A side sealing mechanism for a carton sealing machine

Abstract

This utility model discloses a side sealing mechanism for a carton sealing machine, within the technical field of carton sealing equipment. It includes: a swing arm mechanism that swings towards the side seam of the carton to smooth the vertically pasted tape on the upper and lower side seams; two side sealing large brush assemblies, positioned on the same vertical plane with their brushes facing each other, respectively smoothing the horizontally pasted tape on the upper and lower side seams; and two tape applicator support arms, located above and below the carton respectively, and respectively equipped with an upper and lower side sealing tape applicator for pasting tape on the upper and lower side seams. This utility model utilizes the upper and lower side sealing tape applicators to seal the side seams of the carton with tape, and then, in conjunction with the side sealing large brush assemblies and the swing arm mechanism, smooths the tape that is suspended in the air after being applied to the side seams.

Description

Technical Field

[0001] This utility model relates to the field of carton sealing machine technology, and more specifically, to a side sealing mechanism for a carton sealing machine. Background Technology

[0002] Paper packaging machines utilize pre-formed cardboard to automatically and continuously package glass bottles, PET bottles, and cans. They are compatible with automated production lines in industries such as beer, beverages, food, and pharmaceuticals, and are especially suitable for secondary carton packaging when integrated with filling lines. The process includes bottle conveying, stacking, cardboard conveying, carton feeding, glue spraying, wrapping, and output.

[0003] In existing technologies, carton sealing machines typically use tape to seal the gaps between the top and bottom lids of the carton, as well as the lateral side gaps between the lid and the carton body, to ensure proper sealing. For the side gaps, a brush is usually used in a vertical direction to smooth out any loose tape, ensuring it adheres to the carton. However, the sealing effect is poor at the ends of the side gaps, i.e., the eight corners of the carton. Using only a vertical brush causes the loose tape to stick together, resulting in wrinkled tape pieces at the corners. This necessitates an additional cutting process to remove the wrinkled tape, increasing workload and reducing production efficiency. Therefore, we propose a carton sealing machine. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] The purpose of this utility model is to provide a side sealing mechanism for a carton sealing machine, so as to solve the problem mentioned in the background art that the tape sheet with only a single up-and-down brush will stick together when sealing the corners, resulting in wrinkles at the corners.

[0006] 2. Technical Solution

[0007] A side sealing mechanism for a carton sealing machine, comprising:

[0008] The swing arm mechanism swings towards the side seam of the carton to smooth out the vertically pasted tape in the upper and lower side seams;

[0009] Side sealing large brush assembly, two side sealing large brush assemblies are in the same vertical plane and the brushes face each other, respectively brushing the horizontally pasted tape in the upper and lower side seams;

[0010] Tape applicator support arms: Two tape applicator support arms are located at the top and bottom of the carton, respectively, and are equipped with a side-sealing upper tape applicator and a side-sealing lower tape applicator for applying tape to the gaps on the top and bottom sides of the carton.

[0011] In a preferred embodiment, the swing arm mechanism is located inside the machine housing. Inside the machine housing, along the direction of carton movement, a lower knife holder assembly two is arranged in sequence, an upper knife holder assembly one is arranged above it, and an upper knife holder two is arranged above the lower knife holder assembly two. Two tape applicator support arms are respectively installed on the side of the upper knife holder assembly one facing the lower knife holder assembly two, and two side sealing brush assemblies are respectively installed on the side of the lower knife holder assembly two and the upper knife holder two facing.

[0012] In a preferred embodiment, two sets of swing arm mechanisms are installed inside the chassis. The two sets of swing arm mechanisms are respectively installed above the lower tool post assembly 2, and each set of swing arm mechanisms is configured as two and symmetrically distributed.

[0013] In a preferred embodiment, the swing arm mechanism includes a side-sealing brush cylinder, a first brush swing arm assembly, a second brush swing arm assembly, a spline shaft, a spline bushing, and a connecting rod. The piston rod at the output end of the side-sealing brush cylinder is connected to the first brush swing arm assembly. The first and second brush swing arm assemblies are respectively sleeved and installed at both ends of the spline shaft. The spline bushing is installed outside the spline shaft at the position corresponding to the second brush swing arm assembly and is slidably connected to the spline shaft. The second brush swing arm assembly is kept synchronously raised and lowered with the first upper tool holder assembly through a connecting rod connected to the first upper tool holder assembly.

