Bottom folding mechanism of packaging box bottom folding machine

Abstract

The utility model relates to a bottom folding mechanism of a packaging box bottom folding machine, which comprises a bearing mechanism, a bottom folding mechanism and a bottom folding mechanism, and the bottom folding mechanism at least comprises two groups of bottom folding plates which are symmetrically arranged below the supporting flat plate and are matched with the supporting flat plate, and driving units which are connected with the bottom folding plates in a one-to-one correspondence manner and are used for driving the bottom folding plates to swing. The bottom of the packaging box placed on the bearing mechanism can be folded, then the packaging box is conveyed to the subsequent working procedure to be packaged, and the processing efficiency of the bottom structure of the packaging box can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging equipment and relates to a bottom folding mechanism, in particular to a bottom folding mechanism of a packaging box bottom folding machine. Background Art

[0002] With the rapid development of modern industry and the continuous improvement of people's living standards, people's demand for packaging boxes (the packaged box body is in a cubic shape) will continue to increase. In the process of using packaging boxes to pack goods, it is usually done manually, which mainly depends on personal experience, resulting in low docking accuracy of the packaging boxes and poor packaging efficiency.

[0003] The Chinese utility model patent with the authorization announcement number CN218985932U discloses a double-station paper bag bottom folding device, including a device platform, and also including: a first fixed plate and a second fixed plate, which are detachably arranged at the top of the front side of the device platform; a bottom folding mechanism, which is movable between the first fixed plate and the second fixed plate, and can be moved between the double stations, so that the staff at the double stations can adjust the position of the bottom folding mechanism according to the needs. This application drives the moving block to drive the pressure plate to move by the threaded rod, so that the bottom folding mechanism can be freely adjusted and moved between the two stations to realize the double-station bottom folding operation, and because the first damping bearing and the rotating rod are arranged on the protruding member, the angle of the pressure plate can be freely adjusted, thereby realizing the paper bag bottom folding operation at different positions and angles. This application is mainly aimed at the bottom folding operation of paper bags, and is not suitable for packaging boxes, so it is necessary to develop a bottom folding device suitable for packaging boxes. Summary of the invention

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a bottom folding mechanism for a packaging box bottom folding machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bottom folding mechanism of a packaging box bottom folding machine, which comprises:

[0006] A carrying mechanism, the carrying mechanism at least comprising a supporting plate for placing the packaging box;

[0007] The bottom folding mechanism comprises at least two groups of bottom folding plates symmetrically arranged below the supporting plate and matched therewith, and a driving unit connected to the bottom folding plates one by one to drive them to swing.

[0008] Optimally, the bearing mechanism further comprises a vertically arranged supporting transverse plate and bottom-resisting rollers installed at the ends of both side surfaces of the supporting transverse plate and cooperating with the bottom folding mechanism, and the supporting flat plate is fixed on the supporting transverse plate and is perpendicular thereto.

[0009] Furthermore, the bearing mechanism further comprises a first supporting plate and a second supporting plate, the supporting flat plate is installed on the top of the first supporting plate and the second supporting plate, and the supporting cross plate is installed between the first supporting plate and the second supporting plate.

[0010] Optimally, the driving unit includes a mounting base, a raising module fixed on the mounting base, two third pivots rotatably mounted on the raising module via a plurality of bearing seats, and two folding bottom swing arms, one end of which is connected to the end of the third pivot and the other end of which is connected to the folding bottom plate.

[0011] Furthermore, the driving unit also includes a fixed base fixed on the mounting base, a second cylinder pivotally connected to the fixed base at one end, a fourth pivot installed in the middle of the folding bottom swing arm and perpendicular to it, and a second connecting rod rotatably installed at the free end of the fourth pivot and connected to the second cylinder.

