A tongue opening mechanism on a cartoning line

Abstract

A tongue-opening mechanism for a cartoning production line includes a guide plate, a tongue-pulling rod, a tongue-pulling shaft, and a tongue-pulling drive assembly. The tongue-pulling rod and guide plate are sequentially arranged beside the cartoning production line. The side tongue of the packaging box extends outside the workstation slot of the cartoning production line. The distance between the guide plate and the packaging box inlet is less than the height of the front and rear side tongues of the packaging box. The tongue-pulling shaft is vertically arranged, and the tongue-pulling rod is arranged perpendicularly on the tongue-pulling shaft. The tongue-pulling drive assembly is driven by the tongue-pulling shaft to drive the tongue-pulling shaft to rotate, causing the tongue-pulling rod to rotate and contact the inner surface of the front side tongue of the packaging box, causing the front side tongue to bend outward. Then, it abuts against the guide plate and maintains the outward bending state. The rear side tongue of the packaging box bends outward under the guidance of the guide plate. This utility model can realize the opening of the box body and use the conveying power of the cartoning conveyor line for driving. The overall structure is ingenious, simple and compact, and can be flexibly deployed on the carton conveying production line.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a tongue-opening mechanism on a cartoning production line. Background Technology

[0002] On a product packaging production line, the process typically involves picking up the box, opening it, pushing the material, folding the box, and sealing it. After opening, the side flaps of the box are horizontal to its sides, and the material is pushed directly into the box's interior space from the side flaps. However, for packaging materials like carton packs, multiple rows and layers of material are often pushed in at once, arranged quite tightly within the box. Instructions are also frequently included, resulting in a perfect fit between the material and the box walls. If the side flaps of the packaging box are not folded during packaging, the material will collide with the side flaps during pushing, making it difficult for the outermost carton packs to enter the box smoothly. To facilitate pushing, the side flaps of the box need to be bent outwards before pushing, opening the entrance to the packaging box and preventing interference between the material and the side flaps. The outward-tilted side flaps also guide the material as it enters the box. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a tongue-opening mechanism for a box-packing production line that can open the packaging box and has a simple and ingenious structure.

[0004] This utility model is achieved through the following technical solution:

[0005] A tongue-opening mechanism for a cartoning production line includes a guide plate, a tongue-pulling rod, a tongue-pulling shaft, and a tongue-pulling drive assembly. The tongue-pulling rod and the guide plate are sequentially arranged beside the cartoning production line, with the tongue-pulling rod located at the front end of the guide plate. The packaging box is placed in a workstation slot of the cartoning production line for conveying, and the side tongue of the packaging box extends out of the workstation slot. Along the running direction of the packaging box, the side tongue located at the front end is the front side tongue, and the side tongue located at the rear end is the rear side tongue. The distance between the guide plate and the packaging box inlet (i.e., the plane position of the packaging box crease, i.e., the relative plane of the packaging box after the tongue is folded) is less than the distance between the front side tongue and the packaging box inlet. The height of the rear tongue is determined by the vertical setting of the tongue-pulling shaft and the vertical setting of the tongue-pulling rod. The tongue-pulling drive assembly is connected to the tongue-pulling shaft to drive the shaft to rotate, thereby rotating the tongue-pulling rod horizontally. This causes the tongue-pulling rod to contact the inner surface of the front tongue of the packaging box along the direction of the box's movement, causing the front tongue to bend outward. The front tongue then rests against the guide plate to maintain its outward bending state. Simultaneously, as the packaging box moves, the rear tongue of the packaging box bends outward under the guidance of the guide plate, thus opening the box and facilitating the feeding of materials.

[0006] Furthermore, it also includes an upper guide tongue rod and a lower guide tongue rod, which are horizontally fixed above and below the tongue-pulling rod, respectively. The front end of the upper guide tongue rod is bent downward and the front end of the lower guide tongue rod is bent upward. The upper and lower guide tongue rods are used to guide the upper and lower tongues of the packaging box to bend outward, which can further open the opening of the packaging box.

