Pre-pressing device for preventing lug wings of packaging box from upwarping

Abstract

The utility model discloses a packing box lug wing anti-upwarp pre-pressing device, which relates to the technical field of packing box production and processing, and comprises a fixed frame, a horizontal sliding rod horizontally sliding on the fixed frame and a movable frame vertically sliding on the fixed frame, the movable frame is provided with a plurality of groups of pressing rods for pressing the edge of a packing box lug wing, and the horizontal sliding rod and the movable frame are arranged on the fixed frame. And the bottom of the fixed rack is fixedly connected with multiple sets of placing tables corresponding to the multiple sets of pressing rods, multiple extrusion push rods are hinged to the horizontal sliding rod through pin shafts, and the other end of each extrusion push rod is hinged to the movable frame through a pin shaft. The horizontal sliding rod is controlled to horizontally slide on the fixed machine frame, the movable frame is pushed to descend under the action of the extrusion push rods, the edge of the lug wing of the packaging box placed on the placing table is flattened through the pressing rods, the extrusion push rods respectively provide the same downward pressure for the pressing rods, and therefore the packaging box can be conveniently placed. The packaging box lug wing flattening device is simple in structure and convenient and fast to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging box production and processing, in particular to a pre-pressing device for preventing ears and wings of a packaging box from rising. Background Art

[0002] As the name suggests, a packaging box is a box used to package products. Its function is to ensure the safety of products during transportation and to improve the grade of products. During the processing of paper packaging boxes, the ears on both sides of the packaging box need to be pressed down and folded, and then pasted to the side walls of the box body. However, during the processing, transportation and handling of the packaging box, the edges of the ears of the packaging box are prone to warping up, affecting the packaging effect of the packaging box.

[0003] Chinese patent announcement number CN210062191 U discloses a pre-pressing device for preventing the ear wings of a packaging box from lifting, which includes a frame, a plurality of pressure rods, and a loading plate corresponding to the plurality of pressure rods. The pressure rods are movably connected to the frame, and there is a gap between adjacent pressure rods. The pressure rods are used to press the edge of the ear wings of the packaging box; the loading plate is installed on the frame, and the loading plate has an ear wing bearing area for bearing the packaging box. The pressure rods are arranged opposite to the ear wing bearing area, and a packaging box installation area is formed between adjacent loading plates.

[0004] However, the above device controls the descent of the connecting rod through the cylinders at both ends of the connecting rod, resulting in different downward pressures of the pressing rods at different locations on the connecting rod, thereby affecting the pressing effect on the ear wings of the packaging box; for this reason, we provide a pre-pressing device for preventing the ear wings of the packaging box from lifting up to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to make up for the shortcomings of the prior art and provide a pre-pressing device for preventing the ear wings of a packaging box from curling up. The edges of the ear wings of the packaging box placed on a placing table are flattened by a pressing rod. Multiple extrusion push rods respectively provide the same downward pressure to multiple groups of pressing rods, ensuring that the ear wings of each packaging box can be flattened. The utility model has a simple structure and is easy to operate.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pre-pressing device for preventing the ears and wings of a packaging box from lifting up, comprising a fixed frame, a horizontal sliding bar sliding horizontally on the fixed frame, and a movable frame sliding vertically on the fixed frame, the movable frame is equipped with a plurality of pressing rods for pressing the edges of the ears and wings of the packaging box, the bottom of the fixed frame is fixedly connected with a plurality of placing tables corresponding to the plurality of pressing rods, a plurality of extrusion push rods are hinged on the horizontal sliding bar through a pin shaft, the other end of each of the extrusion push rods is hinged on the movable frame through a pin shaft, a driving mechanism for driving the horizontal sliding bar to slide horizontally is installed on the fixed frame, each of the extrusion push rods is respectively arranged between each group of pressing rods, and a plurality of pressure rollers are fixedly connected to the bottom of the fixed frame.

