A fully automatic cartoning machine

Abstract

This invention relates to the field of cartoning technology, and more particularly to a fully automatic cartoning machine, comprising a side-page folding assembly, a tongue-and-leaf folding assembly, and a drive assembly. The side-page folding assembly includes a side push plate and a side push rod; the tongue-and-leaf folding assembly includes a lifting and pressing rod with a lifting mechanism and a pressing plate that presses the raised tongue into the carton body; the drive assembly includes a rotary power source, a first cam mechanism, a second cam mechanism, and a third cam mechanism. This invention utilizes the same rotary drive source to drive different cam mechanisms, thereby sequentially completing the two processes of side-page folding and tongue-and-leaf folding without the need for separate drive sources. This reduces the number of motors and their associated controllers, cables, and other components, significantly lowering manufacturing costs and subsequent maintenance expenses. Furthermore, the compact cam mechanism for motion distribution makes the overall machine structure more streamlined and compact, significantly reducing the machine's footprint on the production line and meeting the requirements of modern packaging workshops for equipment miniaturization and integration.

Description

Technical Field

[0001] This invention relates to the field of cartoning technology, and more particularly to a fully automatic cartoning machine. Background Technology

[0002] Cartoning machines are generally used to pack products into packaging boxes and close them. The box structure is shown in the figure. During the cartoning process, two side panels are typically folded towards each other, and then a flap is placed over the outside of the side panels and inserted into the box body to achieve reliable closure. In existing cartoning machines, the side panel folding and flap folding actions are often controlled by independent drive motors, meaning each folding station has a dedicated power source. However, the use of multiple motors significantly increases the manufacturing and maintenance costs of the equipment; at the same time, the arrangement of multiple drive mechanisms and their transmission components occupies a large amount of equipment space, resulting in a bulky machine that is not conducive to compact layout in limited production spaces; furthermore, the dispersed power sources increase the complexity of the control system, making it difficult to meet the demands of modern packaging production lines for equipment integration and miniaturization. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problem that each process of the existing cartoning machine is often controlled by an independent drive motor, which leads to increased cost and large overall size, a fully automatic cartoning machine is provided.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a fully automatic cartoning machine for closing packaging boxes on a conveyor line extending along the X-axis direction, wherein the packaging box includes a box body, side panels and a flap located at the end of the box body, and the cartoning machine includes: The side folding assembly includes a side push plate that reciprocates along the X-axis to push the front ear of the front end of the packaging box backward along its conveying direction, and a side push rod that is oscillating to push the rear ear of the rear end of the packaging box forward along its conveying direction. The tongue folding assembly is located at the front end of the side page folding assembly and includes a lifting rod that is raised to make the tongue tilt up and a pressure plate that reciprocates along the Y-axis to press the tilted tongue into the box body. The drive components include a rotary power source, a first cam mechanism connected to the rotary power source to drive the side push rod to swing and the lifting rod to rise and fall, a second cam mechanism for driving the pressure plate to reciprocate, and a third cam mechanism for driving the side push plate to reciprocate.

[0005] Furthermore, the tongue folding assembly also includes a guide block that reciprocates along the Y-axis to cooperate with the side push plate to guide the pressing path of the tongue.

[0006] Furthermore, the first cam mechanism includes a first cam body, a first roller that engages with a first cam groove on the first cam body, a first rocker arm connected to the first roller, a swing linkage unit connected between the first rocker arm and the side push rod, and a lifting linkage unit connected between the first rocker arm and the lifting rod.

[0007] Furthermore, the swing linkage unit includes a swing seat for mounting the side push rod, a swing shaft inserted longitudinally within the swing seat, a transition shaft connecting the swing shaft and the first swing arm, and a first pull rod.

[0008] Furthermore, the lifting linkage unit includes a swing block, an intermediate shaft hinged between the output end of the swing block and the lifting rod and extending longitudinally, a connecting shaft and a transmission shaft connecting the input end of the swing block and the first swing arm.