[0007] Furthermore, the tongue-pulling drive assembly includes a power structure and a bevel gear assembly. The power structure includes a transmission main shaft, which is perpendicular to the running direction of the cartoning production line and is interlocked with the power components of the cartoning production line. The power components of the cartoning production line drive the transmission main shaft to rotate. The bevel gear assembly includes a driving bevel gear and a driven bevel gear that mesh with each other. The driven bevel gear is sleeved on the tongue-pulling shaft. The driving bevel gear is driven and connected to the transmission main shaft. The transmission main shaft drives the driving bevel gear to rotate, and the driving bevel gear drives the driven bevel gear and the tongue-pulling shaft connected to the driven bevel gear to rotate.

[0008] To facilitate spatial layout and power transmission, the toggle drive assembly further includes a timing belt assembly. The driving bevel gear is driven to the transmission main shaft via the timing belt assembly. The timing belt assembly includes a driving timing pulley, a driven timing pulley, and a timing belt. The driving timing pulley is mounted on the transmission main shaft, and the timing belt is sleeved on the driving timing pulley and the driven timing pulley. The driven timing pulley is connected to the shaft of the driving bevel gear.

[0009] Furthermore, the cartoning production line is a chain conveyor belt, whose power components include a conveyor chain driven by a servo motor and sprockets. The power structure also includes a transmission sprocket, which meshes with the conveyor chain and is simultaneously mounted on the transmission main shaft. The conveyor chain drives the transmission sprocket and the transmission main shaft to rotate. The rotational speed of the tongue-turning shaft is adjusted by regulating the transmission ratio between the transmission sprocket and the bevel gear assembly to match the conveying speed of the conveyor chain. This ensures that the front tongue of the package delivered to the tongue-turning rod just contacts the rotating tongue-turning rod, thus bending the front tongue.

[0010] Furthermore, the transmission ratio between the drive sprocket and the driven bevel gear is 1:2.

[0011] Furthermore, the tongue-operated shaft is vertically mounted on a bearing seat via a bearing, and the bearing seat is fixed on the frame of the carton production line.

[0012] Furthermore, the tongue lever includes two levers, which are mounted on the tongue lever shaft and perpendicular to it. The two levers are symmetrical about the central axis of the tongue lever shaft, and each lever is asymmetrically arranged about the tongue lever shaft, so that every time the tongue lever rotates 180 degrees, one end will always extend out and contact the front tongue of the packaging box to bend the front tongue.

[0013] Furthermore, the guide plate has an arc-shaped guide edge at one end near the tongue lever, which is used to guide the bent front tongue to abut against the guide plate after the front tongue of the packaging box is bent outward by the tongue lever, so as to maintain the bent state of the front tongue, and to guide the rear tongue to contact the guide plate to bend the rear tongue.

[0014] This invention utilizes a guide plate, a tongue-pulling rod, an upper guide tongue rod, and a lower guide tongue rod on a cartoning conveyor line. The tongue-pulling rod rotates under a drive mechanism to pull the front tongue of the carton outward, bending it before locking it onto the guide plate to maintain the bent state. The rear tongue also bends outward under the action of the guide plate. The upper and lower tongues fold outward under the guidance of the upper and lower guide tongue rods, fully opening the carton and facilitating the insertion of subsequent materials. This is particularly suitable for packaging multi-layered and tightly packed materials such as carton packs. By using the conveying power of the cartoning conveyor line to drive the tongue-pulling rod, the power components are saved. Furthermore, the transmission ratio design of the transmission components allows for easy synchronization between the tongue-pulling action of the tongue-pulling rod and the conveying rhythm of the packaging box, improving the opening efficiency. The overall structure is ingenious, simple, and compact, allowing for flexible deployment on the cartoning production line. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of this utility model without the upper guide tongue rod and the lower guide tongue rod.

[0017] Figure 3 This is an enlarged schematic diagram of part of the structure of this utility model.

[0018] Figure 4 This is an enlarged schematic diagram of a portion of the structure from another perspective of this utility model.

