Paper box forming machine suitable for clamping connection of inner folding tongue and box bottom

Abstract

The utility model relates to the field of paper box processing equipment, and discloses a paper box forming machine suitable for clamping an infolding tongue and a box bottom, which comprises a rack, and a pre-forming mechanism and an infolding tongue fixing mechanism are arranged on the rack. The pre-forming mechanism is provided with a first machining platform used for bearing a box body after the box body is subjected to pre-pressing forming. The pre-forming mechanism comprises a lifting mold and an upward inserting mechanism; the upward-inserting mechanisms are correspondingly arranged on the left side and the right side of the first machining platform. Each upward-inserting mechanism comprises a first inserting plate for upturning the front side plate and the rear side plate and a second inserting plate for upturning the left side plate and the right side plate. The infolding tongue fixing mechanism comprises a second machining platform used for bearing the paper box when the infolding tongue is fixed, the infolding tongue fixing mechanism downwards turns the infolding tongue through left-right movement, and the tongue folding piece enables the bottom end of the infolding tongue to be clamped in an open groove preset between the bottom of the paper box and the left side plate and the right side plate. By means of linkage of the lifting die, the inserting plate and the tongue folding piece, the inward folding tongue can be clamped into the clamping groove at a time, and the traditional corner hitting and attaching procedure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of paper box processing equipment, and in particular to a paper box forming machine suitable for the interlocking of the inner flap and the bottom of the box. Background Technology

[0002] Paper boxes, as a common form of packaging, are widely used in various industries. In existing technologies, the forming process of paper boxes requires first bending the corners of the paper blank to form a box blank, and then positioning and bonding it with the facing paper. This results in material waste, low production efficiency, and unattractive products. There are also paper box types with an inner folding flap that snaps into the bottom. These typically require manual or semi-automatic forming, leading to low automation, poor product aesthetics, and low work efficiency. Furthermore, for box types with different heights on the left and right sides, folding is impossible due to the inability to adjust the height; folding can only be achieved by adjusting the height of the left and right sides. Therefore, there is an urgent need for a paper box forming machine that automates the forming of paper boxes with an inner folding flap that snaps into the bottom, further solving the problem of forming boxes with different heights on the left and right sides. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a paper box forming machine suitable for the interlocking of the inner flap and the bottom of the box.

[0004] To solve the above-mentioned technical problems, this utility model achieves its solution through the following technical solution:

[0005] A paper box forming machine suitable for the interlocking of the inner flap and the bottom of the box includes a frame, on which a pre-forming mechanism and an inner flap fixing mechanism are mounted. The pre-forming mechanism has a first processing platform for supporting the box body after pre-compression forming; the pre-forming mechanism includes a lifting mold and an upper insertion mechanism. The lifting mold is located above the first processing platform; the upper insertion mechanism is correspondingly located on the left and right sides of the first processing platform, and includes a first insertion plate that flips up the front and rear side plates and a second insertion plate that flips up the left and right side plates;

[0006] The inner folding tongue fixing mechanism includes a second processing platform for carrying the cardboard box during inner folding tongue fixing; the inner folding tongue fixing mechanism includes

[0007] The flap is connected to a power source that drives its lifting and lowering movement. The flap extends obliquely downwards and outwards. An inner flap fixing mechanism folds the inner flap downwards through left-right movement. The power source driving the flap's left-right movement causes the bottom end of the inner flap to engage in a pre-set slot between the bottom of the cardboard box and the left and right side panels. For this type of box, the slot secures the end of the inner flap, preventing the cardboard box from loosening after forming and making it more robust. Through the coordinated action of the lifting mold, insert plate, and flap, the inner flap is inserted into the slot in one step, avoiding the traditional corner-punching and bonding process.

[0008] The preforming mechanism and the inner folding tongue fixing mechanism are connected by a carton conveying mechanism. The first processing platform and the second processing platform may be the same platform or different platforms. The first processing platform and the second processing platform are set on the frame, on the frame body, or on the carton conveying mechanism. The preforming of the first processing platform and the precise inner folding of the second processing platform are separated, simplifying the process and realizing assembly line operation to increase processing efficiency.

