A carton sealing machine

Abstract

This utility model discloses a carton sealing machine in the field of carton sealing equipment technology. It includes: a frame, with a lower knife holder assembly one for carton feeding and a lower knife holder assembly two for carton discharging arranged sequentially along the carton's moving direction; two symmetrically distributed side sealing brush mechanisms; a side sealing upper tape applicator and a side sealing lower tape applicator respectively mounted on upper and lower support arms; and a side brush swing arm mechanism. This utility model can package cartons of different sizes and specifications. Simply place the carton onto the lower knife holder assembly one, and the sealing process is automatically completed. Furthermore, it can seal six gaps—the top gap when the top lid is closed, the bottom gap when the bottom lid is closed, the upper side gap between the top lid and the carton body, and the lower side gap between the bottom lid and the carton body—with tape, and further smooth the tape to achieve a complete seal of all gaps in the carton, resulting in excellent sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of carton packaging equipment technology, and more specifically, to a carton packaging 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, when sealing the gaps in a carton, carton sealing machines typically apply tape to the gap where the top and bottom lids of the carton are closed. The tape is then smoothed out with a brush to ensure proper sealing. However, they often neglect the side gaps, i.e., the horizontal gaps between the lid and the carton body. Even when tape is applied to the side gaps, tape applicators are simply placed above and below the gap, and brushes are used to smooth the tape by moving the brushes up and down to seal the gaps. However, when the tape applicators apply tape to the side gaps, the tape extends downwards on both sides. This extension of tape is often overlooked when the brushes smooth it out, causing the tape to stick at the ends of the side gaps, resulting in poor sealing.

[0004] Therefore, traditional carton sealing machines cannot simultaneously seal all six gaps or properly seal the side gaps when sealing the gaps in a carton. In view of this, we propose a new carton sealing machine. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this invention is to provide a carton sealing machine to solve the problem mentioned in the background art that the single up-and-down oriented brush causes the suspended tape to stick together when sealing the corners, resulting in oblique tape pieces at the corners.

[0007] 2. Technical Solution

[0008] A carton sealing machine, comprising:

[0009] The frame has a lower knife holder assembly 1 for feeding the carton and a lower knife holder assembly 2 for discharging the carton arranged sequentially along the direction of carton movement. An upper knife holder assembly is installed above the lower knife holder assembly 1 and an upper knife holder assembly 2 is installed above the lower knife holder assembly 2. The lower knife holder assembly 1 and the upper knife holder assembly are used to tape the gap between the two top covers of the carton to keep the top covers of the carton sealed.

[0010] Two symmetrically distributed side sealing brush mechanisms are installed at the ends of the lower knife holder assembly 2 and the upper knife holder 2 near the lower knife holder assembly 1, respectively. The brushes are arranged opposite each other in the vertical direction to smooth the tape in the gap between the carton body and the upper and lower covers.

[0011] Side sealing upper tape applicator and side sealing lower tape applicator are respectively installed on the upper and lower support arms. The side sealing upper tape applicator is installed on the side of the upper blade holder assembly facing the upper blade holder two, and applies tape to the connection between the box body and the upper cover. The side sealing lower tape applicator is installed on the side of the lower blade holder assembly facing the lower blade holder assembly two, and applies tape to the connection between the box body and the lower cover. The side sealing upper tape applicator and the side sealing lower tape applicator are raised and lowered by a tape applicator lifting assembly.

[0012] The side brush swing arm mechanism attaches the sealing tape for the side of the carton to the surface of the carton.

[0013] In a preferred embodiment, the lower knife holder assembly includes a lower knife holder roller frame, a lower tape applicator, a lower tape applicator brush, and a lower knife holder first belt. The lower tape applicator is located in the middle of the lower knife holder roller frame and applies tape to the gap between the two top covers of the carton. The lower tape applicator brush, with its brush facing upwards, is positioned in front of the lower knife holder assembly to smooth the tape applied to the bottom of the carton. The lower knife holder first belts, located on both sides above the lower knife holder roller frame, drive the carton forward to complete the sealing process.

[0014] In a preferred embodiment, the second lower knife holder assembly includes a second lower knife holder roller frame and a second lower knife holder belt. The second lower knife holder belts, which are symmetrically distributed on both sides above the second lower knife holder roller frame, drive the packaged carton forward.