[0019] Reference numerals: 1-Cartoning production line; 2-Packaging box; 3-Guide tongue plate; 4-Tongue lever; 5-Tongue lever shaft; 6-Tongue lever drive assembly; 7-Bearing seat; 8-Upper guide tongue lever; 9-Lower guide tongue lever; 11-Working station slot; 12-Conveyor chain; 21-Front side tongue; 22-Rear side tongue; 23-Upper side tongue; 24-Lower side tongue; 31-Guide edge; 41-Tongue lever; 61-Drive spindle; 62-Drive sprocket; 63-Driving synchronous pulley; 64-Driven synchronous pulley; 65-Synchronous belt; 66-Driving bevel gear; 67-Driven bevel gear. Detailed Implementation

[0020] A flap-opening mechanism for a cartoning production line is installed on cartoning production line 1, such as... Figures 1 to 4 It includes a guide tongue plate 3, a tongue-pulling rod 4, a tongue-pulling shaft 5, a tongue-pulling drive assembly 6, an upper guide tongue rod 8, and a lower guide tongue rod 9. The tongue-pulling rod 4 and the guide tongue plate 3 are arranged sequentially on the side of the cartoning production line 1, and the tongue-pulling rod 4 is located at the front end of the guide tongue plate 3 (along the running direction of the packaging box 2). The packaging box 2 is placed in the station slot 11 of the cartoning production line 1 for conveying. Generally, the two sides of the packaging box 2 are clamped by the two sides of the station slot 11. The side tongues of the packaging box 2 extend out of the station slot 11 for folding and sealing operations. Along the running direction of the packaging box 2, the one located at the front end is the front side tongue 21, the one located at the rear end is the rear side tongue 22, and the ones located above and below are the upper side tongue 23 and the lower side tongue 24, respectively. The distance between the guide tongue plate 3 and the entrance of the packaging box 2 (i.e., the plane position at the crease of the packaging box 2, that is, the relative plane of the packaging box 2 after the tongue is folded) is less than the height of the front tongue 21 and the rear tongue 22 of the packaging box 2. In this way, the side tongue can rest against the guide tongue plate 3 after it is bent, and will not fold back. The tongue-pulling shaft 5 is vertically arranged, and the tongue-pulling rod 4 is arranged perpendicularly to the tongue-pulling shaft 5. The tongue-pulling drive assembly 6 is driven to the tongue-pulling shaft 5 to drive the tongue-pulling shaft 5 to rotate, thereby causing the tongue-pulling rod 4 to rotate in the horizontal direction and contact the inner surface of the front tongue 21 of the packaging box 2 along the running direction of the packaging box 2. That is, the rotation direction of the tongue-pulling rod 4 is consistent with the running direction of the packaging production line. This can drive the front tongue 21 to bend outward, and then abut against the guide tongue plate 3 to maintain the outward bending state. At the same time, as the packaging box 2 moves, the rear tongue 22 of the packaging box 2 bends outward under the guidance of the guide tongue plate 3, realizing the opening of the packaging box 2 and facilitating the feeding of materials into the box.

[0021] like Figure 1 The upper guide tongue rod 8 and the lower guide tongue rod 9 are respectively fixed horizontally above and below the tongue-pulling rod 4, with the front end of the upper guide tongue rod 8 bent downward and the front end of the lower guide tongue rod 9 bent upward. The upper guide tongue rod 8 and the lower guide tongue rod 9 are respectively used to guide the upper tongue 23 and the lower tongue 24 of the packaging box 2 to bend outward, so as to further open the opening of the packaging box 2.

