Carton folding score marking apparatus

By introducing a drying component and a drive roller structure into the carton creasing device, the problems of difficult recycling and manual adjustment after creasing damp cartons are solved, realizing automated drying and positioning, and improving creasing quality and production efficiency.

CN224375017UActive Publication Date: 2026-06-19JIANGMEN ZHONGSEN PAPER PACKAGING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGMEN ZHONGSEN PAPER PACKAGING CO LTD
Filing Date
2025-01-17
Publication Date
2026-06-19

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Abstract

This utility model discloses a cardboard box folding and creasing device, relating to the field of cardboard box production technology. The utility model includes a machine base; a drive roller is embedded in the upper side wall of the machine base; pressure rollers are embedded above the drive roller and in the front and rear side walls of the machine base; an electric heating column is embedded in the upper side wall of a crossbar in the drying assembly; the shaft end of the crossbar is connected to a pneumatic rod via a connecting rod; a hanger is mounted on the machine base; a sliding plate is slidably connected to the hanger; a lifting frame is sleeved on the sliding plate; a water tank is snapped into the upper side wall of the lifting frame; the lifting frame is connected to a creasing box in the creasing assembly via a hydraulic rod; a water storage tank is embedded in the upper side wall of the creasing box; and a creasing roller is embedded in the bottom of the creasing box, with a sponge sleeve inside the roller. This utility model utilizes the drying assembly to electrically heat and dry the creasing area of ​​the cardboard box to accelerate moisture evaporation; and the cooperation of the drive roller and pressure rollers enables automatic feeding and unloading of the cardboard box.
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Description

Technical Field

[0001] This utility model belongs to the field of cardboard box production technology, and in particular relates to a cardboard box folding and indentation device. Background Technology

[0002] Cardboard boxes are one of the most common packaging equipment at present. The production process of cardboard boxes requires a variety of processes, including a creasing device used to crease the folds of the cardboard box. The creasing device is mainly driven by a motor or hydraulic rod, and the creasing knife on its shaft end is attached to the outer wall of the cardboard box. Then, force is applied to achieve the effect of creasing the cardboard box.

[0003] A Chinese patent application (or patent) with publication number CN221366046U discloses a cardboard creasing device, including a support mounted on an operating table, a cylinder mounted on the support, a mounting base mounted on the cylinder, a hollow creasing knife mounted at the bottom of the mounting base, a water-wetting structure inside the hollow creasing knife, the water-wetting structure being mounted on the support, and a positioning structure on the operating table adapted to the hollow creasing knife. This invention, through the water-wetting structure, allows water from a water tank to flow into a buffer water box when creasing cardboard, enabling a sponge to absorb moisture. Then, the cylinder is activated, causing the hollow creasing knife to slide downwards. The sponge pre-contacts the cardboard to moisten it, reducing its surface dryness. As the hollow creasing knife continues to slide downwards, the buffer water box and sponge are squeezed into the hollow creasing knife, which then creasing the moistened cardboard. This prevents the cardboard from cracking during creasing and improves processing quality.

[0004] The aforementioned carton creasing device has a water-wetting structure mounted on its support. This structure supplies water to the buffer water box and sponge inside the hollow creasing knife, making them moist. The creasing action is then completed as the hollow creasing knife adheres to and presses against the outer wall of the carton. However, while creasing is easier in moist conditions, the damp carton is difficult to recycle after creasing. Furthermore, the operating table supports the carton to be creasing, but lacks a driving and pressing / positioning structure on its perimeter. Therefore, manual adjustment or support of the carton is required during creasing, leading to large operational errors, low yield, and hindering production. To address these issues, we provide a carton folding creasing device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a cardboard box folding and creasing device. By using a drying component, the creasing area of ​​the cardboard box can be electrically heated and dried to accelerate the evaporation of moisture. By using the cooperation of the drive roller and the pressure roller, the cardboard box can be automatically fed and unfurled, thus solving the problems of the aforementioned cardboard box creasing device.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a cardboard box folding and creasing device, comprising a machine base, with a support column welded to the bottom side wall of the machine base; a drive roller is embedded in the upper side wall of the machine base, and pressure rollers are embedded above the drive roller and in the front and rear side walls of the machine base; a drying assembly is installed on the central axis of the machine base, with an electric heating column embedded in the upper side wall of the crossbar in the drying assembly, and the shaft end of the crossbar connected to a pneumatic rod via a connecting rod; a hanger is mounted on the machine base, with a sliding plate slidably connected to the hanger, and a lifting frame is sleeved on the sliding plate, with a water tank snapped onto the upper side wall of the lifting frame; a hydraulic rod is detachably fixed to the bottom side wall of the lifting frame, and the lifting frame is connected to the creasing box in the creasing assembly via the hydraulic rod; a water tank is embedded in the upper side wall of the creasing box, and a creasing wheel is embedded in the bottom of the creasing box; a water outlet is opened on the outer wall of the creasing wheel, and the creasing wheel is filled with a sponge sleeve.