[0015] In a preferred embodiment, the upper knife holder assembly includes an upper knife holder one, an upper tape applicator, and an upper tape applicator brush. The upper tape applicator is installed in the middle of the upper knife holder one to apply tape to the gap between the two top covers of the carton. The upper tape applicator brush is positioned in front of the upper knife holder two and faces downwards to smooth the tape pasted on the top of the carton.

[0016] In a preferred embodiment, the side sealing brush mechanism includes a telescopic component one and a telescopic component two, wherein the telescopic component one extends and retracts to adjust the position of the telescopic component two.

[0017] In a preferred embodiment, the telescopic assembly includes a brush cylinder fixing plate, a first brush cylinder, and a brush slider fixing plate. The brush cylinder fixing plate is installed above the upper blade holder. The first brush cylinder is installed above the brush cylinder fixing plate. The piston rod at the output end of the first brush cylinder is connected to the brush slider fixing plate. The brush slider fixing plate is slidably installed above the brush cylinder fixing plate through a slider rail mechanism.

[0018] In a preferred embodiment, the telescopic assembly two includes a second brush cylinder, a third brush cylinder, and a side-sealing large brush. The second brush cylinder is disposed above the brush slider fixing plate. The piston rod at the output end of the second brush cylinder passes through the brush slider fixing plate and is connected to the third brush cylinder. The piston rod at the output end of the third brush cylinder is connected to the side-sealing large brush. The two side-sealing large brushes are on the same vertical plane.

[0019] In a preferred embodiment, the number of the tape applicator lifting assemblies is two, and the two tape applicator lifting assemblies are respectively located on both sides of the lower blade holder assembly.

[0020] The tape applicator lifting assembly includes a fixed shaft, a box-type slider, a tape applicator cylinder plate, and a tape applicator cylinder. Each tape applicator lifting assembly has one fixed shaft and two sets of other structures, which are located on the back of the support arm where the upper and lower tape applicators are located and connected by the lower tape applicator. The box-type slider and the tape applicator cylinder plate are fixedly connected to the support arm. The piston rod at the output end of the tape applicator cylinder is fixedly connected to the tape applicator cylinder plate to push the tape applicator cylinder plate to move. The box-type slider is sleeved outside the fixed shaft and slidably connected to the fixed shaft.

[0021] In a preferred embodiment, a tape-mounting synchronization assembly is provided between the two tape-mounting lifting assemblies to maintain synchronization. The tape-mounting synchronization assembly includes a tape-mounting synchronization shaft. A first tape-mounting fixing plate is provided on the back side of the support arm near both ends of the tape-mounting synchronization shaft. A bearing is provided inside the first tape-mounting fixing plate to support the tape-mounting synchronization shaft. Tape-mounting synchronization gears are respectively installed at both ends of the tape-mounting synchronization shaft passing through the first tape-mounting fixing plate. A second tape-mounting fixing plate is provided at the bottom end of the lower blade holder assembly near the tape-mounting synchronization gear. A tape-mounting rack is fixedly connected to the side wall of the second tape-mounting fixing plate near the tape-mounting synchronization gear. The tape-mounting synchronization gear and the tape-mounting rack are meshed together.

[0022] In a preferred embodiment, the side brush swing arm mechanism includes several brush swing arm assemblies. Each brush swing arm assembly includes a vertically arranged splined shaft, a splined shaft slider is mounted above the splined shaft, and a rotatable first brush swing arm is arranged below the splined shaft slider. The first brush swing arm is bent and a vertically arranged first side sealing brush is mounted at its front end. A side sealing brush cylinder is arranged below the first brush swing arm. The side sealing brush cylinder is bent and a vertically arranged second brush swing arm is mounted on it. A second side sealing brush is arranged on one side of the side sealing brush cylinder. The piston rod at the output end of the second side sealing brush is connected to the side sealing brush cylinder. Both the first brush swing arm and the side sealing brush cylinder rotate synchronously with the splined shaft.

[0023] 3. Beneficial effects

[0024] Compared with existing technologies, the advantages of this utility model are:

[0025] 1. Through the overall structural design of this utility model, it is possible to package cartons of different sizes and specifications. Simply place the carton on the lower knife holder assembly, and the sealing process of the carton will be completed automatically. In addition, it can seal six gaps with tape: the top gap when the top lid of the carton is closed, the bottom gap when the bottom lid of the carton is closed, the upper side gap between the top lid and the carton body, and the lower side gap between the bottom lid and the carton body. The tape is further smoothed to achieve a complete seal of all gaps in the carton, resulting in excellent sealing effect and improved production efficiency.