[0014] In a preferred embodiment, the connecting rod in the upper swing arm mechanism is fixedly connected to the upper tool holder assembly to maintain synchronous lifting and lowering, and the connecting rod in the swing arm mechanism above the lower tool holder assembly is fixedly connected to the upper tool holder assembly to maintain synchronous lifting and lowering.

[0015] In a preferred embodiment, the brush arm assembly includes a first brush arm, a first brush bending member, a first side-sealing small brush, and a first fixed seat for the brush arm. The first brush arm is configured in a "convex" shape. The top of the convex shape of the first brush arm is connected to the piston rod at the output end of the side-sealing brush cylinder. One end of the bottom of the convex shape of the first brush arm is fixedly connected to the first fixed seat for the brush arm. The first fixed seat for the brush arm is sleeved and installed outside the spline shaft. The other end of the bottom of the convex shape of the first brush arm is fixedly connected to the bent part of the first brush bending member. The first side-sealing small brush is installed and fixed at the lower end of the bent part of the first brush bending member.

[0016] In a preferred embodiment, the second brush arm assembly includes a second brush arm, a second brush bending component, a second side-sealing small brush, a second fixed seat for the brush arm, a lifting connecting seat, and a movable seat. The second brush arm is L-shaped, with one end fixedly connected to the second fixed seat for the brush arm and the other end fixedly connected to the second brush bending component. The second side-sealing small brush is installed at the bottom of the second brush bending component. The second fixed seat for the brush arm is fixedly connected to the bottom of the splined bushing. The movable seat is sleeved on the outside of the splined bushing. The lifting connecting seat is fixed to the side wall of the movable seat facing the second brush arm. A connecting rod is installed through the interior of the lifting connecting seat.

[0017] In a preferred embodiment, the device includes a lower cutter roller frame, a lower tape applicator, a lower tape applicator brush, a lower cutter first belt, a belt cover, and a belt seat. The lower tape applicator is installed in the middle of the lower cutter roller frame to apply tape to the bottom seam of the carton. The lower tape applicator brush is located in front of the lower tape applicator with the brush direction facing upward to smooth the tape pasted in the bottom seam. Belt seats are provided on both sides above the lower tape applicator. The lower cutter first belt is installed above the belt seats to drive the carton to move. A belt cover is provided on the outside of the lower cutter first belt.

[0018] In a preferred embodiment, the upper knife holder assembly includes an upper knife holder, an upper tape applicator, and an upper tape applicator brush. The upper knife holder is located at the top, and the upper tape applicator is installed at the middle position of the upper knife holder to apply tape to the top seam of the carton. The two connecting rods located at the top are connected to the side walls of the upper tape applicator to keep the lifting connecting seat and the upper knife holder assembly moving synchronously. The upper tape applicator brush is located in front of the upper tape applicator and the brush faces downward to smooth the tape pasted in the top seam.

[0019] In a preferred embodiment, the two side-sealing large brush assemblies are positioned by means of a telescopic mechanism. The side-sealing large brush assembly installed above the upper knife holder two has its brush facing the upper side gap of the carton, while the side-sealing large brush assembly installed below the lower knife holder two has its brush facing the lower side gap of the carton.

[0020] 3. Beneficial effects

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] 1. The side sealing mechanism designed in this utility model, through the cooperation of the swing arm mechanism, the side sealing large brush assembly, the side sealing upper tape applicator and the side sealing lower tape applicator, uses the side sealing upper tape applicator and the side sealing lower tape applicator to apply tape to seal the side seams of the carton. Then, with the cooperation of the side sealing large brush assembly and the swing arm mechanism, the tape that is suspended in the air after being applied to the side seams is smoothed out. Compared with the traditional tape applicator, which can only apply tape that is horizontally suspended after being pasted to the upper and lower side seams, it has the additional function of smoothing out the tape in the vertical state. There is no need to manually smooth out the tape in the vertical state, thus sealing all the side seams of the carton.