[0012] Compared with the prior art, the advantages of the present invention are: the bottom folding mechanism of the packaging box bottom folding machine of the present invention, through the cooperation of the supporting mechanism and the bottom folding mechanism, can fold the bottom of the packaging box placed on the supporting mechanism, and then transport it to the subsequent process for packaging and packaging, which is beneficial to improving the processing efficiency of the bottom structure of the packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the bottom folding mechanism of the packaging box bottom folding machine of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the bottom folding mechanism of the packaging box bottom folding machine of the utility model from another perspective. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0016] like Figure 1 and Figure 2 The bottom folding mechanism of the packaging box bottom folding machine shown mainly includes a supporting mechanism 2 and a bottom folding mechanism 4 and other structures that cooperate with each other.

[0017] The bearing mechanism 2 is usually installed on a conventional support assembly 1. Specifically, the support assembly 1 may include a support top frame 11, a support bottom frame 12, a support bottom frame 13 and rollers 14. The support bottom frame 13 is arranged below the support top frame 11; there are multiple groups of support vertical frames 12 (2 to 4 groups can be selected as needed), which are installed between the support top frame 11 and the support bottom frame 13 in a conventional manner; there are multiple rollers 14 (2 to 4 can be selected as needed), which are installed at the bottom of the support bottom frame 13. In addition, a box plate can be installed on the outer surface of the support vertical frame 12, so that the support assembly 1 becomes a box structure with an open top.

[0018] The bearing mechanism 2 at least includes a supporting plate 23 installed on the supporting assembly 1 for placing the packaging box. It should be noted that the width of the supporting plate 23 should be smaller than the width of the packaging box, so as to ensure that the two pieces of paper to be folded at the bottom of the packaging box extend downward through the two sides of the supporting plate 23. At this time, the main structure of the packaging box is supported on the supporting plate 23. The movement of the packaging box on the supporting plate 23 can be manually operated, or it can be achieved by designing a corresponding pushing mechanism. In this embodiment, the bearing mechanism 2 also includes a supporting cross plate 24 installed on the supporting assembly 1 and vertically arranged, and bottom-resisting rollers 25 installed on the two side ends of the supporting cross plate 24 and cooperating with the bottom folding mechanism 4 (the upstream and downstream are defined according to the moving direction of the packaging box. At this time, the bottom-resisting rollers 25 are located as a whole downstream of the supporting cross plate 24, and are used to resist the packaging box with the bottom folded; that is Figure 1 In the figure, the packaging box moves from left to right), the support plate 23 is fixed on the support transverse plate 24 and is perpendicular thereto; specifically, the support transverse plate 24 and the support plate 23 extend in the same direction but are perpendicular to each other.

[0019] In this embodiment, the bearing mechanism 2 further includes a first support plate 21 and a second support plate 22 fixed between the supporting top frame 11 and the supporting bottom frame 13 (in this embodiment, due to Figure 1A supporting cross bar is installed in the middle of the supporting vertical frame 12 located on the left side, so that the length of the first support plate 21 is greater than that of the second support plate 22. Therefore, the second support plate 22 is installed between the supporting cross bar and the supporting top frame 11, and the first support plate 21 is installed between the supporting top frame 11 and the supporting bottom frame 13). At this time, the supporting cross plate 24 is installed between the first support plate 21 and the second support plate 22, and the supporting flat plate 23 is installed on the top of the first support plate 21 and the second support plate 22. This can effectively improve the stability of the combination between the first support plate 21, the second support plate 22, the supporting flat plate 23 and the supporting cross plate 24. In this embodiment, a guide structure can be installed upstream of the supporting flat plate 23 to improve the accuracy of the placement of the packaging box and avoid interference with other structures at the bottom of the packaging box; specifically, the guide structure at least includes a support plate fixed on the supporting flat plate 23 and a guide plate (the lower part of the guide plate is vertically arranged) installed on the support plate and partially extending downwardly (towards the bottom roller 25), and the guide plate is perpendicular to the support plate (such as Figure 2 shown).