[0009] Preferably, the inner folding tongue fixing mechanism also includes an inner push plate, which extends inward. The inner push plate is integrally or separately set with the folding tongue. The inner push plate is used to push the inner folding tongue inward and fold it down in the left and right directions.

[0010] Preferably, the inner flap fixing mechanism includes a mounting base with lifting guide rails. When forming cardboard boxes with high and low side panels, the lifting guide rails on the left and right sides are at different heights. By using mounting bases of varying heights and a liftable flap, it is possible to adapt to the forming of cardboard boxes of different specifications, improving production flexibility.

[0011] Preferably, the lifting guide rail is provided with a sliding seat connected to a lifting power source, the folding tongue is connected to the sliding seat, and the mounting seat is slidably mounted on the sliding guide rail extending in the left and right direction and connected to the power source that drives its inward and outward movement.

[0012] Preferably, the lifting power source is a synchronous pulley arranged vertically, with a synchronous belt fitted on the synchronous pulley and a sliding seat mounted on the synchronous belt.

[0013] Preferably, the upper insertion mechanism includes a base, which is connected to a sliding power source that causes the two sides to move towards each other and away from each other. The base is mounted on left and right slide rails via the sliding power source.

[0014] Preferably, the top height of the first insert plate is higher than the top height of the second insert plate. This causes the front and rear side plates to fold up before the left and right side plates, so that the left and right side plates cover the inner side plates.

[0015] Preferably, the frame is equipped with front and rear guide rails, and the carton conveying mechanism is connected and slidably mounted on the front and rear guide rails.

[0016] Preferably, the front and rear guide rails are located below the first and second processing platforms, and the paper box conveying mechanism is provided with stops at the front and rear to limit the movement of the paper box.

[0017] Preferably, the device also includes a feeding mechanism for feeding the blank to the upper insertion mechanism, the feeding mechanism including a feeding frame that can move back and forth and be raised and lowered, the feeding frame being provided with a suction nozzle.

[0018] This utility model, by adopting the above technical solution, has significant technical effects:

[0019] Automated molding is achieved by setting up two processing platforms. The first processing platform pre-forms the box body by pressing down the upper mold and cooperating with the lower first insert plate. The second processing platform folds the inner fold tongue inward to the inside of the inner side plate and locks it into the slot by setting up a slot and a folding tongue. The molding process is completed in one step without manual operation, which improves production efficiency. It is simple to operate, highly automated, has high production efficiency, and produces products with good appearance.

[0020] In addition, the present invention optimizes the structure of the second processing platform. By setting mounting seats of different heights, the initial height of the inner push plate or the folding tongue (21) is different when the folding tongue is pushed inward. This can adapt to the forming of paper boxes of different specifications. It can also be applied to high and low side plate boxes with trapezoidal front and rear side plates, which improves production flexibility and applicability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a side view of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal folding tongue fixing mechanism;

[0025] Figure 5 This is a schematic diagram of the paper box forming process of this utility model.

[0026] The parts referred to by the numbers in the above attached figures are as follows: 1. Pre-forming mechanism; 11. Lifting mold; 12. Upper insertion mechanism; 121. First insertion plate; 122. Second insertion plate; 123. Base; 124. Left and right slide rails; 2. Inner folding tongue fixing mechanism; 21. Folding tongue; 22. Inner push plate; 23. Mounting seat; 24. Lifting guide rail; 25. Sliding seat; 26. Synchronous pulley; 27. Sliding guide rail; 3. Paper box conveying mechanism; 31. Stop block; 4. Frame; 41. Front and rear guide rails; 5. Feeding mechanism; 51. Feeding rack. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] A type of cardboard box forming machine suitable for the interlocking of the inner flap and the bottom of the box, such as Figure 1-2As shown, the device includes a frame 4, on which a preforming mechanism 1 and an inner flap fixing mechanism 2 are mounted. The preforming mechanism 1 has a first processing platform for supporting the box body after pre-compression forming; the preforming mechanism 1 includes a lifting mold 11 and an upper insertion mechanism 12. The lifting mold 11 is located above the first processing platform; the upper insertion mechanism 12 is correspondingly located on the left and right sides of the first processing platform, and the upper insertion mechanism 12 includes a first insertion plate 121 that flips up the front and rear side plates and a second insertion plate 122 that flips up the left and right side plates;