[0023] 2. This utility model designs a swing arm mechanism. The first and second brush swing arm components are synchronized by a spline shaft, ensuring that the first and second side sealing small brushes simultaneously brush the gaps on the upper and lower sides of the carton. In addition, a spline bushing is set on the spline shaft. The distance between the first and second brush swing arm components is adjusted by sliding the height of the spline bushing to match cartons of different heights, thus adapting to more different types of cartons. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of the brush swing arm mechanism installed inside the chassis;

[0025] Figure 2 for Figure 1 Internal structure diagram;

[0026] Figure 3 This is a structural diagram of the lower tool post assembly one and the lower tool post assembly two during assembly;

[0027] Figure 4 This is a schematic diagram of the swing arm mechanism;

[0028] Figure 5 This is a schematic diagram of the lower tool holder assembly.

[0029] Figure 6 A schematic diagram of a set of swing arm mechanisms installed on the upper tool post assembly;

[0030] Figure 7 A schematic diagram of a set of swing arm mechanisms installed on the lower tool post assembly 2;

[0031] Figure 8 A schematic diagram of the structure for mounting the side-sealed tape applicator on the tape applicator support arm;

[0032] Figure 9 A schematic diagram of the structure for mounting the side-sealed lower tape applicator on the tape applicator support arm;

[0033] Explanation of the labels in the diagram:

[0034] 100. Swing arm mechanism;

[0035] 110. Side-sealed brush cylinder; 120. Brush swing arm assembly one; 130. Brush swing arm assembly two; 140. Splined shaft; 150. Splined shaft sleeve; 160. Connecting rod;

[0036] 121. First brush arm; 122. First brush bending component; 123. First side-sealing small brush; 124. First fixing seat of brush arm;

[0037] 131. Second brush arm; 132. Second brush bending component; 133. Second side sealing brush; 134. Second fixed seat for brush arm; 135. Lifting connecting seat; 136. Moving seat;

[0038] 200. Lower blade holder assembly 1; 210. Lower blade holder roller frame 1; 220. Lower tape applicator; 230. Lower tape applicator brush; 240. Lower blade holder first belt; 250. Belt cover; 260. Belt seat;

[0039] 300. Lower tool holder assembly two;

[0040] 400. Upper blade holder assembly 1; 410. Upper blade holder 1; 420. Tape applicator; 430. Tape applicator brush;

[0041] 500. Upper knife holder two;

[0042] 600. Side-sealed large brush assembly;

[0043] 700. Tape applicator support arm;

[0044] 800. Side sealing tape applicator;

[0045] 900. Side sealing tape applicator. Detailed Implementation

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] Please see Figure 1-9 This embodiment provides a side sealing mechanism for a carton sealing machine, including a swing arm mechanism 100, a side sealing large brush assembly 600, a tape applicator support arm 700, a side sealing upper tape applicator 800, and a side sealing lower tape applicator 900. For ease of description, the gap when the two top covers of the carton are closed is referred to as the top gap, the gap when the two bottom covers of the carton are closed is referred to as the bottom gap, the gap between the two top covers of the carton and the carton body when closed is referred to as the upper side gap, and the gap between the two bottom covers of the carton and the carton body when closed is referred to as the lower side gap. Therefore, the carton has six gaps: a top gap, a bottom gap, two upper side gaps, and two lower side gaps.

[0050] During the process of sealing the gaps on the top and bottom sides with tape, half of the tape is adhered to the cardboard of the carton, while the other half is suspended in the air. The suspended part is further divided into a longer horizontal suspended tape and a shorter vertical suspended tape. Therefore, a brush is needed to smooth out the suspended half of the tape so that the suspended tape adheres to the cardboard of the carton.

