Blind box opening machine

Abstract

The utility model discloses a blind box opening machine which comprises a machine frame, a conveying mechanism, a paper box feeding mechanism and a box bottom packaging mechanism. The rack bears all the functional assemblies, the conveying mechanism is matched with paper boxes of different sizes through the distance adjusting device, the paper box feeding mechanism places paper boards on the conveying mechanism to preliminarily form a paper frame, and the box bottom packaging mechanism completes side wing folding, inner tongue folding, tongue inserting, glue dispensing and overturning and pressing operation in sequence. High-precision operation is achieved through a mechanical structure driven by the air cylinder, equipment adaptability and production efficiency are remarkably improved, the problems that in the prior art, efficiency is low and adaptability is poor are solved, and wide applicability and practical value are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of paper box forming equipment, and in particular to a blind box opening machine. Background Technology

[0002] In the packaging industry, automated cardboard box forming equipment is a crucial tool for improving production efficiency and reducing labor costs. This is especially true in the packaging of emerging consumer products like blind boxes, where higher demands are placed on the precision, efficiency, and adaptability of cardboard box forming. However, existing cardboard box forming equipment has several shortcomings in practical applications. First, traditional equipment typically employs a fixed structural design, making it difficult to adapt to the production needs of cardboard boxes of different sizes and specifications, resulting in poor versatility and flexibility. Second, during the cardboard box bottom sealing process, existing equipment often relies on multiple independent processes to complete operations such as side wing folding, inner tongue insertion, and bottom cover clamping. The transitions between these processes are not smooth enough, and positioning deviations or operational errors can easily affect the quality of the finished product. Furthermore, existing equipment has low control precision in the glue application and clamping stages, which may lead to uneven glue application or insufficient clamping force, thus affecting the sealing and appearance of the cardboard box. More importantly, when processing incompletely formed cardboard boxes, traditional equipment often leaves the bottom cover in a horizontally unfolded state, requiring multiple folds and adjustments to complete the final sealing. This process not only increases the complexity of the equipment but also extends the production cycle. Therefore, developing an automated device capable of efficient cardboard box forming, precise packaging, and good adaptability has become a pressing technical challenge. This invention aims to overcome these shortcomings by providing a compact, smooth-operating, and highly adaptable blind box opening machine to meet the needs of the modern packaging industry. Utility Model Content

[0003] The purpose of this invention is to provide a blind box opening machine to overcome the shortcomings of the existing technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] The blind box opening machine includes a frame, on which a conveying mechanism and a cardboard feeding mechanism are mounted. The cardboard feeding mechanism is positioned above the conveying mechanism and places cardboard onto the conveying mechanism to initially form a cardboard frame. The frame is also equipped with a box bottom sealing mechanism, which is located on one side of the conveying mechanism. As the conveying mechanism sequentially feeds the cardboard frames through the various components of the box bottom sealing mechanism, the box bottom is sealed.

[0006] To elaborate further, the conveying mechanism includes a pair of placement uprights slidably mounted on a frame. The frame is equipped with a spacing adjustment device to control the spacing between the pair of placement uprights. This allows the placement uprights to accommodate cartons of different sizes for operation.

[0007] To elaborate further, the box bottom sealing mechanism includes a side wing folding assembly, a side wing retaining sheet metal, an inner tongue folding assembly, an insert tongue assembly, an adhesive dispensing assembly, and a flip-and-press assembly. The specific workflow is as follows: a conveyor mechanism transports the cardboard box to the side wing folding assembly for folding; after folding, the conveyor mechanism transports the side wing retaining sheet metal, positioned on one side of the side wing folding assembly, to keep the side wings closed. The box is then conveyed to the inner tongue folding assembly for downward folding of the inner tongue. The side wings and inner tongue are then kept closed by the subsequent side wing retaining sheet metal. Finally, the box reaches the insert tongue assembly, which inserts the inner tongue into the two pairs of side wings. The cardboard box is then transported to the flip-and-press assembly. During this process, the cardboard box first passes through the adhesive dispensing assembly and then the flip-and-press assembly. Adhesive is applied to the bottom cover of the cardboard box before it is tilted upwards by the flip-and-press assembly, pressing the bottom cover closed. It's worth noting that the bottom cover of the cardboard box is horizontally unfolded before it is formed, and it is continuously conveyed in this unfolded state by the conveyor mechanism until it reaches the flip-pressing assembly, where it is folded up for bonding and pressing. The side wing retaining sheet metal is mounted on one side of the conveyor mechanism, the side wing folding assembly is mounted to the right of the inner tongue folding assembly, the tongue assembly is positioned to the left of the inner tongue folding assembly, the flip-pressing assembly is positioned to the left of the tongue assembly, and the glue dispensing assembly is arranged adjacent to the flip-pressing assembly and the tongue assembly. The conveyor mechanism transports the cardboard box from right to left, sequentially passing it through the side wing folding assembly, the side wing retaining sheet metal, the inner tongue folding assembly, the tongue assembly, the glue dispensing assembly, and the flip-pressing assembly.