[0009] Furthermore, the second cam mechanism includes a second cam body, a second roller that engages with a second cam groove on the second cam body, a second pull rod that is rotatably connected to the second roller, a second swing arm connected between the second pull rod and the pressure plate, and a pressure plate guide structure for guiding the movement of the pressure plate.

[0010] Furthermore, the third cam mechanism includes a third cam body, a third roller that engages with a third cam groove on the third cam body, a third pull rod that is rotatably connected to the third roller, a third swing arm connected between the third pull rod and the side push plate, and a side push plate guide structure for guiding the movement of the side push plate.

[0011] Furthermore, the third cam mechanism also includes a guide roller that mates with a third cam groove on the third cam body, a rotating shaft rotatably connected to the guide roller, a connecting rod connecting the rotating shaft and the guide block, and a guide block guide structure for guiding the movement of the guide block.

[0012] Furthermore, the guide block is fixed with a repressing finger for repressing the tongue that is pressed into the box body.

[0013] Furthermore, the side push rod and the side push plate are offset in the height direction.

[0014] The beneficial effects of this invention are as follows: This invention utilizes the same rotary drive source to drive different cam mechanisms, thus sequentially completing the two processes of side page folding and tongue page folding without the need for separate drive sources. This reduces the number of motors and their associated controllers, cables, and other components, significantly lowering manufacturing costs and subsequent maintenance expenses. Furthermore, the compact cam mechanism for motion distribution makes the overall structure more streamlined and compact, significantly reducing the equipment's footprint on the production line and meeting the requirements of modern packaging workshops for equipment miniaturization and integration. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a three-dimensional schematic diagram from a first perspective of the present invention; Figure 2 This is a three-dimensional schematic diagram from a second perspective of the present invention; Figure 3 This is the front view of the present invention; Figure 4 This is a three-dimensional schematic diagram from the first perspective after removing part of the base according to the present invention; Figure 5 This is a three-dimensional schematic diagram from a second perspective after removing part of the base according to the present invention; Figure 6 This is a three-dimensional schematic diagram of the side page folding component of the present invention from a first perspective; Figure 7 This is a three-dimensional schematic diagram of the side page folding component of the present invention from a second perspective; Figure 8 This is a three-dimensional schematic diagram of the tongue folding component of the present invention from a first perspective; Figure 9 This is a three-dimensional schematic diagram of the tongue folding component of the present invention from a second perspective; Figure 10 This is a three-dimensional schematic diagram of the first cam mechanism in this invention from a first perspective; Figure 11 This is a three-dimensional schematic diagram of the first cam mechanism in this invention from a second perspective; Figure 12 This is a three-dimensional schematic diagram of the third cam mechanism in this invention from a first-view perspective; Figure 13 This is a front view of the third cam mechanism in this invention; Figure 14 This is a three-dimensional schematic diagram from a first perspective of the cooperation between the third cam mechanism and the side push plate in this invention; Figure 15 This is a three-dimensional schematic diagram from a second perspective of the cooperation between the third cam mechanism and the side push plate in this invention; Figure 16 This is a three-dimensional schematic diagram from a first perspective of the cooperation between the third cam mechanism and the guide block in this invention; Figure 17 This is a three-dimensional schematic diagram from a second perspective of the cooperation between the third cam mechanism and the guide block in this invention; Figure 18 This is a three-dimensional schematic diagram from a first perspective of the cooperation between the second cam mechanism and the pressure block in this invention; Figure 19 This is a three-dimensional schematic diagram from a second perspective of the cooperation between the second cam mechanism and the pressure block in this invention; Figure 20 This is a schematic diagram of the structure of the first cam body and the third cam body in this invention; Figure 21 This is a schematic diagram of the structure of the second cam body in this invention; Figure 22 This is a schematic diagram of the packaging box structure in this invention.