[0026] 2. This utility model uses a brush swing arm assembly to smooth the tape on the vertically suspended part when the tape applicator seals the side gaps. Combined with the side sealing brush mechanism, it ensures that the tape sealing the side gaps is applied to the cardboard in an orderly and tight manner, thereby sealing all six gaps.

[0027] 3. This utility model, through the design of the tape applicator lifting assembly and the tape applicator lifting synchronization assembly, enables the upper and lower side-sealed tape applicators to move synchronously when their positions are raised and lowered. The tape applicator lifting synchronization assembly can be used to avoid slight errors caused by the movement of the two tape applicator lifting assemblies and to avoid structural jamming during lifting. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model from a first-person perspective;

[0029] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;

[0030] Figure 3 This is a schematic diagram of the internal structure of the frame of this utility model;

[0031] Figure 4This is a schematic diagram of the structure at the feeding position of the cardboard box of this utility model;

[0032] Figure 5 This is a structural schematic diagram of the lower tool holder assembly of this utility model;

[0033] Figure 6 This is a schematic diagram of the upper tool holder assembly of this utility model;

[0034] Figure 7 This is a schematic diagram of the structure of the cardboard box feeding component of this utility model;

[0035] Figure 8 This is a schematic diagram of the lower tool holder assembly two of this utility model;

[0036] Figure 9 This is a schematic diagram of the side sealing brush mechanism of this utility model;

[0037] Figure 10 This is a schematic diagram of the side-sealing tape applicator of this utility model;

[0038] Figure 11 This is a schematic diagram of the side-sealing under-tape applicator of this utility model;

[0039] Figure 12 This is a schematic diagram of the structure of the tape applicator lifting assembly and the tape applicator lifting synchronization assembly of this utility model;

[0040] Figure 13 This is a schematic diagram of the structure of the brush swing arm assembly of this utility model;

[0041] Explanation of the labels in the diagram:

[0042] 100. Rack;

[0043] 200. Lower tool holder assembly 1; 210. Lower tool holder roller frame 1; 220. Lower tape applicator; 230. Lower tape applicator brush; 240. Lower tool holder first belt;

[0044] 300. Lower tool post assembly two; 310. Lower tool post roller frame two; 320. Lower tool post second belt;

[0045] 400. Upper blade holder assembly; 410. Upper blade holder one; 420. Tape applicator; 430. Tape applicator brush;

[0046] 500. Upper knife holder two;

[0047] 600. Side sealing brush mechanism;

[0048] 610. Telescopic component one; 611. Brush cylinder fixing plate; 612. First brush cylinder; 613. Brush slider fixing plate;

[0049] 620. Telescopic component two; 621. Second brush cylinder; 622. Third brush cylinder; 623. Side-sealing large brush;

[0050] 700. Side sealing tape applicator;

[0051] 800. Side sealing tape applicator;

[0052] 900. Tape applicator lifting assembly; 910. Fixed shaft; 920. Box-type slider; 930. Tape applicator cylinder plate; 940. Tape applicator cylinder;

[0053] 1000. Tape applicator lifting synchronization assembly; 1010. Tape applicator lifting synchronization shaft; 1020. Tape applicator lifting first fixed plate; 1030. Tape applicator lifting synchronization gear; 1040. Tape applicator lifting second fixed plate; 1050. Tape applicator lifting rack;

[0054] 1100. Brush swing arm assembly;

[0055] 1110, Splined shaft; 1120, Splined shaft slider; 1130, First swing arm of brush; 1140, First small side seal brush; 1150, Second swing arm of brush; 1160, Second small side seal brush; 1170, Cylinder of side seal brush. Detailed Implementation

[0056] 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.

[0057] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0058] 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.

[0059] Please see Figure 1-13 This embodiment provides a carton sealing machine, including a frame 100, a side sealing brush mechanism 600, a side sealing upper tape applicator 700, a side sealing lower tape applicator 800, and a side brush swing arm mechanism. 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 is referred to as the upper side gap, and the gap between the two bottom covers of the carton and the carton body 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. When sealing the gaps with tape, half of the tape adheres to the cardboard of the carton, while the other half is suspended. Therefore, a brush is needed to smooth the suspended half of the tape so that the suspended tape adheres to the cardboard of the carton.

