Paperboard bending mechanism

Abstract

The utility model relates to the technical field of bending equipment, and discloses a paperboard bending mechanism which comprises a square-shaped bearing frame, a movable seat is arranged on the lower portion in the bearing frame, a first telescopic device is arranged between the lower surface of the movable seat and the inner bottom of the bearing frame, and a base with a fixed position is arranged above the movable seat. A second telescopic device is fixedly installed at the top in the bearing frame, a pressing plate matched with the base is arranged at the telescopic lower end of the second telescopic device, the base and the pressing plate are both matched with a bottom plate on the paperboard, a plurality of bent plates with angles are arranged on the upper surface of the movable seat, and the bent plates are matched with side plates on the paperboard. And an adjusting unit for adjusting the position of the bent plate is arranged on the moving seat. According to the paperboard bending device, the multiple bending plates bend the four side plates on the paperboard at the same time, and the paperboard bending efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending equipment, in particular to a cardboard bending mechanism. Background Art

[0002] Packaging cartons are a commonly used packaging product. Cartons have the advantages of light weight, low cost, and good protection. Packaging cartons are made of cardboard. In the process of processing cardboard into cartons, a bending mechanism is needed to bend the cardboard and plasticize the cardboard.

[0003] In order to improve the effect of cardboard bending, the prior art has made many improvements to the cardboard bending mechanism. For example, patent publication number CN220517662U discloses a carton cardboard bending device, comprising a workbench, a cardboard pressing mechanism is installed on one side of the workbench, and a cardboard bending mechanism is installed at an edge position of one side of the workbench, a distance adjusting mechanism is provided between the cardboard bending mechanism and the cardboard pressing mechanism, and the cardboard bending mechanism is installed on the cardboard pressing mechanism through the distance adjusting mechanism; the workbench of the utility model is equipped with a cardboard pressing mechanism and a cardboard bending mechanism, wherein the cardboard pressing mechanism can move downward and press the cardboard on the workbench, and the cardboard bending mechanism is staggered with the workbench, and the cardboard bending mechanism can move downward and drive the part of the cardboard extending out of the workbench to bend downward. Through the cooperation of the cardboard pressing mechanism and the cardboard bending mechanism, the folding position of the corrugated cardboard can be made neat, thereby avoiding the problem of affecting use due to uneven folding.

[0004] The above patents have obvious beneficial effects, but still have the following deficiencies in actual operation:

[0005] In the above-mentioned comparative document, the cardboard placed on the workbench is bent by moving the bending plate downward. However, in the existing situation, many cardboards need to be bent on multiple side edges, and in the above-mentioned comparative document, only one edge of the cardboard can be bent each time. If multiple edges of the cardboard need to be bent, the position of the cardboard needs to be adjusted and bent multiple times by the bending plate. As a result, the efficiency of bending the cardboard whose multiple side edges need to be bent is slow. Therefore, there is an urgent need in this field to improve the cardboard bending mechanism to solve the defects of the existing technology. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a cardboard bending mechanism, which can bend four side panels of a cardboard at the same time, thereby improving the efficiency of bending the cardboard.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cardboard bending mechanism, comprising a carrier frame in the shape of a U-shaped carrier frame, a movable seat is provided at the lower inner portion of the carrier frame, a first telescopic device is provided between the lower surface of the movable seat and the inner bottom of the carrier frame, a fixed base is provided above the movable seat, a second telescopic device is fixedly installed at the top of the carrier frame, a pressure plate adapted to the base is provided at the telescopic lower end of the second telescopic device, the base and the pressure plate are both adapted to the bottom plate on the cardboard, a plurality of angled bending plates are provided on the upper surface of the movable seat, the bending plates are adapted to the side plates on the cardboard, and an adjustment unit for adjusting the position of the bending plates is provided on the movable seat.

[0008] Preferably, the adjustment unit includes a sliding block arranged on the lower side of each bending plate, and two cross-shaped sliding grooves are provided on the upper surface of the movable seat and adapted to the sliding block. The two sliding grooves are rotatably connected with a staggered cross-shaped bidirectional screw rod, and one end of the two bidirectional screw rods passes through the movable seat and extends to the outside. The bidirectional screw rods pass through two symmetrical sliding blocks and are threadedly connected to the sliding blocks. When the bidirectional screw rods rotate, they drive the two sliding blocks to move toward or away from each other, and the side surface of one end of the bidirectional screw rod extending to the outside is threadedly connected to a limiting nut.