[0017] In the picture: 1. Side push plate; 2. Side push rod; 3. Raise the pressure bar; 4. Pressure plate; 5. Guide block; 6. Rotary power source; 7. First cam mechanism; 701. First cam body; 702. First roller; 703. First rocker arm; 704. Rocker seat; 705. Rocker shaft; 706. Transition shaft; 707. First tie rod; 708. Rocker block; 709. Intermediate shaft; 710. Connecting shaft; 711. Transmission shaft; 8. Second cam mechanism; 801. Second cam body; 802. Second roller; 803. Second tie rod; 804. Second swing arm; 805. Pressure plate guide structure; 9. Third cam mechanism; 901. Third cam body; 902. Third roller; 903. Third tie rod; 904. Third swing arm; 905. Side push plate guide structure; 906. Guide roller; 907. Rotary shaft; 908. Connecting rod; 909. Guide block guide structure; 10. Repeated pressure finger; 11. Base; 12. Packaging box; 1201. Box body; 1202. Side page; 1203. Tongue; 1203a. Covering section; 1203b. Insertion section. Detailed Implementation

[0018] The invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention in a schematic manner. Therefore, they only show the components relevant to the invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0019] like Figures 1-22As shown, a fully automatic cartoning machine is used to close packaging boxes 12 on a conveyor line extending along the X-axis. The packaging box 12 includes an open box body 1201 and box tongues located at both ends of the box body 1201. Each set of box tongues includes a tongue flap 1203 and two side flaps 1202 distributed on both sides of the tongue flap 1203. The cartoning machine has two sets of side flaps 1202, which are respectively arranged at both ends of the box body 1201 to fold the box tongues at both ends. The folding directions of the two side flaps 1202 located at the same end are opposite. The tongue flap 1203 includes a cover for closing the opening of the box body 1201. The box-making machine includes a covering section 1203a and an insertion section 1203b for inserting into the box body 1201. Creases are provided between the box body 1201, the covering section 1203a, and the insertion section 1203b. The tongue 1203 has two different positions: when the covering section 1203a is connected to the upper end of the box body 1201, it bends downwards during operation while the insertion section 1203b enters the box body 1201; when the covering section 1203a is connected to the lower end of the box body 1201, it bends upwards during operation while the insertion section 1203b enters the box body 1201. Base 11; The side folding assembly includes a side push plate 1 that reciprocates along the X-axis to push the front ear of the packaging box 12 backward along its conveying direction, and a side push rod 2 that is oscillating to push the rear ear of the packaging box 12 forward along its conveying direction. The tongue folding assembly is disposed at the front end of the side folding assembly, including a lifting rod 3 that is raised and lowered to make the tongue 1203 tilt up, and a pressure plate 4 that reciprocates along the Y-axis to press the tilted tongue 1203 into the box body 1201. The drive components include a rotary power source 6, a first cam mechanism 7 connected to the rotary power source 6 to drive the side push rod 2 to swing and the lifting rod 3 to rise and fall, a second cam mechanism 8 for driving the pressure plate 4 to reciprocate, and a third cam mechanism 9 for driving the side push plate 1 to reciprocate. The rotary power source 6 may be a motor. During operation, the conveyor line transports the packaging box 12 forward. During the transport process, the side push rod 2 first swings in the direction of the conveyor line to push the rear side ear forward. Then, the side push plate 1 pushes the front side ear backward. At this time, both side ears have been folded, and the tongue 1203 is roughly horizontal during this process. Then, the lifting rod 3 raises or lowers the tongue 1203 to make the tongue 1203 curl up. The pressing plate 4 presses the curled tongue 1203 into the box body 1201.

[0020] This embodiment utilizes the same rotary drive source to drive different cam mechanisms, thus sequentially completing the two processes of side page 1202 folding and tongue page 1203 folding without the need for separate drive sources. This reduces the number of motors and their associated controllers, cables, and other components, significantly lowering manufacturing costs and subsequent maintenance expenses. Furthermore, the compact cam mechanism for motion distribution makes the overall structure more streamlined and compact, significantly reducing the equipment's footprint on the production line and meeting the requirements of modern packaging workshops for equipment miniaturization and integration.