[0007] Furthermore, a packaging box installation area is formed between each group of the placement tables, and each of the placement tables is provided with an installation groove, through which the ear wings of the packaging box are placed.

[0008] Furthermore, one end of the placement table is arc-shaped, and a drainage hole is opened on the placement table. The accumulated water at the ear wings can be discharged through the drainage hole, thereby reducing the adverse effect of the accumulated water on the ear wings of the packaging box.

[0009] Furthermore, both ends of the movable frame are fixedly connected with connecting sliders, and both sides of the fixed frame are provided with side sliding grooves. The two connecting sliders are respectively slidably connected inside the two side sliding grooves. Through the provided connecting sliders and side sliding grooves, the movable frame can perform stable vertical sliding on the fixed frame.

[0010] Furthermore, a return spring is fixedly connected inside the side slide groove, and the other end of the return spring is fixedly connected to the bottom of the connecting slide block. Through the set return spring, the movable frame can quickly rise and slide due to the elastic force of the return spring when no force is applied.

[0011] Furthermore, the pressing rod is L-shaped, and one end of the pressing rod is fixedly connected to a connecting piece, and the connecting piece is detachably connected to the movable frame by bolts. The pressing rod can be easily disassembled by removing the bolts on the connecting piece.

[0012] Furthermore, the driving mechanism includes a driving cylinder fixed on the fixed frame, the telescopic end of the driving cylinder is fixedly connected to the horizontal sliding rod, and the horizontal sliding rod is controlled to slide horizontally on the fixed frame by starting the driving cylinder.

[0013] Furthermore, a fixed slide rail is fixedly connected to the fixed frame, and the horizontal slide bar is slidably connected inside the fixed slide rail. The fixed slide rail is used to enable the horizontal slide bar to slide horizontally on the fixed frame.

[0014] Compared with the prior art, the pre-pressing device for preventing the ear wings from lifting has the following beneficial effects:

[0015] 1. The utility model controls the horizontal sliding bar to slide horizontally on the fixed frame, and the movable frame is pushed down under the action of the extrusion push rod. The edges of the ear wings of the packaging box placed on the placement table are flattened by the pressing rod. Multiple extrusion push rods respectively provide the same downward force to multiple groups of pressing rods, ensuring that the ear wings of each packaging box can be flattened. The structure is simple and the operation is convenient.

[0016] 2. The utility model starts the driving cylinder to push the horizontal slide bar to slide horizontally on the fixed frame, thereby driving the movable frame to move vertically downward, and flattens the ear wings placed inside the installation groove through the provided pressing rod. When the horizontal slide bar slides in the opposite direction, the provided reset spring enables the movable frame to quickly rise and slide to reset when no force is applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the structure of the movable frame of the utility model;

[0019] Figure 3 This is a three-dimensional diagram of the structure of the placement table of the utility model;

[0020] Figure 4 For this utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0021] Figure 5 It is a three-dimensional diagram of the pressing rod structure of the utility model.

[0022] In the figure: 1. fixed frame; 11. side slide groove; 12. return spring; 2. placement table; 21. installation groove; 22. drainage hole; 3. movable frame; 31. connecting slider; 4. pressing rod; 41. connecting piece; 5. horizontal slide rod; 51. extrusion push rod; 6. pressure roller; 7. driving cylinder; 8. fixed slide rail. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] As described in the background technology, the existing device controls the descent of the connecting rod through the cylinders at both ends of the connecting rod, resulting in different downward pressures of the pressing rods at various locations on the connecting rod, thereby affecting the pressing effect on the ear wings of the packaging box. For this reason, the present embodiment provides a pre-pressing device for preventing the ear wings of the packaging box from curling up. The device flattens the edges of the ear wings of the packaging box placed on the placing table through the pressing rod. Multiple extrusion push rods provide the same downward pressure to multiple groups of pressing rods respectively, thereby ensuring that the ear wings of each packaging box can be flattened. The structure is simple and the operation is convenient.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This embodiment proposes a pre-pressing device for preventing the ears and wings of the packaging box from curling up, including a fixed frame 1, a horizontal sliding bar 5 sliding horizontally on the fixed frame 1 and a movable frame 3 sliding vertically on the fixed frame 1, and multiple groups of pressing rods 4 for pressing the edges of the ears and wings of the packaging box are installed on the movable frame 3. By controlling the movable frame 3 to vertically descend on the fixed frame 1, the ears and wings of the packaging box are flattened by the pressing rods 4 installed on the movable frame 3.