[0009] Preferably, a plurality of fixed columns penetrating the movable seat are fixedly connected to the inner bottom of the support frame, a support seat is fixedly connected between the upper ends of the plurality of fixed columns, and the base is arranged on the upper surface of the support seat.

[0010] Preferably, a polygonal first plug-in block is fixedly connected to the upper surface of the bearing seat, and a first plug-in slot adapted to the first plug-in block is provided on the lower surface of the base.

[0011] Preferably, the upper portion of each of the bent plates is inclined, and a positioning platform is provided on the side surface of the upper portion of each of the bent plates.

[0012] Preferably, each of the bending plates is fixedly connected to a mounting plate at the bottom, a polygonal limit block is fixedly connected to the lower surface of the mounting plate, a limit groove adapted to the limit block is provided on the upper side of the sliding block, and a first fixing bolt with one end threadedly connected to the bottom of the limit groove is passed through the mounting plate.

[0013] Preferably, a second plug-in block is fixedly connected to the upper surface of the pressure plate, a second plug-in slot adapted to the second plug-in block is opened on the side of the telescopic end of the second telescopic device, and a second fixing bolt with one end threadedly connected to the side of the second plug-in block is passed through the side of the telescopic end of the second telescopic device.

[0014] In view of the shortcomings of the existing technology, the present invention provides a cardboard bending mechanism, which overcomes the shortcomings of the existing technology. The beneficial effects of the present invention are:

[0015] 1. In the utility model, the bottom plate on the cardboard is located on the base, the telescopic lower end of the second telescopic device drives the pressure plate to move downward, and the pressure plate presses the bottom plate of the cardboard tightly against the base, the telescopic upper end of the first telescopic device drives the movable seat to move upward, and the movable seat drives the bending plate to move upward, and the upper inclined part of the bending plate squeezes the side plate of the cardboard to move upward, and the vertical part of the bending plate bends the upper side plate of the cardboard into a right angle, and at the same time bends the four side plates on the cardboard, thereby improving the efficiency of bending the cardboard.

[0016] 2. In the present invention, the sliding block is driven by a bidirectional screw to move in the sliding groove, thereby adjusting the position of the bending plate. Both the base and the pressure plate can be replaced, and cardboards with bottom plates and side plates of different sizes can be bent, thereby improving the applicability of the overall device.

[0017] 3. In the present invention, a positioning platform is provided on the upper portion of each bending plate. When placing the cardboard, the edge of the side plate is placed on the positioning platform, which facilitates the positioning and placement of the cardboard.

[0018] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of the paperboard in the present invention when it is placed on the base;

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the mobile seat in the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the utility model when the base and the bearing seat are separated;

[0024] Figure 5 It is a structural schematic diagram of multiple bent plates in the utility model;

[0025] Figure 6 This is a schematic structural diagram of the sliding block in the present invention;

[0026] Figure 7 for Figure 2 A in the middle is an enlarged structural diagram;

[0027] Figure 8 is Figure 3 The enlarged structural schematic diagram at position B in

[0028] Figure 9 is Figure 6 The enlarged structural schematic diagram at position C in

[0029] In the figure: 1, carrier; 2, moving seat; 3, first telescopic device; 4, base; 5, second telescopic device; 6, pressing plate; 7, bottom plate; 8, side plate; 9, bending plate; 10, adjusting unit; 11, sliding block; 12, sliding groove; 13, bidirectional screw rod; 14, limit nut; 15, fixed column; 16, bearing seat; 17, first plugging block; 18, first plugging groove; 19, positioning table; 20, mounting plate; 21, limit block; 22, limit groove; 23, first fixing bolt; 24, second plugging block; 25, second plugging groove; 26, second fixing bolt. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Embodiment 1

[0032] Please refer to Figures 1-9 , a cardboard bending mechanism, including a carrier 1 in a square shape, a moving seat 2 is provided at the lower part inside the carrier 1, a first telescopic device 3 is provided between the lower surface of the moving seat 2 and the inner bottom of the carrier 1, a base 4 with a fixed position is provided above the moving seat 2, a second telescopic device 5 is fixedly installed at the top inside the carrier 1, a pressing plate 6 adapted to the base 4 is provided at the telescopic lower end of the second telescopic device 5, both the base 4 and the pressing plate 6 are adapted to the bottom plate 7 on the cardboard, a plurality of angled bending plates 9 are provided on the upper surface of the moving seat 2, the bending plates 9 are adapted to the side plates 8 on the cardboard, an adjusting unit 10 for adjusting the position of the bending plates 9 is provided on the moving seat 2, the upper part of each bending plate 9 is inclined, and a positioning table 19 is opened on the side surface of the upper part of each bending plate 9.