[0008] To elaborate further, the side wing folding assembly includes a first bracket and a lever cylinder rotatably mounted on the frame. The first bracket is rotatably connected to a first rotating shaft. The piston rod of the lever cylinder is hinged to an adapter. One end of the adapter is fixedly connected to the end of the first rotating shaft. A lever is mounted on the top of the first rotating shaft. The lever has an L-shaped structure. The lever cylinder is used to control the left and right deflection of the lever.

[0009] To elaborate further, the inner tongue folding assembly includes a second bracket fixedly mounted on the frame and a folding rod cylinder rotatably connected to the frame. The second bracket is rotatably connected to a rotating shaft, and a rotating rod is fixedly mounted on the side wall of the rotating shaft. A connecting rod is hinged to the end of the piston rod of the folding rod cylinder, and the end of the connecting rod is fixedly connected to the rotating shaft. A folding rod is fixedly mounted on one end of the rotating rod, and the folding rod cylinder is used to control the up-and-down flipping of the folding rod.

[0010] To elaborate further, the tongue assembly is fixedly mounted on the third bracket on the frame, and a tongue cylinder is fixedly mounted on the third bracket. A tongue top post is fixedly mounted at the end of the piston rod of the tongue cylinder. The tongue cylinder is used to control the horizontal movement of the tongue top post so as to insert the inner tongue into a pair of side wings.

[0011] To elaborate further, the dispensing assembly includes a side wing retaining sheet metal fixedly mounted on the frame, a dispensing cylinder fixedly mounted on the side wing retaining sheet metal, a positioning rod fixedly mounted on the output end of the dispensing cylinder, a dispensing gun mounted on the positioning rod, and the end of the dispensing gun extending vertically downward.

[0012] To elaborate further, the positioning rod has an elongated elliptical adjustment groove in the middle, through which the glue gun is mounted on the positioning rod. The glue gun is responsible for applying glue to the inner wall of the bottom cover, and its position on the adjustment groove can be adjusted according to the different lengths of cardboard boxes.

[0013] To further elaborate, the flipping and clamping assembly includes a packaging cylinder that is tilted and fixed to the frame. A packaging pressure plate is fixedly mounted on the piston rod of the packaging cylinder, and the packaging pressure plate extends tilted upwards towards the conveying mechanism. The packaging cylinder controls the packaging pressure plate to move obliquely upwards and reciprocally.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By incorporating a spacing adjustment device, the conveying mechanism can adapt to cartons of different sizes, significantly improving the equipment's adaptability. Furthermore, the close cooperation of each functional component sequentially completes the forming and sealing of the cartons, significantly enhancing production efficiency. In particular, the use of cylinder-driven mechanical structures (such as lever cylinders and folding lever cylinders) ensures operational precision for each process. Additionally, the glue gun in the dispensing assembly can be adjusted via an adjustment slot, enhancing the equipment's versatility. The reasonable design of the side wing retains the sheet metal, ensuring that the side wing remains closed throughout the transport process, preventing sealing failure due to loosening. In summary, this invention provides a compact, easy-to-operate, and widely applicable blind box opening machine, solving the problems of low efficiency and poor adaptability in existing carton forming and sealing technologies, demonstrating significant technological advancement and practical value. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention, ignoring the frame.