[0051] in:

[0052] The swing arm mechanism 100 is configured in two groups, swinging towards the side seam of the carton to smooth out the remaining vertical tape after the upper and lower side seams are sealed with tape. The two side sealing large brush assemblies 600 are on the same vertical plane with the brushes facing each other, and are used to smooth out the remaining horizontal tape after the upper and lower side seams are sealed with tape. The two tape applicator support arms 700 are located at the top and bottom of the carton, respectively. The upper and lower tape applicator support arms 700 are respectively equipped with the upper side sealing tape applicator 800 and the lower side sealing tape applicator 900 to seal the upper and lower side seams of the carton with tape.

[0053] It is worth mentioning that the swing arm mechanism 100 is located inside the chassis. Inside the chassis, along the direction of carton movement, a lower knife holder assembly 200 and a lower knife holder assembly 300 are arranged sequentially. Above the lower knife holder assembly 200, an upper knife holder assembly 400 is arranged, and above the lower knife holder assembly 300, an upper knife holder assembly 500 is arranged. Two tape applicator support arms 700 are respectively installed on the side of the lower knife holder assembly 200 and the upper knife holder assembly 400 facing the lower knife holder assembly 300. Two side sealing brush assemblies are also present. Component 600 is installed on the side of the lower knife holder assembly 300 and the upper knife holder 500 facing the lower knife holder assembly 200, respectively; the upper and lower two side sealing brush assemblies 600 are used to seal the gaps at the top of the carton with tape, and the side sealing mechanism is used to seal the six gaps at the top of the carton. The lower knife holder assembly 200, the lower knife holder assembly 300, the upper knife holder assembly 400, the upper knife holder 500, the side sealing brush assembly 600, and the side sealing mechanism form an integrated carton sealing machine.

[0054] Please refer to the instruction manual attached. Figure 2 , 3 7. Two sets of swing arm mechanisms 100 are installed inside the chassis. The two sets of swing arm mechanisms 100 are respectively installed above the lower knife post assembly 200 and the lower knife post assembly 300. Each set of swing arm mechanisms 100 consists of two symmetrically distributed components. When the carton enters the carton along with the lower knife post assembly 200, the side sealing upper tape applicator 800 and the side sealing lower tape applicator 900 seal the upper and lower side seams of the front end of the carton with tape. Then, the two swing arm mechanisms 100 above the lower knife post assembly 300 move the tape from both sides toward the sides of the carton. The oscillating motion of the gaps smooths out the remaining vertical tape after the top and bottom side gaps are sealed with tape, and works in conjunction with the side sealing brush assembly 600 to smooth out the remaining horizontal tape after the top and bottom side gaps are sealed with tape, thus smoothing out the tape after the top and bottom side gaps at the front of the carton. As the carton continues to move forward, similarly, the swing arm mechanism 100 located above the lower knife holder assembly 200 works in conjunction with the side sealing brush assembly 600 to smooth out the tape after the top and bottom side gaps at the rear of the carton, thus completing the sealing of the four side gaps of the carton.

[0055] Please refer to the instruction manual attached. Figure 4 The swing arm mechanism 100 in this embodiment will be described in detail below:

[0056] The swing arm mechanism 100 includes a side-sealing brush cylinder 110, a first brush swing arm assembly 120, a second brush swing arm assembly 130, a splined shaft 140, a splined bushing 150, and a connecting rod 160. The piston rod at the output end of the side-sealing brush cylinder 110 is connected to the first brush swing arm assembly 120. The first brush swing arm assembly 120 and the second brush swing arm assembly 130 are respectively sleeved and installed at both ends of the splined shaft 140. The splined bushing 150 is installed on the outside of the splined shaft 140. The brush arm assembly 130 is positioned and slidably connected to the spline shaft 140. The brush arm assembly 130 is connected to the upper tool holder assembly 400 by the connecting rod 160. The output end of the side sealing brush cylinder 110 extends forward, causing the brushes in the brush arm assembly 120 and the brush arm assembly 130 to swing, thereby smoothing out the remaining vertical adhesive tape after the upper and lower side seams are sealed.