[0021] In some examples, the tongue folding assembly further includes a guide block 5 that reciprocates along the Y-axis to cooperate with the side push plate 1 to guide the pressing path of the tongue 1203. A guide channel is formed between the side push plate 1 and the guide block 5 for the insertion segment 1203b to be inserted, so that the insertion segment 1203b can enter the housing 1201 through the guide channel during the action of the pressure plate 4, so as to ensure that the covering segment 1203a covers the side page 1202 while the insertion segment 1203b also enters the housing 1201.

[0022] In some examples, the first cam mechanism 7 includes a first cam body 701, a first roller 702 that engages with a first cam groove on the first cam body 701, a first swing arm 703 connected to the first roller 702, a swing linkage unit connected between the first swing arm 703 and the side push rod 2, and a lifting linkage unit connected between the first swing arm 703 and the lifting rod 3. The first cam body 701 is fixedly sleeved on the output shaft of the rotary power source 6 and rotates synchronously with it. The first cam mechanism 7 can realize the lateral swing of the side push rod 2 and the longitudinal lifting of the lifting rod 3 through the swing linkage unit and the lifting linkage unit, respectively.

[0023] In some examples, the swing linkage unit includes a swing base 704 for mounting the side push rod 2, a swing shaft 705 inserted longitudinally in the swing base 704, a transition shaft 706 connecting the swing shaft 705 and the first swing arm 703, and a first pull rod 707. The swing shaft 705 is rotatably mounted on the base 11 along the Z-axis, the first swing arm 703 is bent, and rod end joint bearings are installed at both ends of the first pull rod 707. When the rotary power source 6 is started, the first cam body 701 rotates, which drives the first roller 702 inside it to move, and in turn drives the first rocker arm 703, the first pull rod 707, the transition shaft 706 and the rocker shaft 705 to rotate. The rocker shaft 705 drives the rocker seat 704 and the side push rod 2 on it to rotate synchronously to move closer to or away from the side page 1202.

[0024] In some examples, the lifting linkage unit includes a swing block 708, an intermediate shaft 709 that is hinged between the output end of the swing block 708 and the lifting rod 3 and extends longitudinally, a connecting shaft 710 and a transmission shaft 711 that connect the input end of the swing block 708 and the first swing arm 703. The swing block 708 is rotatably mounted on the base 11 along the X-axis and has an angular or T-shaped structure to convert the horizontal movement of the first swing arm 703 into the vertical movement of the intermediate shaft 709. The two ends of the transmission shaft 711 and the intermediate shaft 709 are equipped with rod end joint bearings. The base 11 has a guide hole for the intermediate shaft 709 to pass through, and a linear bearing is installed between the lifting rod 3 and the base 11. When the rotary power source 6 is started, the first cam body 701 rotates, which drives the first roller 702 inside it to move, and in turn drives the first swing arm 703, the connecting shaft 710, the transmission shaft 711 and the swing block 708 to rotate. The swing block 708 drives the lifting rod 3 to rise or fall through the intermediate shaft 709 to lift or press the tongue 1203.

[0025] In some examples, the second cam mechanism 8 includes a second cam body 801, a second roller 802 that engages with a second cam groove on the second cam body 801, a second pull rod 803 that is rotatably connected to the second roller 802, a second swing arm 804 connected between the second pull rod 803 and the pressure plate 4, and a pressure plate guide structure 805 for guiding the movement of the pressure plate 4. The second cam body 801 is fixedly sleeved on the output shaft of the rotary power source 6 and rotates synchronously with it. The pressure plate guide structure 805 is a slide rail slider combination, and the slide rail is mounted on the base 11 and extends along the Y-axis direction. The second swing arm 804 is connected to the pressure plate 4 through the slider. When the rotary power source 6 is started, the second cam body 801 rotates, which drives the second roller 802 inside it to move, and in turn drives the second pull rod 803 and the second swing arm 804 to rotate. Under the guidance of the slide rail slider, the second swing arm 804 drives the pressure plate 4 to move back and forth along the Y axis.