[0022] The main function of the tongue-driven assembly 6 is to drive the tongue-rotating shaft 5 to rotate. It can be an existing structure or method, such as a servo motor driven structure. In this embodiment, for example... Figure 3 The tongue-pulling drive assembly 6 includes a power structure, a synchronous belt assembly, and a bevel gear assembly. The power structure includes a transmission main shaft 61, which is perpendicular to the running direction of the cartoning production line 1 and is interlocked with the power components of the cartoning production line 1. The transmission main shaft 61 is driven by the power components of the cartoning production line 1, thus saving power by utilizing the power of the cartoning production line 1. The synchronous belt assembly includes a driving synchronous pulley 63, a driven synchronous pulley 64, and a synchronous belt 65. The bevel gear assembly includes a meshing driving bevel gear 66 and a driven bevel gear 67. The driving synchronous pulley 63 is mounted on the transmission main shaft 61, and the synchronous belt 65 is sleeved on the driving synchronous pulley 63 and the driven synchronous pulley 64. The driven synchronous pulley 64 is connected to the shaft of the driving bevel gear 66. The driven bevel gear 67 is sleeved on the lever shaft 5. The transmission main shaft 61 drives the driving bevel gear 66 to rotate via a synchronous belt assembly. The driving bevel gear 66 drives the driven bevel gear 67 and the lever shaft 5 connected to the driven bevel gear 67 to rotate. The boxing production line 1 provides rotational power in the vertical direction. The bevel gear assembly can convert the vertical power into rotational power in the horizontal direction.

[0023] As one implementation method, such as Figure 2 As shown in Figure 3, the cartoning production line 1 is a chain conveyor belt. Its power components include a conveyor chain 12, which is driven by a servo motor and sprockets. The power structure also includes a transmission sprocket 62, which meshes with the conveyor chain 12. The transmission sprocket 62 is also mounted on the transmission main shaft 61. The conveyor chain 12 drives the transmission sprocket 62 and the transmission main shaft 61 to rotate, and then drives the bevel gear assembly through the synchronous belt assembly to realize the transmission and direction conversion of power, so that the rotation direction of the lever 4 meets the bending requirement of the front tongue 21. The transmission ratio between the transmission sprocket 62 and the driven bevel gear 67 can be set to 1:2, that is, the driven bevel gear 67 rotates twice for every one revolution of the transmission sprocket 62. The rotational speed of the tongue shaft 5 can be adjusted by adjusting the transmission ratio between the transmission sprocket 62 and the bevel gear assembly to match the conveying speed of the conveying chain 12, so that the front tongue 21 of the packaging box 2 conveyed to the tongue rod 4 can just contact the rotating tongue rod 4 to bend the front tongue 21.

[0024] The boxing production line 1 can also be a synchronous belt conveyor. For synchronous belt conveyors, the drive shaft 61 can be connected to the drive synchronous pulley or other synchronous pulleys of the synchronous belt conveyor. For example, the drive shaft 61 can be driven to rotate by the synchronous pulley that is coaxial with the drive synchronous pulley, and then the power can be transmitted to the bevel gear assembly through the drive shaft 61.

[0025] In this embodiment, the tongue-operated shaft 5 is vertically mounted on the bearing seat 7 via a bearing, and the bearing seat 7 is fixed on the frame of the carton production line 1.

[0026] To improve tongue-opening efficiency, in this embodiment, as follows: Figure 4 The tongue lever 4 includes two levers 41, which are mounted on the tongue pivot 5 and perpendicular to it. The two levers 41 are symmetrical about the central axis of the tongue pivot 5, and each lever 41 is asymmetrically arranged about the tongue pivot 5, so that every time the tongue lever 4 rotates 180 degrees, one end will always extend out and contact the front tongue 21 of the packaging box 2 to bend the side tongue.

[0027] To improve the tongue-opening effect, in this embodiment, as follows: Figure 4 The guide plate 3 is provided with an arc-shaped guide edge 31 at one end near the tongue lever 4. This guide edge 31 is used to guide the bent front tongue 21 of the packaging box 2 to abut against the guide plate 3 after the tongue lever 4 bends it outward, so as to maintain the bent state of the front tongue 21, and to guide the rear tongue 22 to contact the guide plate 3 so as to bend the rear tongue 22.

[0028] The above detailed description is a specific description of a feasible embodiment of the present utility model. This embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the present utility model should be included in the patent scope of this case.

