Box folding, forming and bottom sealing mechanism of box unpacking machine
By designing a box-folding and sealing mechanism for a box-opening machine, automatic bottom sealing and glue sealing are achieved using a conveyor belt and cylinders. This solves the problems of complex structure and low efficiency in existing technologies, realizes automated bottom sealing and glue cutting, and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-03
AI Technical Summary
The existing box-opening machine's bottom sealing mechanism requires four sets of push plate mechanisms, resulting in a complex structure, high cost, and low processing efficiency. Furthermore, sealing and cutting the glue require manual operation.
A box forming and sealing mechanism was designed, including a feeding component, a sealing component, and a sealing component. It uses a conveyor belt, a cylinder, and a tape roll to achieve automatic sealing and sealing, reducing the number of parts and automatically cutting the tape.
The simplified structure reduces costs, enables automatic bottom sealing and glue cutting, improves processing efficiency, and adapts to different carton sizes.
Smart Images

Figure CN224075882U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carton opening machine technology, specifically to a carton opening machine's folding, forming, and sealing bottom mechanism. Background Technology
[0002] A carton erector is an automated packaging device mainly used to automatically complete the processes of opening, forming, folding, and sealing cartons. During carton processing, sealing the bottom of the carton is necessary. Current carton erectors typically require four sets of pusher mechanisms to push four movable cardboard pieces at the bottom of the carton to achieve sealing. However, using four pusher mechanisms significantly increases the number of parts in the machine, making its structure complex and poorly designed, thus increasing operating costs. After sealing, manual application of adhesive tape is required, followed by manual cutting of the tape before the carton is output. This manual sealing and tape cutting also leads to low processing efficiency. Utility Model Content
[0003] The purpose of this utility model is to provide a box folding and sealing mechanism for a box opening machine. This box folding and sealing mechanism has the advantages of reasonable design, simple structure, reduced number of machine parts, reduced operating costs, automatic sealing and tape cutting, eliminating the trouble of manual operation, and improving processing efficiency, thus solving the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a box folding and sealing mechanism for a box opening machine, the box folding and sealing mechanism including a base and a feeding component, a sealing component and a sealing component disposed on the base, the sealing component being located between the feeding component and the sealing component;
[0005] The feeding assembly includes two fixed seats and feeding motors fixed to the lower end faces of the two fixed seats respectively. The output ends of the two feeding motors are respectively connected to conveyor belts. The two conveyor belts run synchronously. The two conveyor belts are used to limit the two sides of the carton and push the carton forward. A receiving plate and a conveying plate fixedly connected to the receiving plate are set between the two conveyor belts. The two conveyor belts are respectively set in the two fixed seats and can run smoothly.
[0006] The bottom sealing assembly includes two mounting plates and two second cylinders fixed to the two mounting plates respectively. The two mounting plates are fixed to the lower end faces of two fixed seats respectively. The output ends of the two second cylinders are respectively provided with a first adapter plate, a second adapter plate and a positioning piece. The upper end faces of the two positioning pieces are respectively fixed with bottom sealing push plates. The two bottom sealing push plates can run in opposite directions to push the movable cardboard on both sides of the bottom of the carton, thereby sealing the bottom of the carton.
[0007] The sealing assembly includes an extension base and a cutter fixed to the top of the extension base. A lower extension plate and a tape roll mounted on the lower extension plate are provided at the bottom of the extension base. The tape roll is used to store tape. Two support plates and sealing rolls are respectively mounted on the two support plates at the top of the extension base. The lower extension plate and the support plates are both fixed to the extension base. The height of the two sealing rolls is equal.
[0008] Preferably, both fixing seats are fixed to the upper surface of the base, and the two fixing seats are arranged in parallel.
[0009] Preferably, the feeding assembly also includes a receiving plate and a first cylinder fixed on the receiving plate. The receiving plate is fixed on the base, and the output end of the first cylinder is movably connected to a receiving plate. The conveying plate is fixed on the receiving plate. When the first cylinder is running, it can drive the end of the receiving plate away from the conveying plate to bend to a certain extent, so as to better receive the carton. However, the bending of the receiving plate will not affect the structural stability of the receiving plate and the conveying plate.