[0057] Specifically:

[0058] The brush arm assembly 120 includes a first brush arm 121, a first brush bending member 122, a first side-sealing small brush 123, and a first fixed seat 124 for the brush arm. The first brush arm 121 is convex in shape. The top of the convex shape of the first brush arm 121 is connected to the piston rod at the output end of the side-sealing brush cylinder 110. One end of the convex bottom of the first brush arm 121 is fixedly connected to the first fixed seat 124 for the brush arm. The first fixed seat 124 for the brush arm is sleeved and installed outside the spline shaft 140. The other end of the convex bottom of the first brush arm 121 is fixedly connected to the bent part of the first brush bending member 122. The first side-sealing small brush 123 is mounted and fixedly installed. The piston rod at the output end of the side sealing brush cylinder 110 extends forward from the lower end of the bending part of the first brush bending member 122, pushing the first brush swing arm 121 to swing inward, that is, to swing towards the carton. The first brush swing arm 121 drives the first side sealing small brush 123 to swing through the first brush bending member 122, so that the first side sealing small brush 123 contacts the vertical tape, thereby brushing the tape onto the cardboard of the carton. Furthermore, since the first fixing seat 124 of the brush swing arm is fixedly connected to the first brush swing arm 121 and the first fixing seat 124 of the brush swing arm is fixed on the spline shaft 140, when the first brush swing arm 121 swings, it will drive the spline shaft 140 to swing synchronously.

[0059] The second brush arm assembly 130 includes a second brush arm 131, a second brush bending component 132, a second side-sealing small brush 133, a second brush arm fixing seat 134, a lifting connecting seat 135, and a movable seat 136. The second brush arm 131 is L-shaped, with one end fixedly connected to the second brush arm fixing seat 134 and the other end fixedly connected to the second brush bending component 132. The second side-sealing small brush 133 is installed at the bottom of the second brush bending component 132. The second brush arm fixing seat 134 and the second side-sealing small brush 133 are connected to the second brush arm fixing seat 136. The bottom of the spline bushing 150 is fixedly connected, the movable seat 136 is sleeved on the outside of the spline bushing 150, and the lifting connecting seat 135 is fixed to the side wall of the movable seat 136 facing the second brush arm 131. The connecting rod 160 is installed through the interior of the lifting connecting seat 135. The cooperation between the spline bushing 150 and the spline shaft 140 has two functions: first, to keep the spline bushing 150 able to slide on the spline shaft 140 to adjust its position; second, to keep the spline bushing 150 rotating synchronously with the spline shaft 140.

[0060] Specifically, the brush swing arm assembly 130 is described as follows: When the spline shaft 140 swings, the spline shaft 140 drives the second fixed seat 134 of the brush swing arm to swing through the spline shaft sleeve 150. The second fixed seat 134 of the brush swing arm drives the second side sealing small brush 133 to swing inward, that is, to swing towards the carton, through the second brush swing arm 131 and the second brush bending part 132. It works together with the first side sealing small brush 123 to brush the tape on one side of the upper and lower side seams at the same end of the carton. Each set of swing arm mechanisms 100 can brush the tape on both sides of the upper and lower side seams at the same end of the carton. The two sets of swing arm mechanisms 100 can brush the tape on the upper and lower side seams at the front and rear ends of the carton in the vertical state when sealing.

[0061] When sealing the side seams of cartons of different heights, the height of the brush swing arm assembly 130 needs to be adjusted. At this time, the height of the lifting connecting rod 160 is adjusted, and the connecting rod 160 drives the lifting connecting seat 135 to rise and fall, which in turn drives the moving seat 136 to rise and fall. With the cooperation of the spline bushing 150 and the spline shaft 140, the moving seat 136 can be adjusted to the specified height. The lifting method of the connecting rod 160 is described below.