[0060] in:

[0061] Reference Figure 3 Inside the frame 100, along the direction of carton movement, a lower knife holder assembly 200 for carton feeding and a lower knife holder assembly 300 for carton discharging are sequentially arranged. An upper knife holder assembly 400 is installed above the lower knife holder assembly 200, and an upper knife holder assembly 500 is installed above the lower knife holder assembly 300. (Refer to...) Figure 4 The lower knife holder assembly 200 and the upper knife holder assembly 400 respectively apply tape to the top and bottom gaps of the carton to keep the upper and lower lids of the carton sealed. Specifically, when the carton is packed with goods and moved into the rack 100 for tape sealing, the upper knife holder assembly 400 seals the two upper lids of the carton with tape, and similarly, the lower knife holder assembly 200 seals the two lower lids of the carton with tape.

[0062] Two side sealing brush mechanisms 600 are provided and symmetrically distributed. The two side sealing brush mechanisms 600 are respectively installed at the ends of the lower knife holder assembly 200 and the upper knife holder 2500 near the lower knife holder assembly 200. The brushes are arranged opposite each other in the vertical direction to brush the tape at the gap between the carton body and the upper and lower covers.

[0063] The upper side sealing tape applicator 700 and the lower side sealing tape applicator 800 are respectively mounted on the upper and lower support arms. Please refer to the attached document for the support arms. Figure 10 , Figure 11The aluminum profiles used are existing technology and will not be described in detail here. Specifically: the upper side sealing tape applicator 700 is installed on the side of the upper knife holder assembly 400 facing the second upper knife holder 500, and applies tape to the upper side seam of the carton; the lower side sealing tape applicator 800 is installed on the side of the lower knife holder assembly 200 facing the second lower knife holder assembly 300, and applies tape to the lower side seam of the carton; the upper and lower side sealing tape applicators 700 are raised and lowered by the tape applicator lifting assembly 900 to accommodate cartons of different heights.

[0064] Reference Figure 7 When the front end of the carton moves to the junction of the lower knife holder assembly 200 and the lower knife holder assembly 300, the side sealing upper tape applicator 700 seals the upper side seam of the front end of the carton with tape. Similarly, the side sealing lower tape applicator 800 seals the lower side seam of the front end of the carton with tape. When sealing, the tape length will be slightly longer than the side seam length, and the excess tape length will be adhered to both sides of the carton, forming a horizontal "L" shape on both sides of the side seam. At this time, part of the tape suspended at the side seam is in a horizontal state, and another part is in a vertical state. The specific length is determined by the length of the sealing tape being greater than the side seam length, which can be fully understood by those skilled in the art and will not be elaborated on here.

[0065] After packaging, the side brush swing arm mechanism located on both sides of the carton is used to brush the part of the tape that is vertically suspended flat, so that this part of the tape adheres to the front cardboard of the carton and avoids the tape bulging out.

[0066] Afterwards, the upper and lower side sealing brush mechanisms 600 smooth the tape, so that the part of the tape that is in a horizontal suspended state adheres to the front cardboard of the carton. After smoothing the upper and lower side seams of the front of the carton, the carton continues to move to the rear end, where it is located at the junction of the lower knife holder assembly 200 and the lower knife holder assembly 300. The upper side sealing tape applicator 700 and the lower side sealing tape applicator 800 use the same operation to seal the upper and lower side seams of the rear end of the carton with tape, and then the upper and lower side seams of the rear end of the carton are sealed and smoothed by the side brush swing arm mechanisms on both sides and the upper and lower side sealing brush mechanisms 600.

[0067] Please refer to the instruction manual. Figure 5The following is a detailed description of the lower blade holder assembly 200 in this embodiment: The lower blade holder assembly 200 includes a lower blade holder roller frame 210, a lower tape applicator 220, a lower tape applicator brush 230, and a lower blade holder first belt 240. The lower tape applicator 220 is located in the middle of the lower blade holder roller frame 210 and is used to apply tape to the gap between the two upper covers of the carton. The lower tape applicator 220 can be any existing tape applicator, which can be easily implemented by those skilled in the art, and will not be described in detail here. The lower tape applicator 220 faces... A tape applicator brush 230 with its brush facing upwards is installed in front of the second lower cutter assembly 300 to smooth the tape pasted on the bottom of the carton. The tape applicator 220 first seals the bottom gap with tape. When the carton moves above the first lower cutter assembly 200, the tape applicator brush 230 will smooth the tape to ensure the quality of tape sealing. The first lower cutter belt 240 is installed on both sides above the first lower cutter roller frame 210. The first lower cutter belt 240 drives the carton forward to complete the sealing process.