[0017] Figure 2 This is a structural schematic diagram of the present invention from another perspective, ignoring the frame.

[0018] Attached image annotations:

[0019] 1. Carton feeding mechanism; 2. Conveying mechanism; 3. Lever cylinder; 4. Lever; 5. First support; 6. Adapter; 7. First rotating shaft; 8. Folding lever cylinder; 9. Connecting rod; 10. Second support; 11. Rotating rod; 12. Third support; 13. Tongue cylinder; 14. Sealing plate; 15. Sealing cylinder; 16. Folding lever; 17. Tongue top post; 18. Placement plate; 19. Spacing adjustment device; 20. Glue gun; 21. Positioning rod; 22. Glue cylinder; 23. Side wing retaining sheet metal. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. When the number of elements is referred to as "multiple," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings:

[0024] Combination Figure 1 and Figure 2 The structural diagram shown illustrates the specific implementation of the blind box opening machine provided by this utility model. The equipment mainly includes a frame, a conveying mechanism 2, a cardboard box feeding mechanism 1, and a box bottom sealing mechanism. These components work together to achieve an automated production process from cardboard to a finished cardboard box. The structural design, operating principle, and operation process of the equipment will be described in detail below with reference to the component numbers in the accompanying drawings.

[0025] The frame, serving as the fundamental support framework for the entire equipment, bears and secures all functional components, ensuring the stability and reliability of the equipment during operation. A conveying mechanism 2 is mounted on the frame, consisting of a pair of placement uprights 18 sliding on the frame for clamping and conveying paper boxes. The frame also features a spacing adjustment device 19, which adjusts the spacing between the placement uprights 18 via mechanical or electrical control to accommodate paper boxes of different sizes. For example, when processing wider paper boxes, the spacing adjustment device 19 drives the two placement uprights 18 outward via screw drive or electric push rod; conversely, it retracts inward to meet actual production needs.

[0026] The cardboard feeding mechanism 1 is mounted above the conveying mechanism 2. Its function is to place cardboard on the conveying mechanism 2 and initially shape it into a cardboard frame. The cardboard feeding mechanism 1 typically includes an automatic feeding device and a set of forming molds. A robotic arm or suction cups removes the cardboard from the hopper and places it between the placement plates 18 of the conveying mechanism 2. Subsequently, the forming mold applies pressure to the cardboard, causing it to be initially folded into the shape of a cardboard frame. This process ensures that the cardboard can enter subsequent processing steps in the correct posture.

[0027] The box bottom sealing mechanism is located on one side of the conveying mechanism 2 and includes multiple functional components that sequentially complete the sealing operation of the carton bottom cover. These components include a side wing folding assembly, a side wing retaining sheet metal 23, an inner tongue folding assembly, a tongue insertion assembly, an adhesive dispensing assembly, and a flipping and pressing assembly. Specifically, the side wing folding assembly consists of a first bracket 5 and a lever cylinder 3. The first bracket 5 is rotatably connected to a first rotating shaft 7, and the piston rod of the lever cylinder 3 is hinged to an adapter 6. One end of the adapter 6 is fixedly connected to the end of the first rotating shaft 7, and a lever 4 is mounted on the top of the first rotating shaft 7. The lever 4 has an L-shaped structure. The lever cylinder 3 drives the lever 4 to deflect left and right through a telescopic movement, thereby achieving precise folding of the carton side wings. In actual operation, the lever 4 first contacts the edge of the carton side wing, and then folds the side wing to a vertical state along a preset direction through a swinging motion. This design ensures the accuracy of the angle and position of the side wing folding and avoids errors caused by manual operation.

[0028] The side wing retaining sheet metal 23, located on one side of the side wing folding assembly, is used to keep the side wing closed after folding and is conveyed to the next process by the conveyor mechanism 2. Made of elastic material, the side wing retaining sheet metal 23 provides sufficient clamping force without damaging the carton surface, ensuring the side wing remains closed throughout the conveying process. Furthermore, the side wing retaining sheet metal 23 is height-adjustable according to the height of the carton, further enhancing the adaptability of the equipment.