[0062] Please refer to the instruction manual attached. Figure 5 The lower tool holder assembly 200 in this embodiment will be described in detail below:

[0063] The lower cutter assembly 200 includes a lower cutter roller frame 210, a tape applicator 220, a tape applicator brush 230, a first lower cutter belt 240, a belt cover 250, and a belt seat 260. The tape applicator 220 is installed in the middle of the lower cutter roller frame 210 to apply tape to the bottom seam of the carton. The tape applicator brush 230 is located in front of the tape applicator 220 with the brush facing upwards to smooth the tape pasted in the bottom seam. Belt seats 260 are provided on both sides above the tape applicator 220. A first belt 240 for the lower knife holder is installed above 260 to drive the carton to move. The first belt 240 for the lower knife holder is existing technology. A belt cover 250 is installed on the outside of the first belt 240 for the lower knife holder. When the carton enters above the lower knife holder roller frame 210, both sides move forward along the rollers installed on the lower knife holder roller frame 210 under the drive of the first belt 240 for the lower knife holder. During the movement, the tape applicator 220 completes the tape application and sealing and the tape is smoothed by the tape applicator brush 230 to complete the tape application and sealing of the bottom seam of the carton.

[0064] Please refer to the instruction manual attached. Figure 6 The upper tool holder assembly 400 in this embodiment will be described in detail below:

[0065] The upper knife holder assembly 400 includes an upper knife holder 410, an upper tape applicator 420, and an upper tape applicator brush 430. The upper knife holder 410 is located above the lower knife holder assembly 200. The upper tape applicator 420 is installed in the middle of the upper knife holder 410 to apply tape to the top seam of the carton. Two connecting rods 160 located above the lower knife holder assembly 200 are connected to the side walls of the upper tape applicator 420 to keep the lifting connecting seat 135 moving synchronously with the upper knife holder assembly 400. The upper tape applicator brush 430 is located in front of the upper tape applicator 420 with the brush facing downward to smooth the tape pasted at the top seam. As the carton moves forward along the lower knife holder assembly 200, the upper tape applicator 420 completes the tape sealing of the top seam of the carton, and the upper tape applicator brush 430 smooths the tape to complete the tape sealing of the top seam of the carton.

[0066] Please refer to the instruction manual attached. Figure 4 , 6 7. In this embodiment, the lifting and lowering method of the connecting rod 160 is as follows: the connecting rod 160 in the swing arm mechanism 100 located above the lower tool holder assembly 200 is fixedly connected to the upper tool holder assembly 400 to maintain synchronous lifting and lowering, and the connecting rod 160 in the swing arm mechanism 100 located above the lower tool holder assembly 300 is fixedly connected to the upper tool holder 500 to maintain synchronous lifting and lowering.

[0067] Reference Figure 4 , 6The connecting rod 160 in a set of swing arm mechanisms 100 located above the lower tool holder assembly 200 is described in detail: The two connecting rods 160 in this set of swing arm mechanisms 100 are symmetrically installed on both sides of the upper tape applicator 420. The connecting rods 160 are not shown in the figure, but are connected in combination with… Figure 4 It is easy to imagine that one end of the connecting rod 160 is connected to the side wall of the upper tape applicator 420, and the other end of the connecting rod 160 passes through the lifting connecting seat 135 and is connected to the inner side wall of the upper tool holder 410. Therefore, when the upper tool holder assembly 400 is raised or lowered, the connecting rod 160 can be adjusted to change position. The raising and lowering method of the upper tool holder assembly 400 can adopt conventional technical means, such as telescopic rods, hydraulic cylinders, electric push rods, etc. This is existing technology and will not be described in detail here.

[0068] Reference Figure 4 , 7 The connecting rod 160 in the set of swing arm mechanisms 100 located above the lower tool holder assembly 2 300 is described in detail: The two connecting rods 160 in this set of swing arm mechanisms 100 are symmetrically installed on both sides inside the upper tool holder 2 500. One end of the connecting rod 160 passes through the lifting connecting seat 135 and connects to the inner side wall of the upper tool holder 2 500. The other end of the connecting rod 160 can be suspended or fixed to the side wall of the upper tool holder 2 500 by a connector. No limitation is made here. Therefore, when the upper tool holder 2 500 is raised or lowered, the connecting rod 160 can be driven to adjust its position. The raising and lowering method of the upper tool holder 2 500 can refer to the existing technology.