[0010] Preferably, the output ends of the two second cylinders are movably connected to the two first adapter plates, and the two first adapter plates are movably connected to the two positioning plates through the two second adapter plates, so that the two second cylinders can drive the two positioning plates to move horizontally during operation, thereby causing the two bottom sealing push plates to move horizontally as well, pushing the movable cardboard on both sides of the bottom of the carton to move closer to each other and fit against the carton body, thus sealing the bottom of the carton.
[0011] Preferably, the sealing assembly also includes an upper lifting plate, which is fixed to the base and has its end away from the cutter bent downwards. Therefore, the upper lifting plate can guide the carton upwards so that the bottom of the carton passes through two sealing rollers. During this process, the tape conveyed on the two sealing rollers adheres to the movable cardboard at the bottom of the carton, thereby achieving automatic sealing.
[0012] Preferably, an adjustable pitch assembly is also provided on the base. The adjustable pitch assembly includes an adjustable pitch motor and a synchronous pulley set connected to the adjustable pitch motor. The adjustable pitch motor is fixed on the base, and the synchronous pulley set is installed on the outside of the base. A housing is provided on the outside of the synchronous pulley set, and the housing is also fixed on the base. A lead screw and a guide rod are provided on one side of the synchronous pulley set. The synchronous pulley set is connected to the lead screw, and two parallel lower support seats are provided on the lead screw.
[0013] Preferably, two lower support seats are symmetrically arranged at both ends of the lead screw, and both lower support seats are arranged on the guide rod, and two fixed seats are respectively fixed on the two lower support seats.
[0014] Preferably, the lead screw and guide rod are arranged in parallel, and the threads at both ends of the lead screw are turned in opposite directions. Both ends of the guide rod are fixedly connected to the base. When the lead screw is running, the lower support seats symmetrically arranged at both ends will translate in opposite directions, thereby adjusting the distance between the two fixed seats to accommodate cartons of different sizes.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model provides a box folding and bottom sealing mechanism for a box opening machine. The box folding and bottom sealing mechanism includes a base and a feeding assembly, a bottom sealing assembly, a sealing assembly, and an adjusting assembly mounted on the base. The overall design is reasonable and the structure is simple. The feeding assembly includes two fixed seats and feeding motors respectively fixed to the lower end faces of the two fixed seats. The output ends of the two feeding motors are respectively connected to conveyor belts. A receiving plate and a conveying plate fixedly connected to the receiving plate are provided between the two conveyor belts. Furthermore, the feeding assembly also includes a receiving plate and a first cylinder fixed to the receiving plate. The output end of the cylinder is movably connected to a receiving plate, and the conveyor plate is fixed on the receiving plate. When the first cylinder runs, it can drive the end of the receiving plate away from the conveyor plate to bend to a certain extent. As the carton is fed from the previous mechanism to this mechanism, the bent receiving plate automatically pushes the movable cardboard on one side of the bottom of the carton, so that the movable cardboard is attached to the bottom of the carton, thus achieving automatic bottom sealing. Therefore, one bottom sealing operation is reduced, which helps to reduce the number of parts of the whole machine and reduce operating costs, which is economical and practical.
[0017] 2. The sealing assembly in this utility model includes an extension base and a cutter fixed to the top of the extension base. A lower extension plate and a tape roll mounted on the lower extension plate are provided at the bottom of the extension base. Two support plates and sealing rolls respectively mounted on the top of the extension base are provided at the top. The tape is output upwards from the tape rolls, then passes through the two sealing rolls and is cut near the cutter. After the carton is fed onto the two sealing rolls by the lifting plate, it is conveyed forward by the two sealing rolls and automatically adheres to the tape conveyed on the two sealing rolls, achieving automatic sealing. Subsequently, the carton passes over the cutter, and the weight of the carton causes the tape to press against the cutter, automatically cutting the tape. Therefore, the folding and sealing mechanism of this carton opener can automatically seal and cut the tape, eliminating the hassle of manual operation and improving processing efficiency.