[0030] The inner fold tongue fixing mechanism 2 includes a second processing platform for supporting the cardboard box when fixing the inner fold tongue. The inner fold tongue fixing mechanism 2 includes a fold tongue component 21, which is connected to a power source that drives its lifting and lowering movement. The fold tongue component 21 extends obliquely downwards and outwards. The inner fold tongue fixing mechanism 2 folds the inner fold tongue downwards through left and right movements. The power source driving the left and right movements of the fold tongue component 21 causes the bottom end of the inner fold tongue to be engaged in a pre-set slot between the bottom of the cardboard box and the left and right side panels. The fold tongue component 21 can push the inner fold tongue inwards on its own, but this requires high dimensional and stroke control. Alternatively, it can be pushed inwards with the help of an inner push plate 22, which provides better results.

[0031] like Figure 3 As shown, the preforming mechanism 1 and the inner folding tongue fixing mechanism 2 are connected by the carton conveying mechanism 3. The first processing platform and the second processing platform are the same platform or different platforms. The first processing platform and the second processing platform are set on the frame 4 or on the body of the frame 4 or on the carton conveying mechanism 3.

[0032] like Figure 4 As shown, the inner folding tongue fixing mechanism 2 also includes an inner push plate 22, which extends inward. The inner push plate 22 is integrally or separately disposed with the folding tongue component 21. The inner push plate 22 is used to push the inner folding tongue inward and fold it down in the left and right directions.

[0033] The inner folding tongue fixing mechanism 2 includes a mounting base 23, a lifting guide rail 24 is provided on the mounting base 23, a sliding seat 25 connected to a lifting power source is provided on the lifting guide rail 24, the folding tongue 21 is connected to the sliding seat 25, and the mounting base 23 is slidably mounted on the sliding guide rail 27 extending in the left and right direction and connected to the power source that drives its inward and outward movement.

[0034] When forming the card box for the high and low side panels, the lifting guide rails 24 on the left and right sides are at different heights.

[0035] The lifting power source is a synchronous pulley 26 set at the top and bottom, a synchronous belt is fitted on the synchronous pulley 26, and a sliding seat 25 is set on the synchronous belt.

[0036] The upper insertion mechanism 12 includes a base 123, which is connected to a sliding power source that causes the two sides to move towards each other and away from each other. The base 123 is mounted on the left and right slide rails 124 via the sliding power source.

[0037] The top height of the first insert plate 121 is higher than the top height of the second insert plate 122.

[0038] In one embodiment, the paper box conveying mechanism 3 can be implemented by suction from above using a nozzle. In another embodiment, the paper box conveying mechanism 3 can be implemented by supporting and conveying the paper box from below. The paper box conveying mechanism 3 can be implemented by using conveyor belts or conveyor chains on both sides of the frame in conjunction with push blocks. In yet another embodiment, the paper box conveying mechanism 3 frame 4 is provided with front and rear guide rails 41, and the paper box conveying mechanism 3 is slidably mounted on the front and rear guide rails 41. The front and rear guide rails 41 are located below the first and second processing platforms, and the paper box conveying mechanism 3 is provided with stops 31 at the front and rear to limit the forward and backward movement of the paper box. In this method, the paper box can be supported by the paper box conveying mechanism 3, by the pallets provided on both sides of the frame, or by the two sides of the frame body.

[0039] It also includes a feeding mechanism 5 for feeding the blank to the upper insertion mechanism 12. The feeding mechanism 5 includes a feeding frame 51 that can move back and forth and be raised and lowered. The feeding frame 51 is provided with a suction nozzle.

[0040] like Figure 5 As shown, the process flow of this utility model is as follows:

[0041] S1: The cardboard blank with the preset crease is fed from the hopper to the top of the upper insertion mechanism 12 by the suction nozzle of the feeding mechanism 5, and is kept in contact with the highest point of the upper insertion mechanism 12 or in a state of being just above without contact.

[0042] S2: The lifting mold 11 descends and presses down the middle of the blank. Through the combined action of the upper lifting mold 11 pressing down and the lower first insert plate 121, the front and rear side panels are flipped up. At this time, the inner side panels extending in the front, rear, left and right are driven to fold inward at a small angle or ninety degrees. Through the combined action of the upper lifting mold 11 pressing down and the lower second insert plate 122, the left and right side panels are flipped up and wrapped around the inner side panels. The inner folding tongues extending outward of the left and right side panels are raised upward to form a pre-formed cardboard box, which is supported by the first processing platform.