[0008] The present invention is further configured such that there are multiple drive rollers, with gaps between the multiple drive rollers, and two pressure rollers are respectively provided on one drive roller, with the pressure rollers respectively located at both ends of the drive roller.

[0009] The present invention is further configured such that the pressure roller and the drive roller are located on the same vertical axial plane, the pressure roller and the drive roller are separated by a gap, and a wheel axle is inserted at the center of the pressure roller, and the wheel axle of the pressure roller is rotatably connected to the side wall of the machine base.

[0010] The present invention is further configured such that the drying component is horizontally arranged on the central axis surface of the machine tool, and connecting rods are fixedly installed at both ends of the crossbar, and the other end of the connecting rod is also connected to the shaft end of the pneumatic rod.

[0011] The present invention is further configured such that sliding grooves are provided in the front and rear side walls of the hanger, the hanger is slidably connected to the slider through the sliding grooves, and the slider is welded to the two shaft ends of the slide plate.

[0012] The present invention is further configured such that a water supply pipe is installed on the water storage tank, and a water valve is installed on the water supply pipe, and the water supply pipe is connected to the water storage tank through the water valve. A groove is opened at the bottom of the indentation box, and a rotating rod is inserted through the groove.

[0013] The present invention is further configured such that the indentation box is rotatably connected to the indentation wheel via a rotating rod, the indentation wheel has a hollow groove, and the sponge sleeve is disposed in the hollow groove inside the indentation wheel.

[0014] The present invention is further configured such that a cover plate is provided at the end of the empty groove of the indentation wheel, and the empty groove inside the indentation wheel is connected to the tank groove through a water outlet.

[0015] This utility model has the following beneficial effects:

[0016] This invention features a drying assembly installed on the central axis of the machine. The drying assembly includes a crossbar and an electric heating column embedded thereon. The crossbar contacts the bottom side wall of the carton through the electric heating column, thereby heating and drying the crease area to accelerate the evaporation of moisture. Pneumatic rods are also provided at both ends of the crossbar, which can raise or lower the height of the crossbar to better fit the carton.

[0017] This invention features a machine base, drive rollers, and pressure rollers. Multiple drive rollers are mounted on the machine base with gaps between them. Pressure rollers are rotatably connected to the inner walls of the machine base at both ends of the drive rollers. The axles of the pressure rollers are inserted into the inner walls of the machine base via cylindrical inserts. Each pressure roller is positioned opposite a drive roller. In use, the two ends of the carton to be creasing are placed between the drive rollers and pressure rollers. The drive rollers then rotate, gradually feeding the carton forward until it is directly beneath the creasing assembly. The feeding and unloading of the carton can be adjusted by changing the rotation direction of the drive rollers.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a cardboard box folding and indentation device.

[0021] Figure 2 This is a schematic diagram of the machine tool.

[0022] Figure 3 This is a schematic diagram of the drying assembly.

[0023] Figure 4This is a structural schematic diagram of the hanger.

[0024] Figure 5 This is a structural disassembly diagram of the drive assembly, slide plate, and water tank.