[0033] Specific implementation method of this embodiment: When the cardboard needs to be bent, the base 4 and the pressing plate 6 are installed according to the size of the bottom plate 7 and the side plate 8 on the cardboard, and the position of the bending plate 9 is adjusted and fixed by the adjustment unit 10. The upper part of the bending plate 9 is inclined, and the vertical side position of the bending plate 9 is adapted to the side of the base 4. The edge of the side plate 8 on the cardboard is clamped at the position of the positioning platform 19. The positioning platform 19 facilitates the positioning of the cardboard. The bottom plate 7 on the cardboard is located on the base 4. By starting the second telescopic device 5, the telescopic lower end of the second telescopic device 5 drives the pressing plate 6 moves down, the pressing plate 6 presses the upper bottom plate 7 of the cardboard on the base 4, and the first telescopic device 3 is started again. The telescopic upper end of the first telescopic device 3 drives the movable seat 2 to move up, and the movable seat 2 drives the bending plate 9 to move up. The upper inclined portion of the bending plate 9 squeezes the side plate 8 of the cardboard to move up, and the vertical part of the bending plate 9 bends the upper side plate 8 of the cardboard into a right angle. At the same time, the four side plates 8 on the cardboard are bent to improve the efficiency of bending the cardboard. After the upper side plate 8 of the cardboard is bent, the telescopic end of the first telescopic device 3 is controlled to move down, and the telescopic end of the second telescopic device 5 is moved up to take out the bent cardboard.

[0034] Among them, the first telescopic device 3 and the second telescopic device 5 mentioned above can be purchased on the market. They are mature technologies and have been fully disclosed. Therefore, they are not repeated in the specification. The first telescopic device 3 and the second telescopic device 5 are both equipped with power connection lines, and they are electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power lines, or connected to the external hydraulic station through pipelines, and the main controller can be a conventional known device such as a computer that plays a control role.

[0035] Example 2

[0036] See also Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , this embodiment includes the above-mentioned embodiment, wherein the adjustment unit 10 includes a sliding block 11 provided on the lower side of each bending plate 9, and two cross-shaped sliding grooves 12 are provided on the upper surface of the moving seat 2 and adapted to the sliding block 11. The two sliding grooves 12 are rotatably connected with a staggered cross-shaped bidirectional screw rod 13, one end of the two bidirectional screw rods 13 passes through the moving seat 2 and extends to the outside, the bidirectional screw rod 13 passes through the two symmetrical sliding blocks 11 and is threadedly connected to the sliding blocks 11. When the bidirectional screw rod 13 rotates, it drives the two sliding blocks 11 to move toward or away from each other, and the side surface of one end of the bidirectional screw rod 13 extending to the outside is threadedly connected to a limiting nut 14.

[0037] Specific implementation method in this embodiment: the threads on the side of the bidirectional screw rod 13 are symmetrical and opened in opposite directions, and the two bidirectional screw rods 13 are staggered in the two sliding grooves 12. When the position of the bending plate 9 needs to be adjusted, the bidirectional screw rod 13 is rotated. When the bidirectional screw rod 13 rotates, the two sliding blocks 11 are driven to move toward or away from each other in the sliding groove 12. The sliding blocks 11 drive the corresponding bending plates 9 to move toward or away from each other, and then the position of the bending plate 9 can be adjusted. It is suitable for bending cardboard edge plates 8 of different sizes, thereby improving the applicability of the overall bending device. After the position of the bending plate 9 is adjusted, the limit nut 14 is tightened to limit and fix the position of the bidirectional screw rod 13.

[0038] Implementation Three

[0039] See also Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 、 Figure 8 and Figure 9 , this embodiment includes all the above embodiments, wherein, the bottom of the carrier frame 1 is fixedly connected to a plurality of fixing columns 15 that pass through the movable seat 2, and the upper ends of the plurality of fixing columns 15 are fixedly connected to a carrier seat 16, the base 4 is provided on the upper surface of the carrier seat 16, and the upper surface of the carrier seat 16 is fixedly connected to a polygonal first plug-in block 17, and the lower surface of the base 4 is provided with a first plug-in groove 18 adapted to the first plug-in block 17,

