies 5 are slidably mounted on two sets of slide rods 3, moving synchronously towards or away from each other (driven by the drive assembly). These assemblies include a slide 8 and two pressure rollers 6 arranged side-by-side on it. When sealing the carton with tape, the two pressure rollers 6 on the same side (left or right) are located at the front and rear of the carton, respectively. Two slides 8 are slidably mounted on two sets of slide rods 3. The pressure rollers 6 are vertically arranged below the slides 8, pressing against the corresponding upper left or upper right end of the carton 7. Specifically, the pressure roller 6 of the left-side side-pressing assembly 5 presses against the upper left end of the carton 7; the pressure roller 6 of the right-side side-pressing assembly 5 presses against the upper right end of the carton 7. The movement distance of the side pressure component 5 is controlled according to the width of the carton 7 detected by the clamping and conveying structure, such as controlling the air supply time of the cylinder 10, or the cylinder 10 being a stroke cylinder.

[0027] In this embodiment of the invention, each set of slide rods 3 includes two pairs of slide rods arranged side by side and located at the front and rear of the top pressing assembly 4, respectively. Each slide rod pair includes two slide rods 3 arranged side by side. The slide rods 3 are arranged in the left-right direction, with their inner ends fixed to the outer side of the side pressing assembly 5 and their outer ends fixed to the corresponding side (left or right) of the lifting frame 1. Specifically, they are smooth round rods. The lifting frame 1 includes two side plates arranged side by side. The side plates are arranged in the front-back direction and are slidably (up and down) on the frame. The upper adhesive strip sealing structure 2 and the two side pressing assemblies 5 on both sides are fixed between the two side plates by the slide rods 3.

[0028] In this embodiment of the invention, the slide 8 is arranged in the front-to-back direction and includes two slide blocks arranged side-by-side and a connecting rod between them. The two slide blocks are slidably mounted on two pairs of slide rods on the same side, and both the slide blocks and the connecting rods are arranged in the front-to-back direction. Specifically, the slide block can be a rectangular block arranged in the front-to-back direction, and a pressure roller 6 is provided on the lower side of each slide block, so each side pressure assembly 5 is provided with two pressure rollers 6.

[0029] Furthermore, in this embodiment of the invention, the outer sides of both the front and rear ends of the top pressing assembly 4 are provided with fixing plates 9 (four in total). The fixing plates 9 are vertically arranged and extend upward relative to the top pressing assembly 4 to form an extension portion. The driving assembly includes four synchronously driven cylinders 10, which are arranged in the left-right direction and are respectively mounted on the four fixing plates 9. The outer end of the cylinder body of the cylinder 10 is fixed to the inner side of the corresponding fixing plate 9, and the outer end of its telescopic rod is fixed to the top of the corresponding slide (correspondingly provided with a fixing structure), which can be a stroke cylinder. Specifically, the front part of the upper adhesive strip sealing structure 2 is provided with two cylinders 10 opposite each other, and the two cylinders 10 are respectively used to drive the slide 8 on the same side. The rear part of the upper adhesive strip sealing structure 2 is provided with two cylinders 10 opposite each other, and the two cylinders 10 are respectively used to drive the slide 8 on the same side. The two front cylinders 10 are staggered vertically (preferably also staggered front to back) and are located above and in front of the upper adhesive strip sealing structure 2. The two rear cylinders 10 are staggered vertically (preferably also staggered front to back) and are located above and behind the upper adhesive strip sealing structure 2. When the cylinders 10 retract, the pressure rollers 6 press against the corresponding sides of the carton 7.

[0030] Example 2

[0031] Example 2 provides an automatic carton sealing device, which is basically the same in structure as Example 1, except that: the automatic carton sealing device in this embodiment further includes a folding flap structure (see the description in application number CN202311380687.1, including a front folding arm, a folding plate, a left folding arm, a right folding arm, etc.) and a lower sealing strip structure. The folding flap structure is located at the front of the lifting frame 1, arranged in the front-back direction, and is located directly in front of the upper sealing strip structure 2 (which is located at the rear of the lifting frame 1). The lower sealing strip structure is arranged in the front-back direction, located directly below the folding flap structure, and is located on the conveying structure (e.g., Figure 3 As shown, a rectangular area without guide rollers is installed in the middle of the conveyor structure, which is a common structure. Correspondingly, a first contact sensor and a second contact sensor are respectively provided at the front end and middle part of one of the vertical conveyor belts. The first contact sensor is used to control the vertical conveyor belt, detect the width of the carton 7, and control the folding structure to start working. The second contact sensor is used to control the side pressure assembly 5 to start working.