[0025] Figure 6 This is a structural disassembly diagram of the indentation assembly.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1-Machine base, 2-Support column, 3-Drive roller, 4-Pressure roller, 5-Drying assembly, 501-Crossbar, 502-Heating column, 503-Connecting rod, 504-Pneumatic rod, 6-Hanger, 601-Slide groove, 7-Drive assembly, 701-Servo motor, 702-Lead screw, 8-Slide plate, 801-Slider, 802-Lifting frame, 803-Hydraulic rod, 9-Water tank, 901-Water pipe, 10-Indentation assembly, 1001-Indentation box, 1001a-Box groove, 1002-Water tank, 1003-Rotating rod, 1004-Indentation roller, 1004a-Water outlet, 1004b-Cover plate, 1004c-Sponge sleeve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0029] Please see Figure 1-3 This utility model is a cardboard box folding and creasing device, including a machine base 1. A drive roller 3 is provided on the machine base 1 to provide power support for the conveying of the cardboard box. Then, the pressure rollers 4 at both ends of the drive roller 3 can press the two ends of the cardboard box to ensure the stability of the cardboard box conveying. At the same time, a drying component 5 is also installed on the machine base 1, which can be used to dry the damp creasing position on the cardboard box.

[0030] Specifically, a support column 2 is welded to the bottom of the machine base 1, and a drive roller 3 is installed inside the machine base 1. Pressure rollers 4 are rotatably connected to both ends of the drive roller 3 and the inner wall of the machine base 1. A drying assembly 5 is set at the center of the machine base 1. An electric heating column 502 is embedded in the upper side wall of the crossbar 501 in the drying assembly 5, and the shaft end of the crossbar 501 is connected to the pneumatic rod 504 through the connecting rod 503.

[0031] Furthermore, each of the two shaft ends of the drive roller 3 is correspondingly provided with a pressure roller 4, and the pressure roller 4 is made of rubber wheel material. At the same time, a gap is provided between the pressure roller 4 and the drive roller 3. A crossbar 501 is horizontally provided on the machine base 1, and each of the two shaft ends of the crossbar 501 is provided with a connecting rod 503.

[0032] The operation process of this embodiment is as follows: When in use, the carton to be creasing is placed between the drive roller 3 and the pressure roller 4, and then the drive roller 3 is started. At that time, the drive roller 3 rotates and provides a forward driving force to the bottom of the carton. With the cooperation of the pressure roller 4, the carton is gradually embedded and advanced. Then, while the carton is being creasing, the pneumatic rod 504 works and extends, moving the crossbar 501 on its shaft end upward, and contacting the bottom side wall of the carton creasing position through the electric heating column 502, so as to heat and dry it. Example 2

[0033] Please see Figure 4-5 Based on embodiment 1, a hanger 6 is also provided. By using the drive component 7, the slide plate 8 can be moved on the hanger 6, thereby achieving the effect of adjusting the position of the slide plate 8 and the water tank 9 and the indentation component 9 on it.

[0034] Specifically, a slide plate 8 is slidably mounted on the hanger 6, and the slide plate 8 slides in the groove 601 in the hanger 6 through a slider 801 on its shaft end. The slider 801 is connected to the lead screw 702 in the drive assembly 7 through a drive nut, and the shaft end of the lead screw 702 is also connected to the servo motor 701. A lifting frame 802 is also sleeved on the outer wall of the slide plate 8, and a water tank 9 is snapped onto the upper side wall of the lifting frame 802.

[0035] Furthermore, there are two sets of drive components 7, which are located at both ends of the slide plate 8. A water supply pipe 901 is also installed on the water tank 9, and the water supply pipe 901 is connected to the water storage tank 1002 in the indentation component 10 through a valve. A hydraulic rod 803 can also be detachably and fixedly installed at the bottom of the hoisting frame 802.

[0036] The operation process of this embodiment is as follows: When in use, the servo motor 701 in the drive component 7 works, which drives the slide plate 8 to move in the slide groove 601 through the lead screw 702, thereby achieving the effect of adjusting the position of the slide plate 8 on the hanger 6. The water supply pipe 901 is opened through the valve, so that the water in the water storage tank 9 can flow into the water storage tank 1002 through the water supply pipe 901. Example 3

[0037] Please see Figure 6Based on Embodiments 1 and 2, a creasing assembly 10 is also provided. The creasing assembly 10 can creasing the carton on the machine 1. While creasing, the water tank 1002 in the creasing wheel 1004 can supply water to the sponge sleeve 1004c under the water supply of the water tank 9, thereby wetting the creasing position of the carton and making the creasing work easier.