Claims

1. A tongue opening mechanism on a cartoning line, characterized in that The device includes a guide plate, a tongue-pulling rod, a tongue-pulling shaft, and a tongue-pulling drive assembly. The tongue-pulling rod and the guide plate are sequentially arranged beside the cartoning production line, with the tongue-pulling rod located at the front end of the guide plate. The packaging box is placed in the work station slot of the cartoning production line for conveying, and the side tongue of the packaging box extends out of the work station slot. Along the running direction of the packaging box, the side tongue located at the front end is the front side tongue, and the side tongue located at the rear end is the rear side tongue. The distance between the guide plate and the packaging box inlet is less than the height of the front and rear side tongues of the packaging box. The tongue-pulling shaft is vertically arranged, and the tongue-pulling rod is arranged perpendicularly on the tongue-pulling shaft. The tongue-pulling drive assembly is driven by the tongue-pulling shaft to drive the tongue-pulling shaft to rotate, causing the tongue-pulling rod to rotate horizontally so that it contacts the inner surface of the front side tongue of the packaging box along the running direction of the packaging box, causing the front side tongue to bend outward. Then, it abuts against the guide plate and maintains the outward bending state. The rear side tongue of the packaging box bends outward under the guidance of the guide plate, realizing the opening of the packaging box.

2. A tongue opening mechanism on a cartoning line according to claim 1, characterized in that It also includes an upper guide tongue rod and a lower guide tongue rod, which are horizontally fixed above and below the tongue-pulling rod, respectively. The front end of the upper guide tongue rod is bent downward and the front end of the lower guide tongue rod is bent upward. The upper guide tongue rod and the lower guide tongue rod are used to guide the upper and lower tongues of the packaging box to bend outward.

3. A tongue opening mechanism on a cartoning line according to claim 1, characterized in that The tongue-pulling drive assembly includes a power structure and a bevel gear assembly. The power structure includes a transmission main shaft, which is perpendicular to the running direction of the cartoning production line and is interlocked with the power components of the cartoning production line. The power components of the cartoning production line drive the transmission main shaft to rotate. The bevel gear assembly includes a driving bevel gear and a driven bevel gear that mesh with each other. The driven bevel gear is sleeved on the tongue-pulling shaft. The driving bevel gear is driven and connected to the transmission main shaft. The transmission main shaft drives the driving bevel gear to rotate, and the driving bevel gear drives the driven bevel gear and the tongue-pulling shaft connected to the driven bevel gear to rotate.

4. A tongue opening mechanism on a cartoning line according to claim 3, characterized in that The toggle drive assembly also includes a timing belt assembly. The driving bevel gear is driven to the transmission main shaft through the timing belt assembly. The timing belt assembly includes a driving timing pulley, a driven timing pulley, and a timing belt. The driving timing pulley is mounted on the transmission main shaft. The timing belt is sleeved on the driving timing pulley and the driven timing pulley. The driven timing pulley is connected to the shaft of the driving bevel gear.

5. The tongue-opening mechanism on a cartoning production line according to claim 3, characterized in that, The boxing production line is a chain conveyor belt, and its power components include a conveyor chain. The power structure also includes a transmission sprocket, which meshes with the conveyor chain. The transmission sprocket is also mounted on the transmission main shaft, and the conveyor chain drives the transmission sprocket and the transmission main shaft to rotate.

6. A tongue opening mechanism on a cartoning line according to claim 5, wherein, The transmission ratio between the drive sprocket and the driven bevel gear is 1:

2.

7. A tongue opening mechanism for a cartoning line according to claim 1, wherein The tongue-operated shaft is vertically mounted on a bearing seat via a bearing, and the bearing seat is fixed on the frame of the carton production line.

8. A tongue opening mechanism for a cartoning line according to claim 1, wherein The tongue lever includes two levers, which are mounted on the tongue lever shaft and perpendicular to it. The two levers are symmetrical about the central axis of the tongue lever shaft, while each lever is asymmetrically arranged about the tongue lever shaft. This ensures that every time the tongue lever rotates 180 degrees, one end extends out and contacts the front tongue of the packaging box to bend the front tongue.

9. A tongue opening mechanism for a cartoning line according to claim 1, wherein The guide plate has an arc-shaped guide edge at one end near the tongue lever. This guide edge is used to guide the bent front tongue to abut against the guide plate after the front tongue of the packaging box is bent outward by the tongue lever, so as to maintain the bent state of the front tongue, and to guide the rear tongue to contact the guide plate to bend the rear tongue.

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