[0043] S3: The pre-formed cardboard box is conveyed to the second processing platform by the cardboard box conveying mechanism 3. The inner folding tongue is pushed inward by the inner push plates 22 on both sides of the second processing platform so that it folds down to the inside of the inner side plate. Then the folding tongue 21 moves outward in the left and right directions. Under the action of the folding tongue 21, the inner folding tongue is inserted into the slot between the side plate and the bottom surface. Preferably, the lifting guide rails (24) on the left and right sides are at different heights, so that the initial inner push plate 22 pushes the inner folding tongue inward at different heights, which can adapt to cardboard boxes of different sizes. It can also be used for cardboard box forming with trapezoidal side plates of different heights.

[0044] The inner push plate 22 and the folding tongue 21 can be integrally formed or separately provided. The power source for left and right movement can be the same or different power sources, and the power source for lifting and lowering movement can also be the same or different power sources. In this embodiment, the inner push plate 22 and the folding tongue 21 are separately provided, and the power source for left and right movement and the power source for lifting and lowering movement are the same power source. When the inner folding tongue fixing mechanism 2 folds the inner tongue, it first moves inward left and right, then descends, and then moves outward left and right to complete the folding.

[0045] The power source of this utility model can be an electric motor, a cylinder, or a conventional power device for those skilled in the art, such as a cylinder swing arm, a motor swing arm, a motor synchronous pulley, a motor lead screw, or a motor cam.

[0046] In the description of this utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "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 this utility model and simplifying the description, and 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 this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A carton forming machine suitable for the inwardly folding of a tongue and the latching of the carton base, characterised in that: The preforming mechanism (1) is provided with a first machining platform for bearing the box after pre-press forming. The preforming mechanism (1) is provided with a first machining platform for bearing the box after pre-press forming. The lifting mold (11) is arranged above the first machining platform. The upper inserting mechanism (12) is correspondingly arranged on the left and right sides of the first machining platform. The inner tongue fixing mechanism (2) comprises a second machining platform for bearing the paper box during the fixing of the inner tongue. The preforming mechanism (1) and the inner tongue fixing mechanism (2) are connected through the paper box conveying mechanism (3). The inner tongue fixing mechanism (2) further comprises an inner push plate (22) extending towards the inner side.

2. A carton forming machine suitable for use in the carton bottom and tongue engagement according to claim 1, characterized in that: The inner tongue fixing mechanism (2) comprises a mounting seat (23) provided with lifting rails (24).

3. The carton forming machine suitable for the engagement of the inner folded tongue with the bottom of the carton according to claim 1 or 2, characterized in that: The lifting rails (24) on the lifting rails (24) are connected with the sliding seat (25), and the mounting seat (23) is slidingly arranged on the sliding rails (27) extending in the left-right direction and connected with the power source for driving the sliding seat (23) to move inwards and outwards.

4. A carton forming machine suitable for use in the carton bottom and tongue engagement according to claim 3, characterized in that: The lifting power source is a synchronous wheel (26) arranged vertically, and the synchronous wheel (26) is sleeved with a synchronous belt.

5. A carton forming machine suitable for use in the carton bottom and tongue engagement according to claim 4, characterized in that: The upper inserting mechanism (12) comprises a base (123) connected with a sliding power source for driving the base (123) to move towards each other and away from each other.

6. A carton forming machine suitable for carton bottom and tongue interlocking according to claim 1, characterized in that: The top of the first inserting plate (121) is higher than the top of the second inserting plate (122).

7. A carton forming machine suitable for the inner tongue and base catch of claim 1, wherein: The preforming mechanism (1) is provided with a first machining platform for bearing the box after pre-press forming.

8. A carton forming machine suitable for the folding of a gusset and the latching of a carton base according to claim 1, wherein: The preforming mechanism (1) is provided with a first machining platform for bearing the box after pre-press forming.

9. A carton forming machine suitable for use in the carton bottom and tongue engagement according to claim 8, characterized in that: ​ 10. A carton forming machine suitable for the inner tongue and base catch of claim 1, wherein: ​

Images