[0020] The bottom folding mechanism 4 at least includes two groups of bottom folding plates 44 symmetrically arranged below the support plate 23 and matched therewith, and a driving unit connected to the bottom folding plates 44 in a one-to-one correspondence to drive the bottom folding plates 44 to swing. The driving unit drives the bottom folding plates 44 to move toward each other, thereby realizing the folding of the bottom of the packaging box. Specifically, the driving unit includes a mounting base 41 fixed on the support bottom frame 13, a padding module 42 fixed on the mounting base 41, two third pivots 46 rotatably mounted on the padding module 42 through a plurality of bearing seats 45 (two in this embodiment), and two bottom folding swing rods 43 connected at one end to the end of the third pivot 46 and at the other end to the bottom folding plate 44. In addition, the driving unit also includes a fixing seat 47 fixed on the mounting base 41, a second cylinder 40 pivotally connected at one end to the fixing seat 47, a fourth pivot 48 mounted in the middle of the bottom folding swing rod 43 and perpendicular to it, and a second connecting rod 49 rotatably mounted at the free end of the fourth pivot 48 and connected to the second cylinder 40. In this embodiment, when the second cylinder 40 is working, it will slightly rotate relative to the fixed seat 47, and at the same time, the second cylinder 40 will pull the fourth pivot 48 to move inward, thereby driving the swing rod 43 to move inward to achieve the folding of the bottom of the packaging box; then the manual or mechanical structure drives the packaging box to move downstream, so that the bottom of the folded packaging box is abutted by the bottom-abutting roller 25, and then the second cylinder 40 drives the aforementioned structure to reset. In this embodiment, the two second cylinders 40 extend obliquely toward each other, and the angle formed between them is an obtuse angle, so as to further improve the stability of the folded bottom of the packaging box.

[0021] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A bottom folding mechanism of a packaging box bottom folding machine, characterized in that it include: A carrying mechanism (2), the carrying mechanism (2) comprising at least a supporting plate (23) for placing the packaging box; A bottom folding mechanism (4), the bottom folding mechanism (4) comprising at least two groups of bottom folding plates (44) symmetrically arranged below the supporting plate (23) and matched therewith, and a driving unit connected one-to-one with the bottom folding plates (44) for driving the bottom folding plates (44) to swing.

2. The bottom folding mechanism of the packaging box bottom folding machine according to claim 1, characterized in that: The bearing mechanism (2) further comprises a vertically arranged supporting transverse plate (24) and bottom-stopping rollers (25) mounted on the two side ends of the supporting transverse plate (24) and cooperating with the bottom-folding mechanism (4); the supporting flat plate (23) is fixed on the supporting transverse plate (24) and is perpendicular thereto.

3. The bottom folding mechanism of the packaging box bottom folding machine according to claim 2, characterized in that: The bearing mechanism (2) further comprises a first supporting plate (21) and a second supporting plate (22), the supporting flat plate (23) being mounted on the top of the first supporting plate (21) and the second supporting plate (22), and the supporting transverse plate (24) being mounted between the first supporting plate (21) and the second supporting plate (22).

4. The bottom folding mechanism of the packaging box bottom folding machine according to claim 1, characterized in that: The driving unit comprises a mounting base (41), a padding module (42) fixed on the mounting base (41), two third pivots (46) rotatably mounted on the padding module (42) via a plurality of bearing seats (45), and two folding bottom swing arms (43) one end of which is connected to the end of the third pivots (46) and the other end of which is connected to the folding bottom plate (44).

5. The bottom folding mechanism of the packaging box bottom folding machine according to claim 4, characterized in that: The driving unit further comprises a fixing seat (47) fixed on the mounting base (41), a second cylinder (40) having one end pivotally connected to the fixing seat (47), a fourth pivot (48) mounted in the middle of the folding bottom swing arm (43) and perpendicular thereto, and a second connecting rod (49) rotatably mounted on the free end of the fourth pivot (48) and connected to the second cylinder (40).

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