[0026] In some examples, the third cam mechanism 9 includes a third cam body 901, a third roller 902 that engages with a third cam groove on the third cam body 901, a third pull rod 903 that is rotatably connected to the third roller 902, a third swing arm 904 connected between the third pull rod 903 and the side push plate 1, and a side push plate guide structure 905 for guiding the movement of the side push plate 1. The third cam body 901 is fixedly sleeved on the output shaft of the rotary power source 6 and rotates synchronously with it. The side push plate guide structure 905 is a slide rail slider combination, and the slide rail is installed on the base 11 and extends along the X-axis direction. The side push plate 1 is connected to both the slider and the third swing arm 904. The third pull rod 903 is divided into a third upper pull rod and a third lower pull rod, both of which are installed on the connecting seat and are used for pressing the tongue 1203 up or down respectively. The third swing arm 904 is equipped with rod end joint bearings at both ends. When the rotary power source 6 is started, the third cam body 901 rotates, which drives the third roller 902 inside it to move, and in turn drives the third pull rod 903 and the third swing arm 904 to rotate. Under the guidance of the slide rail slider, the third swing arm 904 drives the side push plate 1 to move back and forth along the X-axis.

[0027] In some examples, the third cam mechanism 9 further includes a guide roller 906 that cooperates with the third cam shaft on the third cam body 901, a rotating shaft 907 that is rotatably connected to the guide roller 906, a connecting rod 908 that connects the rotating shaft 907 and the guide block 5, and a guide block guide structure 909 for guiding the movement of the guide block 5. The guide block guide structure 909 is a slide rail slider combination, and the slide rail is mounted on the base 11 and extends along the Y-axis direction. The guide block 5 is connected to both the slider and the connecting rod 908. Rod end joint bearings are installed at both ends of the connecting rod 908. When the rotary power source 6 is started, the third cam body 901 rotates, which drives the guide roller 906 inside it to move, and in turn drives the rotating shaft 907 and the connecting rod 908 to rotate. Under the guidance of the slide rail slider, the connecting rod 908 drives the guide block 5 to move back and forth along the Y axis.

[0028] In some examples, the guide block 5 is fixed with a repressing finger 10 for repressing the tongue 1203 pressed into the box body 1201. The repressing finger 10 is located at the front end of the guide block 5, and there are several of them. The several repressing fingers 10 are spaced apart along the X-axis.

[0029] In some examples, the side push rod 2 and the side push plate 1 are offset in the height direction. After the side push rod 2 pushes the rear side ear forward and folds it, the side push plate 1 pushes the front side ear backward and folds it. During the folding of the front side ear, the side push rod 2 is always pressed on the rear side ear so that the side push plate 1 can press the rear side ear again during the folding of the front side ear.

[0030] Working principle: During operation, the conveyor line transports the packaging box 12 forward. First, the first cam body 701 sequentially drives the first swing arm 703, the first pull rod 707, the transition shaft 706, and the swing shaft 705 to rotate. The swing shaft 705 drives the swing seat 704 and its side push rod 2 to swing towards the conveyor line to push the rear side ear forward. Then, the third cam body 901 sequentially drives the third pull rod 903 and the third swing arm 904 to rotate. The third swing arm 904 drives the side push plate 1 to push the front side ear backward. During the folding of the front side ear, the side push rod 2 is always pressed on the rear side ear so that the side push plate 1 can re-press the rear side ear during the folding of the front side ear. At this time, both side ears have been folded. Then, the first cam body 701 sequentially drives the first swing arm 703, the connecting shaft 710, the transmission shaft 711 and the swing block 708 to rotate. The swing block 708 drives the lifting rod 3 to lift or press the tongue 1203 up or down through the intermediate shaft 709 so that the tongue 1203 is raised. Under the driving action of the third cam body 901, the guide block 5 moves past the tongue 1203 and toward the box 1201, and forms a guide channel between the two with the side push plate 1 for the insertion section 1203b to be inserted. Then, the second cam body 801 sequentially drives the second pull rod 803 and the second swing arm 804 to rotate. The second swing arm 804 drives the pressure plate 4 to move back and forth along the Y axis. The pressure plate 4 applies pressure to the tongue 1203 so that the insertion section 1203b can enter the box 1201 from the guide channel. In the process of the guide block 5 providing guidance, the repressing finger 10 connected to it represses the tongue 1203 that has been pressed into the box 1201.