[0068] Please refer to the instruction manual. Figure 8 The following is a detailed description of the second lower blade holder assembly 300 in this embodiment: The second lower blade holder assembly 300 includes a second lower blade holder roller frame 310 and a second lower blade holder belt 320. The second lower blade holder belts 320 are symmetrically distributed on both sides above the second lower blade holder roller frame 310, which drive the packaged carton forward to discharge. When the carton moves from the first lower blade holder assembly 200 to the second lower blade holder assembly 300, the second lower blade holder belts 320 drive the carton forward from both sides to complete the packaging process and discharge the carton.

[0069] Please refer to the instruction manual. Figure 6 The upper knife holder assembly 400 in this embodiment is described in detail below: The upper knife holder assembly 400 includes an upper knife holder 1 410, an upper tape applicator 420, and an upper tape applicator brush 430. The upper tape applicator 420 is installed in the middle of the upper knife holder 1 410 to apply tape to the top gap of the carton. The upper tape applicator 420 is positioned in front of the upper knife holder 2 500, and the upper tape applicator brush 430 is positioned downward to smooth the tape pasted on the top of the carton. Specifically, as the carton moves from the lower knife holder assembly 1 200 to the lower knife holder assembly 2 300, the upper tape applicator brush 430 will brush the tape from above to make the tape more evenly seal the top gap.

[0070] Please refer to the instruction manual. Figure 9 The side sealing brush mechanism 600 in this embodiment is described as follows: The side sealing brush mechanism 600 includes a telescopic component 1 610 and a telescopic component 2 620, and the telescopic component 1 610 telescopically adjusts the position of the telescopic component 2 620.

[0071] Specifically, the telescopic assembly 610 includes a brush cylinder fixing plate 611, a brush first cylinder 612, and a brush slider fixing plate 613. The brush cylinder fixing plate 611 is installed above the upper blade holder 500. The brush first cylinder 612 is installed above the brush cylinder fixing plate 611. The piston rod at the output end of the brush first cylinder 612 is connected to the brush slider fixing plate 613. The brush slider fixing plate 613 is slidably installed above the brush cylinder fixing plate 611 through a slider rail mechanism. The slider rail mechanism can use existing slider rail technology, which can be fully implemented by those skilled in the art, so it will not be described in detail here. The piston rod at the output end of the brush first cylinder 612 pushes the brush slider fixing plate 613 to slide above the brush cylinder fixing plate 611 to adjust the position of the telescopic assembly 620. This is the first adjustment.

[0072] Furthermore, the telescopic component 620 includes a second brush cylinder 621, a third brush cylinder 622, and a side-sealing large brush 623. The second brush cylinder 621 is positioned above the brush slider fixing plate 613. The piston rod at the output end of the second brush cylinder 621 passes through the brush slider fixing plate 613 and connects to the third brush cylinder 622. The piston rod at the output end of the third brush cylinder 622 connects to the side-sealing large brush 623. The two side-sealing large brushes 623 are on the same vertical plane. The piston rod at the output end of the second brush cylinder 621 pushes the third brush cylinder 622 to adjust its position. This is the second adjustment. Through the two adjustments, the adjustable distance is greatly increased without affecting the stability during use. After the position of the side-sealing large brush 623 is adjusted to above the side gap, the output end of the third brush cylinder 622 extends, thereby pushing the side-sealing large brush 623 to smooth the tape after sealing the side gap.

[0073] Please refer to the instruction manual. Figure 12 The following describes the tape applicator lifting assembly 900 and the tape applicator lifting synchronization assembly 1000 in this embodiment: There are two tape applicator lifting assemblies 900, and the two tape applicator lifting assemblies 900 are located on both sides of the lower blade holder assembly 200.