[0040] Specific implementation of this embodiment: When the mobile seat 2 moves, it slides along the side of the fixed column 15, and the fixed column 15 is used to support the bearing seat 16. When it is necessary to bend the cardboard of the bottom plate 7 of different sizes, it is necessary to install the adapted base 4 and the pressing plate 6. The pressing plate 6 is inserted into the first plug-in slot 18 through the first plug-in block 17 to install the base 4. The pressing plate 6 is inserted into the second plug-in slot 25 through the second plug-in block 24, and the second fixing bolt 26 is passed through the side of the second telescopic device 5. The second One end of the fixing bolt 26 is threadedly connected to the side surface of the second plug-in block 24 to limit and fix the position of the second plug-in block 24. When the cardboard of the side panels 8 of different sizes needs to be bent, the bending plate 9 needs to be replaced. The limiting block 21 on the mounting plate 20 on the side of the bending plate 9 is inserted into the limiting groove 22. One end of the first fixing bolt 23 passes through the mounting plate 20 and the limiting block 21. The lower end of the first fixing bolt 23 is threadedly connected to the bottom of the limiting groove 22, which is convenient for replacing the base 4, the pressure plate 6 and the bending plate 9.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cardboard bending mechanism, comprising a support frame (1) in the shape of a square, characterized in that: A movable seat (2) is provided at the lower part of the carrier (1), a first telescopic device (3) is provided between the lower surface of the movable seat (2) and the bottom of the carrier (1), a fixed base (4) is provided above the movable seat (2), a second telescopic device (5) is fixedly installed at the top of the carrier (1), a pressing plate (6) adapted to the base (4) is provided at the telescopic lower end of the second telescopic device (5), the base (4) and the pressing plate (6) are both adapted to the bottom plate (7) on the cardboard, a plurality of angled bending plates (9) are provided on the upper surface of the movable seat (2), the bending plates (9) are adapted to the side plates (8) on the cardboard, and an adjusting unit (10) for adjusting the position of the bending plates (9) is provided on the movable seat (2).

2. A cardboard bending mechanism according to claim 1, characterized in that: The adjustment unit (10) includes a sliding block (11) provided on the lower side of each bending plate (9); the upper surface of the movable seat (2) is provided with two sliding grooves (12) in a cross shape and adapted to the sliding block (11); the two sliding grooves (12) are both rotatably connected with a staggered cross-shaped bidirectional screw rod (13); one end of the two bidirectional screw rods (13) passes through the movable seat (2) and extends to the outside; the bidirectional screw rod (13) passes through two symmetrical sliding blocks (11) and is threadedly connected to the sliding blocks (11); when the bidirectional screw rod (13) rotates, it drives the two sliding blocks (11) to move toward or away from each other; the side surface of one end of the bidirectional screw rod (13) extending to the outside is threadedly connected to a limiting nut (14).

3. A cardboard bending mechanism according to claim 1, characterized in that: The inner bottom of the carrier frame (1) is fixedly connected to a plurality of fixed columns (15) that pass through the movable seat (2); a carrier seat (16) is fixedly connected between the upper ends of the plurality of fixed columns (15); and the base (4) is arranged on the upper surface of the carrier seat (16).

4. A cardboard bending mechanism according to claim 3, characterized in that: A polygonal first plug-in block (17) is fixedly connected to the upper surface of the bearing seat (16), and a first plug-in slot (18) adapted to the first plug-in block (17) is provided on the lower surface of the base (4).

5. The cardboard bending mechanism according to claim 1, characterized in that: The upper portion of each bending plate (9) is inclined, and a positioning platform (19) is provided on the side surface of the upper portion of each bending plate (9).

6. A cardboard bending mechanism according to claim 2, characterized in that: Each bending plate (9) is fixedly connected to a mounting plate (20) at its lower portion, a polygonal limiting block (21) is fixedly connected to the lower surface of the mounting plate (20), a limiting groove (22) adapted to the limiting block (21) is provided on the upper side of the sliding block (11), and a first fixing bolt (23) is passed through the mounting plate (20) and is threadedly connected to the bottom of the limiting groove (22).

7. A cardboard bending mechanism according to claim 1, characterized in that: A second plug-in block (24) is fixedly connected to the upper surface of the pressure plate (6); a second plug-in slot (25) adapted to the second plug-in block (24) is provided on the side of the telescopic end of the second telescopic device (5); and a second fixing bolt (26) having one end threadedly connected to the side of the second plug-in block (24) is passed through the side of the telescopic end of the second telescopic device (5).

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