[0031] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fully automatic cartoning machine for closing a packaging box (12) on a conveyor line extending along the X-axis, the packaging box (12) comprising a box body (1201), a side panel (1202) located at the end of the box body (1201), and a flap (1203), characterized in that: The cartoning machine includes: The side folding assembly includes a side push plate (1) that reciprocates along the X-axis to push the front ear of the front end of the packaging box (12) backward along its conveying direction, and a side push rod (2) that is oscillating to push the rear ear of the rear end of the packaging box (12) forward along its conveying direction. The tongue folding assembly is located at the front end of the side folding assembly and includes a lifting rod (3) that is raised and lowered to make the tongue (1203) tilt up and a pressure plate (4) that reciprocates along the Y-axis to press the tilted tongue (1203) into the box body (1201). The drive components include a rotary power source (6), a first cam mechanism (7) connected to the rotary power source (6) to drive the side push rod (2) to swing and the lifting rod (3) to rise and fall, a second cam mechanism (8) for driving the pressure plate (4) to reciprocate, and a third cam mechanism (9) for driving the side push plate (1) to reciprocate.

2. The fully automatic cartoning machine according to claim 1, characterized in that: The tongue folding assembly also includes a guide block (5) that reciprocates along the Y-axis to cooperate with the side push plate (1) to guide the pressing path of the tongue (1203).

3. The fully automatic cartoning machine according to claim 1, characterized in that: The first cam mechanism (7) includes a first cam body (701), a first roller (702) that cooperates with a first cam groove on the first cam body (701), a first swing arm (703) connected to the first roller (702), a swing linkage unit connected between the first swing arm (703) and the side push rod (2), and a lifting linkage unit connected between the first swing arm (703) and the lifting rod (3).

4. The fully automatic cartoning machine according to claim 3, characterized in that: The swing linkage unit includes a swing seat (704) for mounting the side push rod (2), a swing shaft (705) inserted longitudinally in the swing seat (704), a transition shaft (706) connecting the swing shaft (705) and the first swing arm (703), and a first pull rod (707).

5. The fully automatic cartoning machine according to claim 3, characterized in that: The lifting linkage unit includes a swing block (708), an intermediate shaft (709) hinged between the output end of the swing block (708) and the lifting rod (3) and extending longitudinally, a connecting shaft (710) connecting the input end of the swing block (708) and the first swing arm (703) and a transmission shaft (711).

6. The fully automatic cartoning machine according to claim 1, characterized in that: The second cam mechanism (8) includes a second cam body (801), a second roller (802) that engages with a second cam groove on the second cam body (801), a second pull rod (803) that is rotatably connected to the second roller (802), a second swing arm (804) that is connected between the second pull rod (803) and the pressure plate (4), and a pressure plate guide structure (805) for guiding the movement of the pressure plate (4).

7. The fully automatic cartoning machine according to claim 2, characterized in that: The third cam mechanism (9) includes a third cam body (901), a third roller (902) that engages with a third cam groove on the third cam body (901), a third pull rod (903) that is rotatably connected to the third roller (902), a third swing arm (904) that connects the third pull rod (903) and the side push plate (1), and a side push plate guide structure (905) for guiding the movement of the side push plate (1).

8. The fully automatic cartoning machine according to claim 7, characterized in that: The third cam mechanism (9) further includes a guide roller (906) that cooperates with the third cam groove on the third cam body (901), a rotating shaft (907) that is rotatably connected to the guide roller (906), a connecting rod (908) that connects the rotating shaft (907) and the guide block (5), and a guide block guide structure (909) for guiding the movement of the guide block (5).

9. A fully automatic cartoning machine according to claim 2, characterized in that: The guide block (5) is fixed with a repressing finger (10) for repressing the tongue (1203) pressed into the box body (1201).

10. A fully automatic cartoning machine according to claim 1, characterized in that: The side push rod (2) and the side push plate (1) are offset in the height direction.

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