[0026] Please refer again Figure 1 , Figure 2 and Figure 4 , both ends of the movable frame 3 are fixedly connected with connecting sliders 31, and both sides of the fixed frame 1 are provided with side sliding grooves 11. The two connecting sliders 31 are respectively slidably connected to the inside of the two side sliding grooves 11. By setting the connecting sliders 31 and the side sliding grooves 11, the movable frame 3 can stably slide vertically on the fixed frame 1, and the inside of the side sliding grooves 11 is fixedly connected with a return spring 12, and the other end of the return spring 12 is fixedly connected to the bottom of the connecting slider 31. When the movable frame 3 is subjected to force and descends, the return spring 12 is compressed. When the movable frame 3 is not subjected to force, the elastic force of the return spring 12 quickly drives the movable frame 3 to rise and reset.

[0027] Please refer again Figure 1 , Figure 2 and Figure 3 A plurality of groups of placement tables 2 corresponding to the plurality of groups of pressing rods 4 are fixedly connected to the bottom of the fixed frame 1, and a packaging box installation area is formed between each group of placement tables 2, and a mounting groove 21 is provided on each placement table 2. One end of the placement table 2 is in an arc shape, and a drainage hole 22 is provided on the placement table 2. By placing the packaging box between the two placement tables 2, the ear wings of the packaging box are placed inside the mounting groove 21, and the depth of the ear wings ranges from approximately 1.5 mm to 2.5 mm. The ear wings of the packaging box are flattened by lowering the pressing rod 4, and the accumulated water at the ear wings is discharged through the provided drainage holes 22.

[0028] Please refer again Figure 1 , Figure 2 and Figure 5 The pressing rod 4 is L-shaped, and one end of the pressing rod 4 is fixedly connected to a connecting piece 41, and the connecting piece 41 is detachably connected to the movable frame 3 by bolts. The L-shaped pressing rod 4 presses the ear wing of the packaging box through the bottom surface of the pressing rod 4, and the pressing rod 4 can be easily removed from the movable frame 3 by removing the bolts on the connecting piece 41.

[0029] Please refer again Figure 1 and Figure 2, a plurality of extrusion push rods 51 are hinged on the horizontal slide bar 5 through a pin shaft, and the other end of each extrusion push rod 51 is hinged on the movable frame 3 through a pin shaft. A driving mechanism for driving the horizontal slide bar 5 to slide horizontally is installed on the fixed frame 1. The driving mechanism includes a driving cylinder 7 fixed on the fixed frame 1, and the telescopic end of the driving cylinder 7 is fixedly connected to the horizontal slide bar 5. Each extrusion push rod 51 is respectively arranged between each group of pressing rods 4. The horizontal slide bar 5 is pushed to slide horizontally on the fixed frame 1 by starting the driving cylinder 7. Under the extrusion action of the extrusion push rod 51, the movable frame 3 is pushed to slide vertically downward on the fixed frame 1, so that the pressing rod 4 presses the ear wing of the packaging box. Multiple extrusion push rods 51 are respectively arranged between multiple groups of pressing rods 4, thereby ensuring that the downward pressure of each group of pressing rods 4 is the same.

[0030] Please refer again Figure 1 A plurality of pressure rollers 6 are fixedly connected to the bottom of the fixed frame 1, and the pressure rollers 6 are arranged to keep the ear wings of the packaging box stable during the pressing process. A fixed slide rail 8 is fixedly connected to the fixed frame 1, and the horizontal slide bar 5 is slidably connected to the inside of the fixed slide rail 8. The fixed slide rail 8 is arranged to make the horizontal slide bar 5 stably slide horizontally on the fixed frame 1.