[0018] 3. The pitch adjustment component in this utility model includes a pitch adjustment motor and a synchronous pulley assembly connected to the pitch adjustment motor. The synchronous pulley assembly is installed on the outside of the base, and a lead screw and a guide rod are provided on one side of the synchronous pulley assembly. The synchronous pulley assembly is connected to the lead screw, and the threads at both ends of the lead screw have opposite directions. Two parallel lower support seats are provided on the lead screw, and the two lower support seats are symmetrically arranged at both ends of the lead screw. Both lower support seats are set on the guide rod, and two fixed seats are fixed on the two lower support seats respectively. Both ends of the guide rod are fixedly connected to the base. The pitch adjustment motor, in conjunction with the synchronous pulley assembly, drives the lead screw to rotate, thereby adjusting the distance between the two lower support seats and the two fixed seats above them. This facilitates sealing the bottom of cartons of different widths, thereby improving the applicability of the carton folding and sealing mechanism of the carton opener, making it suitable for widespread use. Attached Figure Description
[0019] Figure 1 This is one of the schematic diagrams of an embodiment of the present utility model;
[0020] Figure 2 This is a second schematic diagram of an embodiment of the present utility model;
[0021] Figure 3 This is the third schematic diagram of an embodiment of the present utility model;
[0022] Figure 4 This utility model Figure 3 Enlarged view of A in the middle;
[0023] Figure 5 This is the fourth schematic diagram of an embodiment of the present utility model;
[0024] Figure 6 This is the fifth schematic diagram of an embodiment of the present utility model.
[0025] The reference numerals and names in the diagram are as follows: 1. Base; 2. Feeding assembly; 21. Fixed seat; 22. Feeding motor; 23. Conveyor belt; 24. Receiving plate; 25. First cylinder; 26. Receiving plate; 27. Conveying plate; 3. Bottom sealing assembly; 31. Mounting plate; 32. Second cylinder; 33. First adapter plate; 34. Second adapter plate; 35. Positioning piece; 36. Bottom sealing push plate; 4. Sealing assembly; 41. Extension seat; 42. Cutter; 43. Lower extension piece; 44. Tape roll; 45. Support piece; 46. Sealing roll; 47. Lifting plate; 5. Adjustment assembly; 51. Adjustment motor; 52. Lead screw; 53. Guide rod; 54. Lower support seat. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0029] Please see Figure 1 The present invention provides an embodiment of a box forming and sealing mechanism for a box opening machine, comprising a base 1 and a feeding component 2, a sealing component 3, a sealing component 4 and an adjusting component 5 disposed on the base 1. The sealing component 3 is located between the feeding component 2 and the sealing component 4, and the adjusting component 5 is located below the feeding component 2.
[0030] Please see Figure 2The feeding assembly 2 includes two parallel fixed seats 21 and feeding motors 22 respectively fixed to the lower end faces of the two fixed seats 21. Both fixed seats 21 are fixed to the upper end face of the base 1. The output ends of the two feeding motors 22 are respectively connected to conveyor belts 23. The two conveyor belts 23 operate synchronously. The two conveyor belts 23 are used to limit the sides of the carton and push the carton forward. A receiving plate 26 and a conveying plate 27 fixedly connected to the receiving plate 26 are provided between the two conveyor belts 23. The two conveyor belts 23 are respectively positioned on the two fixed seats 21. The material is placed in the base 21, and the two conveyor belts 23 can run smoothly. In addition, the feeding assembly 2 also includes a receiving plate 24 and a first cylinder 25 fixed on the receiving plate 24. The receiving plate 24 is fixed on the base 1. The output end of the first cylinder 25 is movably connected to the receiving plate 26. The conveying plate 27 is fixed on the receiving plate 24. Therefore, when the first cylinder 25 runs, it can drive the end of the receiving plate 26 away from the conveying plate 27 to bend to a certain extent, so as to better receive the carton. However, the bending of the receiving plate 26 will not affect the structural stability of the receiving plate 26 and the conveying plate 27.