[0069] Continue to refer to the instruction manual appendix Figure 7 The side sealing large brush assembly 600 in this embodiment will be specifically described as follows: The two side sealing large brush assemblies 600 are adjusted in position by a telescopic mechanism. The telescopic mechanism can adopt conventional technologies in the prior art, such as hydraulic cylinders, telescopic rods, electric push rods, etc., and will not be limited in detail here. The side sealing large brush assembly 600 installed above the upper knife holder 2 500 has its brush facing the upper side gap of the carton, and the side sealing large brush assembly 600 installed below the lower knife holder 2 300 has its brush facing the lower side gap of the carton. The two brushes move towards the middle of the carton, thereby brushing the remaining horizontal state of the tape after the upper and lower side gaps are sealed.

[0070] In summary: After the carton enters the machine, the top and bottom seams are sealed with tape first by the action of the lower knife holder assembly 200 and the upper knife holder assembly 400. Then, according to the direction of carton movement, the top and bottom seams of the front end of the carton are sealed with tape first, and the top and bottom seams of the rear end of the carton are sealed with tape to complete the sealing of all six seams, especially the four side seams.

[0071] The tape applicator, belt, etc. involved in this embodiment can adopt conventional technical means in the prior art. The supporting drive structure, transmission structure and control system can also be provided by the manufacturer. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve the improvement of the internal structure and method.

[0072] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A side sealing mechanism for a carton sealing machine, characterized in that, include: The swing arm mechanism (100) swings toward the side seam of the carton to smooth out the vertically pasted tape on the upper and lower side seams; Side sealing large brush assembly (600), two side sealing large brush assemblies (600) are on the same vertical plane and the brushes face each other, respectively brushing the tape that is horizontally pasted in the upper and lower side gaps; Tape applicator support arm (700), two tape applicator support arms (700) are located at the top and bottom of the carton respectively, and are respectively equipped with a side-sealing upper tape applicator (800) and a side-sealing lower tape applicator (900) for applying tape to the gaps on the top and bottom sides of the carton.

2. The side sealing mechanism for a carton sealing machine according to claim 1, characterized in that: The swing arm mechanism (100) is located inside the machine casing. Inside the machine casing, along the direction of carton movement, a lower knife holder assembly 1 (200) and a lower knife holder assembly 2 (300) are arranged in sequence. An upper knife holder assembly 1 (400) is arranged above the lower knife holder assembly 1 (200), and an upper knife holder assembly 2 (500) is arranged above the lower knife holder assembly 2 (300). Two tape applicator support arms (700) are respectively installed on the side of the lower knife holder assembly 1 (200) and the upper knife holder assembly 1 (400) facing the lower knife holder assembly 2 (300). Two side sealing brush assemblies (600) are respectively installed on the side of the lower knife holder assembly 2 (300) and the upper knife holder assembly 2 (500) facing the lower knife holder assembly 1 (200).

3. The side sealing mechanism for a carton sealing machine according to claim 2, characterized in that: Two sets of swing arm mechanisms (100) are installed inside the chassis. The two sets of swing arm mechanisms (100) are respectively installed above the lower tool post assembly one (200) and the lower tool post assembly two (300). Each set of swing arm mechanisms (100) is set to two and is symmetrically distributed.

4. The side sealing mechanism for a carton sealing machine according to claim 3, characterized in that: The swing arm mechanism (100) includes a side-sealing brush cylinder (110), a first brush swing arm assembly (120), a second brush swing arm assembly (130), a spline shaft (140), a spline bushing (150), and a connecting rod (160). The piston rod at the output end of the side-sealing brush cylinder (110) is connected to the first brush swing arm assembly (120). The first brush swing arm assembly (120) and the second brush swing arm assembly (130) are respectively sleeved and installed at both ends of the spline shaft (140). The spline bushing (150) is installed outside the spline shaft (140) at the position corresponding to the second brush swing arm assembly (130) and is slidably connected to the spline shaft (140). The second brush swing arm assembly (130) is kept in sync with the first upper tool holder assembly (400) by a connecting rod (160) connected to the first upper tool holder assembly (400).