[0074] Specifically, the tape applicator lifting assembly 900 includes a fixed shaft 910, a box-type slider 920, a tape applicator cylinder plate 930, and a tape applicator cylinder 940. In each tape applicator lifting assembly 900, except for the fixed shaft 910 which is provided as one unit, the remaining structures are arranged in two groups, located on the back side of the support arm where the upper tape applicator 700 and the lower tape applicator 800 are located, respectively, and connected via the lower tape applicator 800. This explanation will take the structure on the back side of the support arm where the lower tape applicator 800 is located as an example. (Refer to...) Figure 12Both the box-type slider 920 and the tape applicator cylinder plate 930 are fixedly connected to the support arm. The piston rod at the output end of the tape applicator cylinder 940 is fixedly connected to the tape applicator cylinder plate 930 to push the tape applicator cylinder plate 930 to move. The box-type slider 920 is sleeved on the outside of the fixed shaft 910 and slidably connected to the fixed shaft 910. When the tape applicator cylinder 940 is activated, the piston rod at the output end of the tape applicator cylinder 940 pushes the tape applicator cylinder plate 930 to move. The tape applicator cylinder plate 930 drives the support arm to move. When the support arm moves, the box-type slider 920 slides above the fixed shaft 910 as an auxiliary. In this way, the position adjustment of the lower side sealing tape applicator 800 is realized. Similarly, the position adjustment of the upper side sealing tape applicator 700 can also be realized. By adjusting the position of the upper side sealing tape applicator 700 and the lower side sealing tape applicator 800, different sizes of cartons can be adapted.

[0075] Furthermore, a tape applicator lifting synchronization component 1000 is provided between the two tape applicator lifting assemblies 900 to maintain synchronization. The tape applicator lifting synchronization component 1000 includes a tape applicator lifting synchronization shaft 1010. A tape applicator lifting first fixing plate 1020 is provided at both ends of the tape applicator lifting synchronization shaft 1010 on the back side of the support arm. Bearings are provided inside the tape applicator lifting first fixing plate 1020 to support the tape applicator lifting synchronization shaft 1010. Tape applicator lifting synchronization gears 1030 are respectively installed at both ends of the tape applicator lifting first fixing plate 1020. A tape applicator lifting second fixing plate 1040 is provided at the bottom end of the lower blade holder assembly 200 near the tape applicator lifting synchronization gear 1030. A tape applicator lifting rack 1050 is fixedly connected to the side wall of the tape applicator lifting second fixing plate 1040 near the tape applicator lifting synchronization gear 1030. The lifting synchronous gear 1030 and the tape applicator lifting rack 1050 are meshed together. In this embodiment, the tape applicator lifting synchronous assembly 1000 on the back side of the side-sealed tape applicator 800 is used as an example for explanation: When the tape applicator lifting assembly 900 pushes the side-sealed tape applicator 800 to adjust its position, the tape applicator lifting second fixing plates 1040 on both sides of the tape applicator lifting synchronous shaft 1010 move their positions with the adjustment of the side-sealed tape applicator 800. The movement of the tape applicator lifting second fixing plates 1040 drives the tape applicator lifting rack 1050 to move. The tape applicator lifting rack 1050 drives the tape applicator lifting synchronous shaft 1010 to rotate through meshing with the tape applicator lifting synchronous gear 1030. The tape applicator lifting synchronous shaft 1010 keeps both sides rotating synchronously, that is, it ensures that the entire support arm moves up and down synchronously while keeping it horizontal, avoiding the slight error that may occur when the tape applicator cylinders 940 on both sides are hydraulic.

[0076] Please refer to the instruction manual. Figure 13The brush arm assembly 1100 in this embodiment is described as follows: The side brush arm mechanism includes a plurality of brush arm assemblies 1100. In this embodiment, the number of brush arm assemblies 1100 is set to four, divided into two groups, and installed on the lower blade holder assembly 1 200 and the lower blade holder assembly 2 300 respectively. In each group, two brush arm assemblies 1100 are symmetrically distributed on both sides of the lower blade holder assembly 1 200.

[0077] The brush arm assembly 1100 includes a vertically arranged spline shaft 1110, a spline shaft slider 1120 mounted above the spline shaft 1110, and the position is adjusted by sliding the spline shaft slider 1120 on the spline shaft 1110 to adapt to different sizes of cartons. A rotatable brush first swing arm 1130 is arranged below the spline shaft slider 1120. The brush first swing arm 1130 is bent and a vertically arranged side sealing first small brush 1140 is mounted at the front end. When the side sealing first small brush 1140 rotates, it can brush the vertical suspended tape portion at the side seam of the sealed carton flat, so that the tape sticks to the front face cardboard of the carton.