[0031] Please see Figure 3 The bottom sealing assembly 3 includes two mounting plates 31 and a second cylinder 32 fixed on the two mounting plates 31 respectively. The two mounting plates 31 are fixed to the lower end faces of the two fixing seats 21 respectively. The sealing assembly 4 includes an extension seat 41. A lower extension piece 43 and a tape roll 44 mounted on the lower extension piece 43 are provided at the bottom of the extension seat 41. The tape roll 44 is used to store tape.
[0032] Please see Figure 4 The output ends of the two second cylinders 32 are respectively provided with a first adapter plate 33, a second adapter plate 34 and a positioning piece 35. The output ends of the two second cylinders 32 are movably connected to the two first adapter plates 33. The two first adapter plates 33 are movably connected to the two positioning pieces 35 through the two second adapter plates 34. A bottom sealing push plate 36 is fixed on the upper surface of the two positioning pieces 35, so that the two second cylinders 32 can drive the two positioning pieces 35 to move horizontally when running, thereby causing the two bottom sealing push plates 36 to move horizontally as well, pushing the movable cardboard on both sides of the bottom of the carton to move closer to each other and fit against the carton body to seal the bottom of the carton. The two bottom sealing push plates 36 can run in opposite directions to push the movable cardboard on both sides of the bottom of the carton, thereby sealing the bottom of the carton.
[0033] Please see Figure 5The sealing assembly 4 also includes a cutter 42 fixed to the top of the extension base 41. The top of the extension base 41 is provided with two support plates 45 and sealing rolls 46 respectively mounted on the two support plates 45. The lower extension plate 43 and the support plates 45 are both fixed to the extension base 41. The height values of the two sealing rolls 46 are equal. In addition, the sealing assembly 4 also includes an upper lifting plate 47, which is fixed to the base 1. The end of the upper lifting plate 47 away from the cutter 42 is bent downward. Therefore, the upper lifting plate 47 can guide the carton upward so that the bottom of the carton passes through the two sealing rolls 46. During this process, the tape conveyed on the two sealing rolls 46 adheres to the movable cardboard at the bottom of the carton, realizing automatic sealing.
[0034] Please see Figure 6 The pitch adjustment assembly 5 includes a pitch adjustment motor 51 and a synchronous pulley assembly connected to the pitch adjustment motor 51. The pitch adjustment motor 51 is fixed on the base 1, and the synchronous pulley assembly is installed on the outside of the base 1. A housing is provided on the outside of the synchronous pulley assembly, and the housing is also fixed on the base 1. A lead screw 52 and a guide rod 53 are provided on one side of the synchronous pulley assembly. The synchronous pulley assembly is connected to the lead screw 52. Two parallel lower support seats 54 are provided on the lead screw 52. The two lower support seats 54 are symmetrically arranged at both ends of the lead screw 52, and both lower support seats 54 are provided on the guide rod 53. Two fixed seats 21 are respectively fixed on the two lower support seats 54. The lead screw 52 and the guide rod 53 are parallel, and the threads at both ends of the lead screw 52 are opposite in direction. Both ends of the guide rod 53 are fixedly connected to the base 1. When the lead screw 52 is running, the lower support seats 54 symmetrically arranged at both ends will translate in opposite directions, thereby adjusting the distance between the two fixed seats 21 to accommodate cartons of different sizes.
[0035] Please refer to the following: Figures 1 to 6In the operation of this invention, two feeding motors 22 drive two conveyor belts 23. Cartons are input from the receiving plate 26 away from the conveyor plate 27. During input, the bent receiving plate 26 pushes one side of the movable cardboard at the bottom of the carton, causing it to automatically adhere to the bottom of the carton. The other movable cardboard, opposite to this one, is pushed by an external structure, which is existing technology and will not be described further. The carton is then constrained by the two conveyor belts 23 and transported forward under their operation. When the cardboard is fed between the two bottom sealing push plates 36, the two second cylinders 32 are driven to operate, causing the two bottom sealing push plates 36 to move closer to each other, thereby pushing the other two opposing movable cardboard pieces at the bottom of the carton to adhere to the bottom of the carton. At this time, all four movable cardboard pieces can adhere to the bottom of the carton. After that, the carton moves slightly upward under the action of the lifting plate 47, passes through the two sealing rolls 46, and automatically adheres to the tape conveyed on the two sealing rolls 46, realizing automatic sealing. Finally, the carton is output from above the cutter 42, and the tape is cut by the weight of the carton itself pressing on the cutter 42.