[0032] In this embodiment, "first" and "second" serve only as distinctions and have no other special meaning.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic carton sealing strip device, comprising a frame, a conveying structure arranged in a front-to-back direction, a lifting frame (1) on the frame, a clamping conveying structure directly below the lifting frame (1), and an upper sealing strip structure (2) on the lifting frame (1), wherein the upper sealing strip structure (2) is arranged in a front-to-back direction and is located directly above the middle of the conveying structure; the clamping conveying structure can detect the width of the carton (7), is located adjacent to the upper part of the conveying structure, and two vertical conveyor belts on it can move synchronously towards or away from each other; characterized in that, The device also includes a shape-retaining structure, which includes two sets of slide rods (3), two top-pressing components (4), two side-pressing components (5), and a drive component for synchronously driving the two side-pressing components (5) to move left and right; the two top-pressing components (4) are respectively fixed on the left and right sides of the upper adhesive strip sealing structure (2), which are located on the top of the carton (7), and a friction conveyor belt is provided on its upper edge in the front and back direction; the friction conveyor belt presses against the top of the carton (7); the two sets of slide rods (3) are respectively located on the outer side of the two top-pressing components (4) and the corresponding side of the lifting frame (1), and they are both arranged in the left and right direction; the two sets of side-pressing components (5) are respectively slidably arranged on the two sets of slide rods (3), which move synchronously towards or away from each other, and at least two pressure rollers (6) are arranged side by side on their upper and lower sides; the pressure rollers (6) are arranged vertically and press against the upper left or upper right side of the carton (7).

2. The automatic carton sealing strip device according to claim 1, characterized in that, Each set of slide rods (3) includes two pairs of slide rods arranged side by side and located at the front and rear of the top pressure assembly (4), respectively. Each slide rod pair includes two slide rods (3) arranged side by side. The slide rods (3) are arranged in the left and right direction, with their inner ends fixed to the outside of the side pressure assembly (5) and their outer ends fixed to the corresponding side of the lifting frame (1).

3. The automatic carton sealing strip device according to claim 2, characterized in that, The lifting frame (1) includes two side plates arranged side to the left and right. The side plates are arranged in the front-back direction and are slidably mounted on the frame. The upper adhesive strip sealing structure (2) and the two side pressure components (5) on both sides are fixed between the two side plates by slide rods (3).

4. The automatic carton sealing strip device according to claim 3, characterized in that, The side pressure assembly (5) also includes a slide (8), with two slides (8) slidably mounted on two sets of slide rods (3). The slide (8) is arranged in the front-to-back direction and includes two slide seats arranged side by side and a connecting rod between them. The two slide seats are slidably mounted on two pairs of slide rods on the same side, and the connecting rod is arranged in the front-to-back direction. A pressure roller (6) is provided on the lower side of each slide seat, so each side pressure assembly (5) is provided with two pressure rollers (6).

5. The automatic carton sealing strip device according to claim 4, characterized in that, The top pressing assembly (4) has a fixing plate (9) on the outer side of both the front and rear ends; the fixing plate (9) is vertically arranged and extends upward relative to the top pressing assembly (4); the driving assembly includes four synchronously driven cylinders (10), the four cylinders (10) are arranged in the left and right direction and are respectively arranged on the four fixing plates (9); the outer end of the cylinder body of the cylinder (10) is fixed to the inner side of the fixing plate (9), and the outer end of its telescopic rod is fixed to the corresponding slide; the two cylinders (10) at the front are staggered vertically and are located above the front of the upper adhesive strip sealing structure (2), and the two cylinders (10) at the rear are staggered vertically and are located above the rear of the upper adhesive strip sealing structure (2); when the cylinder (10) retracts, the pressure roller (6) presses against the corresponding side of the carton (7).

6. The automatic carton sealing strip device according to claim 1, characterized in that, The automatic carton sealing device also includes a folding sheet structure and a lower sealing strip structure; the folding sheet structure is located at the front of the lifting frame (1), and is arranged in the front-back direction, and is located directly in front of the upper sealing strip structure (2); the lower sealing strip structure is arranged in the front-back direction, and is located directly below the folding sheet structure, and is located on the conveying structure.

7. The automatic carton sealing strip device according to claim 6, characterized in that, One of the vertical conveyor belts is equipped with a first contact sensor and a second contact sensor at its front end and middle section, respectively. The first contact sensor is used to control the vertical conveyor belt and detect the width of the carton (7), and the second contact sensor is used to control the side pressure assembly (5).

8. The automatic carton sealing strip device according to claim 1, characterized in that, The surface of the friction conveyor belt is provided with multiple anti-slip stripes arranged side by side, and the anti-slip stripes are arranged in the left-right direction.

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