5. The side sealing mechanism for a carton sealing machine according to claim 4, characterized in that: The connecting rod (160) in the swing arm mechanism (100) located above the lower tool post assembly (200) is fixedly connected to the upper tool post assembly (400) to maintain synchronous lifting and lowering. The connecting rod (160) in the swing arm mechanism (100) located above the lower tool post assembly (300) is fixedly connected to the upper tool post assembly (500) to maintain synchronous lifting and lowering.

6. The side sealing mechanism for a carton sealing machine according to claim 4, characterized in that: The brush arm assembly (120) includes a first brush arm (121), a first brush bending member (122), a first side-sealing small brush (123), and a first fixed seat (124) for the brush arm. The first brush arm (121) is convex in shape. The convex top of the first brush arm (121) is connected to the piston rod at the output end of the side-sealing brush cylinder (110). One end of the convex bottom of the first brush arm (121) is fixedly connected to the first fixed seat (124) for the brush arm. The first fixed seat (124) for the brush arm is sleeved and installed outside the spline shaft (140). The other end of the convex bottom of the first brush arm (121) is fixedly connected to the bent part of the first brush bending member (122). The first side-sealing small brush (123) is installed and fixed at the lower end of the bent part of the first brush bending member (122).

7. The side sealing mechanism for a carton sealing machine according to claim 6, characterized in that: The second brush arm assembly (130) includes a second brush arm (131), a second brush bending component (132), a second side-sealing small brush (133), a second fixed seat for the brush arm (134), a lifting connecting seat (135), and a movable seat (136). The second brush arm (131) is L-shaped, with one end fixedly connected to the second fixed seat for the brush arm (134) and the other end fixedly connected to the second brush bending component (132). A second side-sealing small brush (133) is installed at the bottom of the brush bending part (132). The second fixed seat (134) of the brush swing arm is fixedly connected to the bottom of the spline bushing (150). The movable seat (136) is sleeved on the outside of the spline bushing (150). The lifting connecting seat (135) is fixed to the side wall of the movable seat (136) facing the second brush swing arm (131). The connecting rod (160) is installed through the inside of the lifting connecting seat (135).

8. The side sealing mechanism for a carton sealing machine according to claim 7, characterized in that: The lower knife holder assembly (200) includes a lower knife holder roller frame (210), a lower tape applicator (220), a lower tape applicator brush (230), a lower knife holder first belt (240), a belt cover (250), and a belt seat (260). The lower tape applicator (220) is installed in the middle of the lower knife holder roller frame (210) to apply tape to the bottom seam of the carton. The lower tape applicator brush (230) is located in front of the lower tape applicator (220) with the brush direction facing upward to smooth the tape pasted in the bottom seam. Belt seats (260) are provided on both sides above the lower tape applicator (220). The lower knife holder first belt (240) is installed above the belt seat (260) to drive the carton to move. The belt cover (250) is covered on the outside of the lower knife holder first belt (240).

9. A side sealing mechanism for a carton sealing machine according to claim 7, characterized in that: The upper knife holder assembly (400) includes an upper knife holder (410), an upper tape applicator (420), and an upper tape applicator brush (430). The upper knife holder (410) is located above the lower knife holder assembly (200). The upper tape applicator (420) is installed in the middle of the upper knife holder (410) to apply tape to the top seam of the carton. Two connecting rods (160) located above the lower knife holder assembly (200) are connected to the two side walls of the upper tape applicator (420) to keep the lifting connecting seat (135) and the upper knife holder assembly (400) moving up and down synchronously. The upper tape applicator brush (430) is located in front of the upper tape applicator (420) with the brush facing downwards to smooth the tape pasted at the top seam.

10. A side sealing mechanism for a carton sealing machine according to claim 7, characterized in that: The two side sealing brush assemblies (600) are adjusted in position by a telescopic mechanism. The side sealing brush assembly (600) installed above the upper knife holder (500) has its brush facing the upper side gap of the carton, and the side sealing brush assembly (600) installed below the lower knife holder assembly (300) has its brush facing the lower side gap of the carton.

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