[0029] The inner tongue folding assembly consists of a second support 10 and a folding rod cylinder 8. The second support 10 is rotatably connected to a rotating shaft, and a rotating rod 11 is fixedly mounted on the side wall of the rotating shaft. A connecting rod 9 is hinged to the end of the piston rod of the folding rod cylinder 8, and the end of the connecting rod 9 is fixedly connected to the rotating shaft. A folding rod 16 is fixedly mounted at one end of the rotating rod 11. The folding rod cylinder 8 drives the folding rod 16 to flip up and down through its extension and retraction motion, thereby achieving the downward folding operation of the inner tongue. In actual operation, the folding rod 16 first contacts the edge of the inner tongue of the paper frame, and then folds the inner tongue to a horizontal state along a preset direction through a downward swinging motion. This design not only improves the efficiency of the inner tongue folding but also ensures the consistency of the folding angle.

[0030] The tongue insertion assembly consists of a third bracket 12 and a tongue insertion cylinder 13, with a tongue insertion top post 17 fixedly mounted on the third bracket 12. The tongue insertion cylinder 13 controls the horizontal movement of the tongue insertion top post 17 through its extension and retraction motion, inserting the inner tongue into the two pairs of side wings. In actual operation, the tongue insertion top post 17 first contacts the outer edge of the inner tongue, and then, through a horizontal pushing motion, accurately inserts the inner tongue into the gap between the side wings. This design effectively avoids misalignment problems caused by manual operation and significantly improves production efficiency.

[0031] The dispensing assembly consists of a dispensing cylinder 22, a positioning rod 21, and a dispensing gun 20. The dispensing gun 20 is mounted on the positioning rod 21 via an elongated elliptical adjustment slot, allowing its position to be adjusted according to the length of the cardboard box. The dispensing cylinder 22 controls the movement of the dispensing gun 20 along the adjustment slot through its telescopic motion, thereby applying glue to the inner wall of the bottom cover. In actual operation, the dispensing gun 20 first positions itself on the designated area of ​​the inner wall of the bottom cover, and then evenly covers the surface of the bottom cover with glue by spraying or smearing. This design not only improves the accuracy of dispensing but also enhances the versatility of the equipment, enabling it to adapt to cardboard boxes of different lengths.

[0032] The flipping and clamping assembly consists of a sealing cylinder 15 and a sealing plate 14. The sealing cylinder 15 is tilted and fixed on the frame, and the sealing plate 14 extends tilted upwards towards the conveyor mechanism 2. The sealing cylinder 15 controls the sealing plate 14 to move obliquely upwards and reciprocate through its telescopic movement, thereby folding and pressing the bottom cover closed. In actual operation, the sealing plate 14 first contacts the edge of the carton bottom cover, and then folds the bottom cover to a closed state by tilting upwards, applying sufficient pressure to ensure a firm adhesive bond. This design not only improves the reliability of the bottom cover sealing but also significantly shortens the sealing time.

[0033] The blind box opening machine's workflow includes the following steps: S1: Cardboard is placed on conveying mechanism 2 via cardboard feeding mechanism 1 and initially formed into a cardboard frame; S2: The cardboard frame is conveyed from right to left via conveying mechanism 2 to the side wing folding assembly for side wing folding; S3: The folded cardboard frame is held closed by the side wing retaining sheet metal 23 and conveyed to the inner tongue folding assembly for inner tongue downward folding; S4: The folded cardboard frame is conveyed to the tongue insertion assembly, where the tongue insertion top post 17 inserts the inner tongue into the two pairs of side wings; S5: The cardboard frame is conveyed to the glue dispensing assembly, where the glue gun 20 applies glue to the inner wall of the bottom cover; S6: Finally, the cardboard frame is conveyed to the flipping and pressing assembly, where the sealing plate 14 folds the bottom cover and presses it closed.

