Case sealer for beverage production lines
By using a pushing assembly consisting of rotatable rollers and sliding rods on the carton sealing machine in the beverage production line, the problem of the robotic arm's folding plate piercing the wing plate was solved, achieving damage-free folding and improving the appearance of the carton and the reliability of tape application.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN JIAJIALE FOOD & BEVERAGE CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-23
AI Technical Summary
The robotic arm of the sealing machine on the existing beverage production line punctured the wing panel of the carton, causing damage to the appearance and affecting the tape application process.
The rear wing is pushed by a rotating roller, combined with multiple sliding rods and compression springs to achieve elastic cushioning and folding, avoiding puncturing the wing.
This effectively prevents damage to the wing panels, reduces friction and wear, and ensures the appearance quality of the carton and the smooth progress of subsequent tape application.
Smart Images

Figure CN224393041U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a carton sealing machine for a beverage production line. Background Technology
[0002] Carton sealing machines on beverage production lines are used to close the top lids of cartons containing beverage products. Existing carton sealing machines, such as the carton top lid sealing device disclosed in Chinese Utility Model Patent CN 221341202 U, include a conveyor table with two conveyor belts mounted on it, and a carton sandwiched between the two belts. A pressure plate is mounted on the conveyor table and suspended above the conveyor belts. The pressure plate can fold the wing panels near the pressure plate along the length of the carton. A robotic arm is mounted on the conveyor table near the feeding end of the conveyor belt and is used to fold the wing panels away from the pressure plate along the length of the carton. Two sealing components are located on both sides of the pressure plate on the conveyor table for folding the wing panels on both sides along the width of the carton. A tape applicator is mounted on the discharge end of the conveyor belt to fix the folded wing panels. After the conveyor belt moves the carton to the designated position, the robotic arm first lifts it up to allow the carton to pass through until it reaches its highest point and then falls down. When the wing plate near the pressure plate contacts the pressure plate and folds inward, the robotic arm also contacts the wing plate away from the pressure plate and folds it inward. After the two wing plates in the length direction of the carton are folded 90 degrees, they are both pressed down by the pressure plate, thus realizing the folding of the front and rear wing plates.
[0003] However, the folding plate of the existing robotic arm is sharp. When the folding plate strikes the rear wing plate from a height at high speed, it will puncture the wing plate, causing damage and bulging. This will not only affect the appearance of the carton, but may even affect the subsequent tape application. Utility Model Content
[0004] The purpose of this utility model is to provide a carton sealing machine for a beverage production line, used to close the top cover of a carton containing beverage products. The top cover includes a front wing plate, a rear wing plate opposite to the front wing plate, and two side wing plates located on both sides of the front wing plate. The carton sealing machine includes a conveyor line for conveying the carton, a gantry frame spanning above the conveyor line, a pressure plate for folding the front wing plate, a folding rod for folding the two side wing plates, and a robotic arm for folding the rear wing plate. The pressure plate and folding rod are configured to... Both the fixed arm and the robotic arm are mounted on the gantry. The robotic arm includes a fixed arm, a movable arm, and a cylinder. One end of the fixed arm is fixedly mounted on the gantry, and the other end of the fixed arm is hinged to one end of the movable arm. The cylinder body is hinged to the fixed arm, and the piston rod of the cylinder is hinged to the movable arm. The cylinder drives the movable arm to swing up and down. The other end of the movable arm is provided with a pushing assembly. The pushing assembly includes a rotatable roller. When the movable arm swings downward, the roller pushes the rear wing plate to fold the rear wing plate.
[0005] This invention uses a rotatable roller to roll the rear wing plate, avoiding puncturing the rear wing plate and reducing wear caused by friction on the rear wing plate, thus ensuring the quality of the folded rear wing plate. Attached Figure Description
[0006] Figure 1 A perspective view of the present invention is shown;
[0007] Figure 2 An exploded perspective view of this utility model is shown;
[0008] Figure 3 The front view of this utility model is shown;
[0009] Figure 4 It shows in Figure 1 This is a schematic diagram showing the carton being conveyed forward to a predetermined position and the boom swinging downwards.
[0010] Figure 5 and Figure 6 Two perspective views of the boom of this utility model from different angles are shown respectively;
[0011] Figure 7 and Figure 8 The following are two exploded perspective views of the pushing assembly on the boom of this utility model from two different angles.
[0012] Icon labels:
[0013] 10. Cardboard box; 101. Front wing panel; 102. Rear wing panel; 103. Side wing panel;
[0014] 20 conveyor line; 30 gantry frame; 40 pressure plate; 50 folding rod;
[0015] 60 robotic arm, 601 fixed arm, 602 movable arm, 603 cylinder, 604 through hole;
[0016] 70 Push assembly, 701 Roller, 702 Wheel frame, 703 Sliding rod, 704 End, 705 Compression spring, 706 Nut. Detailed Implementation
[0017] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution.
[0018] like Figures 1 to 8The diagram shows a carton sealing machine on a beverage production line, used to close the top cover of a carton 10 containing beverage products. The top cover includes a front wing plate 101, a rear wing plate 102 opposite to the front wing plate 101, and two side wing plates 103 located on both sides of the front wing plate 101. The carton sealing machine includes a conveyor line 20 for conveying the carton 10, a gantry frame 30 spanning above the conveyor line 20, a pressure plate 40 for folding the front wing plate 101, a folding rod 50 for folding the two side wing plates 103, and a robotic arm 60 for folding the rear wing plate 102. The pressure plate 40, the folding rod 50, and the robotic arm 60 are all mounted on the gantry frame 30. The robotic arm 60 includes a fixed arm 601, a movable arm 602, and a cylinder 603. One end of the fixed arm 601 is fixedly mounted on the gantry frame 30, and the other end of the fixed arm 601 is hinged to one end of the movable arm 602. The cylinder body of the cylinder 603 is hinged to the fixed arm 601, and the piston rod of the cylinder 603 is hinged to the movable arm 602. The cylinder 603 drives the movable arm 602 to swing up and down. The other end of the movable arm 602 is provided with a pushing assembly 70.