[0031] Working principle: place the packaging box between the two placement tables 2, and place the ears and wings of the packaging box inside the two installation grooves 21, and then press the top of the packaging box through the pressure roller 6, and start the driving cylinder 7 to push the horizontal slide bar 5 to slide horizontally between the fixed slide rails 8, and push the movable frame 3 to vertically descend under the action of the squeezing push rod 51, and flatten the ears and wings of the packaging box through the pressing rod 4 installed on the movable frame 3. The flattening is controlled by starting the driving cylinder 7 to control the horizontal slide bar 5 to slide in the direction of the driving cylinder 7, and the rebound of the elastic force of the reset spring 12 quickly drives the movable frame 3 to rise and reset, and multiple squeezing push rods 51 are respectively arranged between multiple groups of pressing rods 4, so as to ensure that the downward pressure of each group of pressing rods 4 is the same.

Claims

1. A pre-pressing device for preventing the ear wings of a packaging box from lifting, comprising a fixed frame (1), a horizontal slide bar (5) sliding horizontally on the fixed frame (1), and a movable frame (3) sliding vertically on the fixed frame (1), characterized in that: The movable frame (3) is provided with a plurality of pressing rods (4) for pressing the edges of the ear wings of the packaging box; the bottom of the fixed frame (1) is fixedly connected with a plurality of placing tables (2) corresponding to the plurality of pressing rods (4); the horizontal sliding bar (5) is hinged with a plurality of extrusion push rods (51) via a pin shaft; the other end of each extrusion push rod (51) is hinged with the movable frame (3) via a pin shaft; the fixed frame (1) is provided with a driving mechanism for driving the horizontal sliding bar (5) to slide horizontally; each extrusion push rod (51) is respectively arranged between each group of pressing rods (4); the bottom of the fixed frame (1) is fixedly connected with a plurality of pressing rollers (6).

2. The pre-pressing device for preventing the ear wings of a packaging box from lifting according to claim 1, characterized in that: A packaging box installation area is formed between each group of the placement platforms (2), and each of the placement platforms (2) is provided with an installation groove (21).

3. The pre-pressing device for preventing the ear wings of a packaging box from lifting according to claim 1, characterized in that: One end of the placement platform (2) is in an arc shape, and a drainage hole (22) is provided on the placement platform (2).

4. The pre-pressing device for preventing the ear flaps of a packaging box from lifting according to claim 1, characterized in that: Both ends of the movable frame (3) are fixedly connected with connecting slide blocks (31), and both sides of the fixed frame (1) are provided with side slide grooves (11), and the two connecting slide blocks (31) are respectively slidably connected inside the two side slide grooves (11).

5. The pre-pressing device for preventing the ear flaps of a packaging box from lifting according to claim 4, characterized in that: A return spring (12) is fixedly connected inside the side sliding groove (11), and the other end of the return spring (12) is fixedly connected to the bottom of the connecting sliding block (31).

6. The pre-pressing device for preventing the ear flaps of a packaging box from lifting according to claim 1, characterized in that: The pressing rod (4) is L-shaped, and one end of the pressing rod (4) is fixedly connected to a connecting piece (41), and the connecting piece (41) is detachably connected to the movable frame (3) via bolts.

7. The pre-pressing device for preventing the ear wings of a packaging box from lifting according to claim 1, characterized in that: The driving mechanism comprises a driving cylinder (7) fixed on a fixed frame (1), and a telescopic end of the driving cylinder (7) is fixedly connected to the horizontal sliding rod (5).

8. The pre-pressing device for preventing the ear wings of a packaging box from lifting according to claim 1, characterized in that: The fixed frame (1) is fixedly connected to a fixed slide rail (8), and the horizontal slide bar (5) is slidably connected inside the fixed slide rail (8).

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