[0038] Specifically, the upper side wall of the indentation box 1001 in the indentation assembly 10 is fitted with a water tank 1002, and the bottom of the indentation box 1001 is provided with a groove 1001a for storing the indentation wheel 1004. The inside of the indentation wheel 1004 is also inlaid with a sponge sleeve 1004c, and the bottom outlet of the water tank 1002 is connected to the groove 1001a where the indentation wheel 1004 is located. The lifting frame 802 is connected to the indentation box 1001 through a hydraulic rod 803.

[0039] Furthermore, a rotating rod 1003 is inserted in the groove 1001a, and an indentation wheel 1004 is sleeved on the rotating rod 1003. The interior of the indentation wheel 1004 is hollow, and a water outlet hole 1004 is also provided on the outer wall of the indentation wheel 1004. A cover plate 1004b is provided on one side of the outer wall of the indentation wheel 1004.

[0040] The operation process of this embodiment is as follows: When performing the creasing work, the hydraulic rod 803 extends to push the creasing box 1001 at its bottom to move down, thereby causing the creasing wheel 1004 to contact the outer wall of the carton. At the same time as the contact, the water in the water tank 1002 flows into the box groove 1001a through the water outlet on it. Then, because the outer wall of the creasing wheel 1004 has a water outlet hole 1004a, this part of the water flows into the sponge sleeve 1004c through the water outlet hole 1004a and is absorbed by it, thus wetting the entire creasing wheel 1004, and then wetting the carton at the contact position of the creasing wheel 1004.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A carton folding score marking device, comprising a machine table (1), a support column (2) is welded on the bottom side wall of the machine table (1); characterized in that: A drive roller (3) is embedded in the upper side wall of the machine base (1). A pressure roller (4) is embedded in the front and rear side walls of the machine base (1) above the drive roller (3). A drying assembly (5) is installed on the central axis of the machine base (1). An electric heating column (502) is embedded in the upper side wall of the crossbar (501) in the drying assembly (5). The shaft end of the crossbar (501) is connected to the pneumatic rod (504) through the connecting rod (503). A hanger (6) is mounted on the machine base (1). A sliding plate (8) is slidably connected to the hanger (6). A lifting frame (802) is sleeved on the sliding plate (8). A water storage tank (9) is snapped onto the upper side wall of the hoisting frame (802), and a hydraulic rod (803) is detachably fixed on the bottom side wall of the hoisting frame (802). The hoisting frame (802) is connected to the indentation box (1001) in the indentation assembly (10) through the hydraulic rod (803). A water storage tank (1002) is embedded in the upper side wall of the indentation box (1001), and an indentation wheel (1004) is also embedded in the bottom of the indentation box (1001). A water outlet hole (1004a) is opened on the outer wall of the indentation wheel (1004), and a sponge sleeve (1004c) is filled inside the indentation wheel (1004).

2. The cardboard box folding and creasing device according to claim 1, characterized in that, The pressure roller (4) and the drive roller (3) are located on the same vertical axis. The pressure roller (4) and the drive roller (3) are separated by a gap. A wheel axle is inserted at the center of the pressure roller (4). The wheel axle of the pressure roller (4) is rotatably connected to the side wall of the machine base (1).

3. The cardboard box folding and creasing device according to claim 1, characterized in that, The front and rear side walls of the hanger (6) are provided with sliding grooves (601). The hanger (6) is slidably connected to the slider (801) through the sliding grooves (601), and the slider (801) is welded to the two shaft ends of the slide plate (8).

4. The cardboard box folding and creasing device according to claim 1, characterized in that, The water storage tank (9) is equipped with a water supply pipe (901) and a water valve is installed on the water supply pipe (901). The water supply pipe (901) is connected to the water storage tank (1002) through the water valve. The bottom of the indentation box (1001) is provided with a box groove (1001a) and a rotating rod (1003) is inserted through the box groove (1001a).

5. A cardboard box folding and creasing device according to claim 1, characterized in that, The indentation box (1001) is rotatably connected to the indentation wheel (1004) via a rotating rod (1003). The indentation wheel (1004) has a hollow groove, and the sponge sleeve (1004c) is placed in the hollow groove inside the indentation wheel (1004).

6. The cardboard box folding and creasing device according to claim 1, characterized in that, The end of the empty groove of the indentation wheel (1004) is covered with a cover plate (1004b), and the empty groove inside the indentation wheel (1004) is connected to the tank groove (1001a) through a water outlet (1004a).