[0078] Below the first brush arm 1130, a second brush arm 1150 is set. The second brush arm 1150 is bent and a vertically set side sealing second small brush 1160 is installed. A side sealing brush cylinder 1170 is set on one side of the second brush arm 1150. The piston rod of the output end of the side sealing brush cylinder 1170 is connected to the second brush arm 1150. When the side sealing second small brush 1160 rotates, it can brush the vertical suspended tape part at the bottom side gap of the packaged carton flat, so that the tape sticks to the front cardboard of the carton.

[0079] Since the piston rod at the output end of the side sealing brush cylinder 1170 is connected to the second swing arm 1150 of the brush, and both the first swing arm 1130 and the second swing arm 1150 of the brush rotate synchronously with the spline shaft 1110, when the piston rod at the output end of the side sealing brush cylinder 1170 extends, it will push the second swing arm 1150 of the brush to swing. Since the second swing arm 1150 of the brush, the first swing arm 1130 of the brush, and the spline shaft 1110 rotate synchronously, the first swing arm 1130 of the brush and the second swing arm 1150 of the brush swing synchronously, thereby simultaneously brushing the tape in the gap between the upper and lower sides to flatten it and make the tape adhere to the carton.

[0080] In this embodiment, the belt, tape applicator, hydraulic cylinder, etc., can all be conventional products from the prior art. The supporting hydraulic system, valve circuit, pipeline, etc. 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 any improvement to the internal structure and method.

[0081] 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 carton sealing machine, characterized in that, include: The frame (100) has a lower knife holder assembly 1 (200) for feeding the carton and a lower knife holder assembly 2 (300) for discharging the carton arranged sequentially along the direction of the carton's movement. An upper knife holder assembly (400) is installed above the lower knife holder assembly 1 (200), and an upper knife holder assembly 2 (500) is installed above the lower knife holder assembly 2 (300). The lower knife holder assembly 1 (200) and the upper knife holder assembly (400) are used to tape the gap between the two top covers of the carton to keep the top covers of the carton sealed. Two symmetrically distributed side sealing brush mechanisms (600) are installed at the ends of the lower knife holder assembly 2 (300) and the upper knife holder 2 (500) near the lower knife holder assembly 1 (200), respectively. The brushes are arranged opposite each other in the vertical direction to brush the tape at the gap between the carton body and the upper and lower covers. Side sealing upper tape applicator (700) and side sealing lower tape applicator (800) are respectively installed on the upper and lower support arms, wherein: the side sealing upper tape applicator (700) is installed on the side of the upper knife holder assembly (400) facing the upper knife holder two (500) to apply tape to the connection between the box and the upper cover; the side sealing lower tape applicator (800) is installed on the side of the lower knife holder assembly one (200) facing the lower knife holder assembly two (300) to apply tape to the connection between the box and the lower cover; the side sealing upper tape applicator (700) and the side sealing lower tape applicator (800) are raised and lowered by tape applicator lifting assembly (900); The side brush swing arm mechanism attaches the sealing tape for the side of the carton to the surface of the carton.

2. The carton sealing machine according to claim 1, characterized in that: The first lower knife holder assembly (200) includes a first lower knife holder roller frame (210), a tape applicator (220), a tape applicator brush (230), and a first lower knife holder belt (240). The tape applicator (220) is located in the middle of the first lower knife holder roller frame (210) and is used to apply tape to the gap between the two top covers of the carton. The tape applicator (220) is positioned in front of the second lower knife holder assembly (300) with the brush direction facing upward to smooth the tape applied to the bottom of the carton. The first lower knife holder belt (240) is positioned on both sides above the first lower knife holder roller frame (210) to drive the carton forward to complete the sealing process.

3. A carton sealing machine according to claim 1, characterized in that: The lower cutter assembly 2 (300) includes a lower cutter roller frame 2 (310) and a lower cutter second belt (320). The lower cutter roller frame 2 (310) is symmetrically distributed with the lower cutter second belt (320) installed on both sides above it to drive the packaged carton forward.

4. A carton sealing machine according to claim 1, characterized in that: The upper knife holder assembly (400) includes an upper knife holder one (410), an upper tape applicator (420), and an upper tape applicator brush (430). The upper tape applicator (420) is installed in the middle of the upper knife holder one (410) to apply tape to the gap between the two upper covers of the carton. The upper tape applicator (420) is positioned in front of the upper knife holder two (500), and the upper tape applicator brush (430) facing downwards is used to smooth the tape pasted on the top of the carton.