[0019] The pushing assembly 70 includes a rotatable roller 701, which pushes the rear wing 102 to fold the rear wing 102 when the boom 602 swings downward.
[0020] This technical solution uses rotatable rollers to roll the rear wing, avoiding puncturing the rear wing and reducing wear caused by friction on the rear wing, thus ensuring the quality of the folded rear wing.
[0021] The pushing assembly 70 also includes a wheel frame 702 and multiple sliding rods 703. The roller 701 is rotatably mounted on the wheel frame 702. All the sliding rods 703 are spaced apart along the axial direction of the roller 701. One end of each sliding rod 703 slidably passes through the boom 602 and is fixed on the wheel frame 702. The other end of each sliding rod 703 is provided with an end 704 that abuts against the boom 602. Each sliding rod 703 is fitted with a compression spring 705 that pushes the end 704 of the sliding rod against the boom 602. One end of the compression spring 705 abuts against the wheel frame 702, and the other end of the compression spring 705 abuts against the boom 602.
[0022] This technical solution utilizes multiple sliding rods to allow the wheel frame and rollers to slide relative to the boom, and uses compression springs to achieve elastic cushioning. When the rollers strike the rear wing plate rapidly from a height, the wheel frame and rollers will slide relative to the boom in sequence, thereby achieving elastic pressure on the rear wing plate, playing a cushioning role, and further preventing the rear wing plate from being punctured.
[0023] In this embodiment, two sliding rods are shown in the figure, but the number of sliding rods 703 is not limited to the number shown in the figure. For example, there can be three or four sliding rods 703. Two nuts 706, clamping both sides of the wheel frame 702, are screwed onto one end of the sliding rod 703, locking one end of the sliding rod 703 to the wheel frame 702. A through hole 604 is provided on the boom 602 for the sliding rod 703 to pass through. The sliding engagement of the sliding rod 703 with the through hole 604 allows the wheel frame 702 to slide relative to the boom 602 under the guidance of the sliding rod 703. The wheel frame 702 is pushed forward by the force of the compression spring 705, causing the end 704 of the sliding rod to abut against the boom 602. By applying a backward thrust to the roller 701 or the wheel frame 702, the wheel frame 702 slides backward, and the end 704 of the sliding rod moves away from the boom 602. When the thrust is removed, the compression spring 705 pushes the wheel frame 702 forward to slide back to its original position, and the end 704 of the sliding rod abuts against the boom 602 again.
[0024] Structures not described in detail in this embodiment can be found in the prior art, especially the carton top cover sealing device disclosed in Chinese Utility Model Patent Specification CN 221341202 U mentioned in the background art.
[0025] The sealing process in this embodiment is as follows.
[0026] Cardboard boxes 10 containing beverage products pass through conveyor line 20 along Figure 3 The arrow points in the direction of forward transport.
[0027] The front wing 101 is pushed and folded by the pressure plate 40 during the forward movement of the carton 10.
[0028] like Figure 4 As shown, after the carton 10 reaches the predetermined position, the cylinder 603 drives the boom 602 to swing downward, and the roller 701 pushes the rear wing 102 from back to front to make the rear wing 102 fold.
[0029] Subsequently, the carton 10 continues to be conveyed forward, and the folding rods fold the two side wing panels. Specifically, there are two folding rods, distributed on both sides of the carton. Each folding rod can push a side wing panel to fold it during the conveyor transport of the carton. The construction of the folding rods can adopt existing technology. For details, please refer to the folding guide rod in the packaging equipment and method for fluffy material cartons disclosed in Chinese Invention Patent Application Publication CN 119774044 A, the folding column in the carton folding machine disclosed in Chinese Utility Model Patent Specification CN 221091352U, and the pressure rod in the packing and sealing paper pressing mechanism disclosed in Chinese Utility Model Patent Specification CN 222947056U, etc.
Claims
1. A carton sealing machine for a beverage production line, used to close the top cover of a carton containing beverage products, the top cover including a front wing plate, a rear wing plate opposite to the front wing plate, and two side wing plates located on both sides of the front wing plate, the carton sealing machine including a conveyor line for conveying the carton, a gantry frame spanning above the conveyor line, a pressure plate for folding the front wing plate, a folding rod for folding the two side wing plates, and a robotic arm for folding the rear wing plate, the pressure plate, the folding rod, and the robotic arm are all mounted on the gantry frame, the robotic arm including a fixed arm, a movable arm, and a cylinder, one end of the fixed arm being fixedly mounted on the gantry frame, the other end of the fixed arm being hinged to one end of the movable arm, the cylinder body of the cylinder being hinged to the fixed arm, the piston rod of the cylinder being hinged to the movable arm, the cylinder driving the movable arm to swing up and down, and the other end of the movable arm being provided with a pushing assembly, characterized in that: The pressing assembly includes a rotatable roller that presses against the rear wing to fold it over when the boom swings downward.
2. A case sealer on a beverage line as claimed in claim 1, characterized in that: The pushing assembly also includes a wheel frame and multiple sliding rods. The roller is rotatably mounted on the wheel frame. All the sliding rods are spaced apart along the axial direction of the roller. One end of each sliding rod slidably passes through the boom and is fixed to the wheel frame. The other end of each sliding rod is provided with an end that abuts against the boom. Each sliding rod is fitted with a compression spring that pushes the end of the sliding rod against the boom. One end of the compression spring abuts against the wheel frame, and the other end of the compression spring abuts against the boom.