[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A box folding and bottom sealing mechanism of a case unpacking machine, characterized by: The utility model relates to a bottom sealing and gluing device, including base (1) and set up on base (1) loading assembly (2), bottom sealing assembly (3) and glue sealing assembly (4), bottom sealing assembly (3) is located between loading assembly (2) and glue sealing assembly (4), Wherein loading assembly (2) includes two fixed seat (21) and loading motor (22) fixed on the lower end surface of two fixed seat (21) respectively, the output of two loading motor (22) is connected with conveyor belt (23) respectively, two conveyor belt (23) synchronous operation is arranged with the receiving plate (26) between two conveyor belt (23) and the fixed connection of conveying plate (27) with receiving plate (26), two conveyor belt (23) are arranged in two fixed seat (21) respectively, Wherein bottom sealing assembly (3) includes two mounting plate (31) and second cylinder (32) fixed on two mounting plate (31) respectively, two mounting plate (31) are fixed on the lower end surface of two fixed seat (21) respectively, the output of two second cylinder (32) is provided with first adapter plate (33), second adapter plate (34) and positioning piece (35) respectively, the upper end surface of two positioning piece (35) is fixed with bottom sealing push plate (36) respectively, Wherein glue sealing assembly (4) includes extension seat (41) and cutting knife (42) fixed on the top of extension seat (41), the bottom of extension seat (41) is provided with lower extension piece (43) and adhesive tape reel (44) installed on lower extension piece (43), and the top of extension seat (41) is provided with two support pieces (45) and glue sealing reel (46) installed on two support pieces (45) respectively, the lower extension piece (43) and support piece (45) are fixed on extension seat (41).
2. The box folding and bottom forming mechanism of the box opening machine according to claim 1, characterized in that: Two fixed seat (21) are fixed on the upper end surface of base (1), and two fixed seat (21) are arranged in parallel.
3. The box folding and bottom forming mechanism of the box opening machine according to claim 1, characterized in that: The loading assembly (2) further includes a receiving plate (24) and a first cylinder (25) fixed on the receiving plate (24), the receiving plate (24) is fixed on the base (1), and the output end of the first cylinder (25) is movably connected with the receiving plate (26), and the conveying plate (27) is fixed on the receiving plate (24).
4. The box opening machine according to claim 1, wherein: The output ends of the two second cylinders (32) are movably connected with the two first adapter plates (33), and the two first adapter plates (33) are movably connected with the two positioning pieces (35) through the two second adapter plates (34).
5. The carton folding and bottom forming mechanism of an unpacking machine according to claim 1, characterized in that: The glue sealing assembly (4) further includes a lifting plate (47), the lifting plate (47) is fixed on the base (1), and the end of the lifting plate (47) away from the cutting knife (42) is bent downward.
6. The carton folding and bottom forming mechanism of an unpacking machine according to claim 1, characterized in that: The base (1) is further provided with a distance adjusting assembly (5), which is located below the feeding assembly (2), and the distance adjusting assembly (5) comprises a distance adjusting motor (51) and a synchronous pulley set connected with the distance adjusting motor (51), the distance adjusting motor (51) is fixed on the base (1), the synchronous pulley set is installed on the outer side of the base (1), one side of the synchronous pulley set is provided with a lead screw (52) and a guide rod (53), the synchronous pulley set is connected with the lead screw (52), and two parallel lower supporting seats (54) are arranged on the lead screw (52).
7. The carton folding and bottom forming mechanism of an unpacking machine according to claim 6, characterized in that: The two lower supporting seats (54) are symmetrically arranged at the two ends of the lead screw (52), and the two lower supporting seats (54) are arranged on the guide rod (53), and the two fixing seats (21) are respectively fixed on the two lower supporting seats (54).
8. The box opening machine according to claim 7, wherein: The lead screw (52) and the guide rod (53) are arranged in parallel, the thread directions of the two ends of the lead screw (52) are opposite, and the two ends of the guide rod (53) are fixedly connected with the base (1).