5. A carton sealing machine according to claim 1, characterized in that: The side sealing brush mechanism (600) includes a telescopic component one (610) and a telescopic component two (620), wherein the telescopic component one (610) adjusts the position of the telescopic component two (620).

6. A carton sealing machine according to claim 5, characterized in that: The telescopic assembly one (610) includes a brush cylinder fixing plate (611), a brush first cylinder (612), and a brush slider fixing plate (613). The brush cylinder fixing plate (611) is installed above the upper knife holder two (500). The brush first cylinder (612) is installed above the brush cylinder fixing plate (611). The piston rod at the output end of the brush first cylinder (612) is connected to the brush slider fixing plate (613). The brush slider fixing plate (613) is slidably installed above the brush cylinder fixing plate (611) through a slider slide rail mechanism.

7. A carton sealing machine according to claim 6, characterized in that: The telescopic assembly two (620) includes a second brush cylinder (621), a third brush cylinder (622), and a side-sealing large brush (623). The second brush cylinder (621) is located above the brush slider fixing plate (613). The piston rod at the output end of the second brush cylinder (621) passes through the brush slider fixing plate (613) and is connected to the third brush cylinder (622). The piston rod at the output end of the third brush cylinder (622) is connected to the side-sealing large brush (623). The two side-sealing large brushes (623) are on the same vertical plane.

8. A carton sealing machine according to claim 1, characterized in that: The number of the tape applicator lifting assembly (900) is two, and the two tape applicator lifting assemblies (900) are located on both sides of the lower blade holder assembly (200); The tape applicator lifting assembly (900) includes a fixed shaft (910), a box-type slider (920), a tape applicator cylinder plate (930), and a tape applicator cylinder (940). In each tape applicator lifting assembly (900), except for the fixed shaft (910), which is set as one, the rest of the structure is set as two sets, and they are respectively located on the back side of the support arm where the upper tape applicator (700) and the lower tape applicator (800) are located, and connected through the lower tape applicator (800). The box-type slider (920) and the tape applicator cylinder plate (930) are both fixedly connected to the support arm. The piston rod at the output end of the tape applicator cylinder (940) is fixedly connected to the tape applicator cylinder plate (930) to push the tape applicator cylinder plate (930) to move. The box-type slider (920) is sleeved outside the fixed shaft (910) and slidably connected to the fixed shaft (910).

9. A carton sealing machine according to claim 8, characterized in that: A synchronous assembly (1000) for synchronizing the lifting of two tape applicator assemblies (900) is provided between them. The synchronous assembly (1000) includes a tape applicator lifting synchronous shaft (1010). A first fixing plate (1020) for tape applicator lifting is provided at both ends of the synchronous shaft (1010) on the back side of the support arm. A bearing is provided inside the first fixing plate (1020) to support the synchronous shaft (1010). The synchronous shaft (1010) for tape applicator lifting passes through the first fixing plate (900). A tape-feeding device lifting synchronous gear (1030) is installed at both ends of a fixed plate (1020). A second fixed plate (1040) for tape-feeding device lifting is provided at the bottom end of the lower blade holder assembly (200) near the tape-feeding device lifting synchronous gear (1030). The tape-feeding device lifting rack (1050) is fixedly connected to the side wall of the second fixed plate (1040) near the tape-feeding device lifting synchronous gear (1030). The tape-feeding device lifting synchronous gear (1030) and the tape-feeding device lifting rack (1050) are meshed together.

10. A carton sealing machine according to claim 1, characterized in that: The side brush swing arm mechanism includes several brush swing arm assemblies (1100). Each brush swing arm assembly (1100) includes a vertically arranged splined shaft (1110). A splined shaft slider (1120) is mounted above the splined shaft (1110). A rotatable first brush swing arm (1130) is arranged below the splined shaft slider (1120). The first brush swing arm (1130) is bent and has a vertically arranged side sealing first small brush (1140) mounted at its front end. A side-sealing brush cylinder (1150) is provided below the first brush. The side-sealing brush cylinder (1150) is bent and a vertically arranged second brush arm (1160) is installed. A side-sealing second small brush (1170) is provided on one side of the side-sealing brush cylinder (1150). The piston rod of the output end of the side-sealing second small brush (1170) is connected to the side-sealing brush cylinder (1150). The first brush arm (1130) and the side-sealing brush cylinder (1150) rotate synchronously with the spline shaft (1110).

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