[0034] Through the above structural design and operating procedures, the blind box opening machine provided by this utility model realizes a fully automated production process from cardboard to finished box. The equipment, by setting a spacing adjustment device 19, allows the conveying mechanism 2 to adapt to boxes of different sizes, significantly improving the equipment's adaptability. The various functional components work closely together to complete the forming and sealing of the boxes sequentially, significantly improving production efficiency. The use of cylinder-driven mechanical structures (such as lever cylinder 3, folding lever cylinder 8, etc.) ensures operational precision for each process. Furthermore, the glue gun 20 in the glue dispensing assembly can be adjusted in position via an adjustment slot, enhancing the equipment's versatility. The side wing retaining sheet metal 23 is rationally designed to ensure that the side wings remain closed during transmission, avoiding sealing failure due to loosening. In summary, this utility model provides a blind box opening machine that is compact, easy to operate, and widely applicable, solving the problems of low efficiency and poor adaptability in existing cardboard box forming and sealing technologies, demonstrating significant technological progress and practical value.

[0035] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. For those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A blind box opening machine, including a frame, characterized in that: The frame is equipped with a conveying mechanism and a carton feeding mechanism. The carton feeding mechanism is mounted above the conveying mechanism. The frame is also equipped with a carton bottom sealing mechanism, which is located on one side of the conveying mechanism.

2. The blind box opening machine as described in claim 1, characterized in that: The conveying mechanism includes a pair of placement plates that slide on a frame. The frame is equipped with a spacing adjustment device for controlling the spacing between the pair of placement plates.

3. The blind box opening machine as described in claim 1, characterized in that: The box bottom sealing mechanism includes a side wing folding assembly, a side wing retaining sheet metal, an inner tongue folding assembly, a tongue insertion assembly, a dispensing assembly, and a flip-and-press assembly. The side wing retaining sheet metal is mounted on one side of the conveying mechanism, the side wing folding assembly is mounted on the right side of the inner tongue folding assembly, the tongue insertion assembly is arranged on the left side of the inner tongue folding assembly, the flip-and-press assembly is arranged on the left side of the tongue insertion assembly, and the dispensing assembly is arranged adjacent to the flip-and-press assembly and the tongue insertion assembly.

4. The blind box opening machine as described in claim 3, characterized in that: The side wing folding assembly includes a first bracket and a lever cylinder rotatably mounted on the frame. The first bracket is rotatably connected to a first rotating shaft. The piston rod of the lever cylinder is hinged to an adapter. One end of the adapter is fixedly connected to the end of the first rotating shaft. A lever with an L-shaped structure is mounted on the top of the first rotating shaft. The lever cylinder is used to control the left and right deflection of the lever.

5. The blind box opening machine as described in claim 3, characterized in that: The inner tongue folding assembly includes a second bracket fixedly mounted on the frame and a folding rod cylinder rotatably connected to the frame. The second bracket is rotatably connected to a rotating shaft, and a rotating rod is fixedly mounted on the side wall of the rotating shaft. A connecting rod is hinged to the end of the piston rod of the folding rod cylinder, and the end of the connecting rod is fixedly connected to the rotating shaft. A folding rod is fixedly mounted on one end of the rotating rod. The folding rod cylinder is used to control the up and down flipping of the folding rod.

6. The blind box opening machine as described in claim 3, characterized in that: The tongue insertion assembly is fixedly mounted on the third bracket on the frame. The tongue insertion cylinder is fixedly mounted on the third bracket. The end of the piston rod of the tongue insertion cylinder is fixedly mounted with a tongue insertion top post. The tongue insertion cylinder is used to control the horizontal movement of the tongue insertion top post so as to insert the inner tongue into a pair of side wings.

7. The blind box opening machine as described in claim 3, characterized in that: The dispensing assembly includes a side wing retaining sheet metal fixedly mounted on the frame, a dispensing cylinder fixedly mounted on the side wing retaining sheet metal, a positioning rod fixedly mounted on the output end of the dispensing cylinder, a dispensing gun mounted on the positioning rod, and the end of the dispensing gun extending vertically downward.

8. The blind box opening machine as described in claim 7, characterized in that: The positioning rod has an elongated elliptical adjustment groove in the middle, through which the glue gun is mounted on the positioning rod.

9. The blind box opening machine as described in claim 3, characterized in that: The flipping and clamping assembly includes a packaging cylinder that is tilted and fixed on the frame. The piston rod of the packaging cylinder is fixedly equipped with a packaging pressure plate, which extends tilted upwards toward the conveying mechanism. The packaging cylinder controls the packaging pressure plate to move obliquely upwards and back and forth.

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