Carton paperboard bending mechanism

Abstract

The utility model discloses a carton paperboard bending mechanism which comprises a lower bending base and an upper bending base, a first transverse supporting plate and a second transverse supporting plate are arranged in the two ends of the lower bending base in an opposite sliding mode through a gear and rack transmission set, one end of the first transverse supporting plate and one end of the second transverse supporting plate are each provided with a lower bending plate, and a first air cylinder is arranged on the upper side of the upper bending base. Two sliding blocks are arranged on the lower side of the upper bending base in an opposite sliding mode through lead screws, upper clamping plates are arranged on the lower sides of the two sliding blocks through lower supports, lower clamping plates are arranged on the lower sides of the upper clamping plates through second air cylinders, and carton paperboards are clamped and fixed between the two sets of upper clamping plates and the two sets of lower clamping plates. The lower clamping plates are arranged on the lower sides of the upper clamping plates through the second air cylinders, the carton paperboard is clamped and fixed between the two sets of upper clamping plates and the two sets of lower clamping plates, the clamping and fixing stability is high, and the bending precision of the carton paperboard can be improved easily.

Description

Technical Field

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

[0002] Corrugated cartons are the most widely used packaging products. At present, corrugated cardboard is mainly folded into corrugated cartons manually. Although indentations are made on the corrugated cardboard during production to facilitate manual folding, the folding is still not neat during the folding process, resulting in the problem that the formed corrugated cartons are crooked and affect the use.

[0003] In the prior art, a cardboard bending device for cartons with the application number 202322157656.1 includes a workbench. One side of the workbench is equipped with a cardboard pressing mechanism, and one side edge position of the workbench is equipped with a cardboard bending mechanism. A distance adjusting mechanism is arranged 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; a cardboard pressing mechanism and a cardboard bending mechanism are installed on the workbench of this utility model. Among them, the cardboard pressing mechanism can move downward and press the cardboard on the workbench, and the cardboard bending mechanism is arranged in a dislocation manner with the workbench. 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, thus avoiding the problem that the use is affected due to uneven folding. However, the stability of clamping and fixing the cardboard of the carton is low, thus affecting the precision of bending the cardboard of the carton. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cardboard bending mechanism for cartons to solve the problem that in the prior art, the stability of clamping and fixing the cardboard of the carton is low, thus affecting the precision of bending the cardboard of the carton.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A cardboard bending mechanism for cartons includes a lower bending seat and an upper bending seat. Inside both ends of the lower bending seat, a first transverse support plate and a second transverse support plate are slidably arranged towards each other through a gear-rack transmission group. One end of each of the first transverse support plate and the second transverse support plate is provided with a lower bending plate. A first air cylinder is arranged on the upper side of the upper bending seat, and two sliders are slidably arranged towards each other through a lead screw on the lower side of the upper bending seat. Lower clamping plates are arranged on the lower sides of the two sliders through lower brackets. A lower clamping plate is arranged on the lower side of the upper clamping plate through a second air cylinder, and the cardboard of the carton is clamped and fixed between two groups of upper clamping plates and lower clamping plates.

[0006] Furthermore, two groups of lower bending plates are symmetrically arranged with respect to the lower bending seat, and rollers are arranged on the upper sides of the lower bending plates through connecting seats.

[0007] Further, the outer diameter of the roller is equal to the width of the lower bending plate, and the length of the roller is less than the length of the lower bending plate.

[0008] Further, the gear-rack transmission group includes a driving gear rotatably arranged in the middle of the lower bending seat through a connecting shaft. Driven tooth grooves are provided on one side of the first transverse support plate and the second transverse support plate, and both driven tooth grooves are meshed and connected with the driving gear. One end of the connecting shaft is drivingly connected with a motor through a gear set.

[0009] Further, guiding sliding holes are formed in two side walls of the lower bending seat, and the first transverse support plate and the second transverse support plate are both slidably inserted into the guiding sliding holes.

[0010] Further, the lower support and the upper clamping plate are integrally formed into an L-shaped support, and the distance between the two upper clamping plates is less than the distance between the two lower bending plates.

[0011] Further, the upper clamping plate and the lower clamping plate are arranged in parallel, and protective layers are provided on one side of the upper clamping plate and the lower clamping plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, an upper clamping plate is provided at the lower end of the lower support, and a lower clamping plate is provided under the upper clamping plate through a second air cylinder, so that the cardboard of the carton can be clamped and fixed between two groups of upper clamping plates and lower clamping plates for positioning. The stability of clamping and fixing the cardboard of the carton is relatively high, which is beneficial to improving the bending precision of the cardboard of the carton.

[0014] 2. In the present utility model, a first air cylinder is provided on the upper side of the upper bending seat, and two sliders are slidably arranged towards each other under the upper bending seat through a lead screw. Upper clamping plates are provided under the two sliders through a lower support, so that the two sliders are driven to move towards each other through the lead screw for adjustment, thereby the lower support can be driven to move and adjust, and further the distance between the two upper clamping plates can be adjusted, which can meet the bending treatment after positioning of carton cardboard with different widths, and the bending efficiency is relatively high.

[0015] 3. In the present utility model, a first transverse support plate and a second transverse support plate are slidably arranged towards each other at both ends inside the lower bending seat through a gear-rack transmission group. Lower bending plates are provided at one end of the first transverse support plate and the second transverse support plate, so that the first transverse support plate and the second transverse support plate are driven to move towards each other through the gear-rack transmission group for adjustment, thereby the distance between the two lower bending plates can be adjusted. The transmission stability is relatively high, and the adjustment is convenient and fast. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 This is the front view of the overall structure of the present utility model;

[0018] Figure 2 This is the schematic structural view of the lower bending seat of the present utility model;

[0019] Figure 3 This is the schematic structural view of the lower bracket of the present utility model.

[0020] In the figure: 1. Lower bending seat; 2. First transverse support plate; 3. Lower bending plate; 4. Second transverse support plate; 5. Connecting seat; 6. Roller; 7. Upper bending seat; 8. First cylinder; 9. Lead screw; 10. Slide block; 11. Lower bracket; 12. Lower clamping plate; 13. Second cylinder; 14. Upper clamping plate; 15. Driven tooth groove; 16. Connecting shaft; 17. Driving gear; 18. Guide sliding hole; 19. Gear set; 20. Motor. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 In the embodiments of the present utility model, a carton cardboard bending mechanism includes a lower bending seat 1 and an upper bending seat 7. Inside both ends of the lower bending seat 1, a first transverse support plate 2 and a second transverse support plate 4 are slidably arranged towards each other through a gear-rack transmission group. At one end of both the first transverse support plate 2 and the second transverse support plate 4, there is a lower bending plate 3. The gear-rack transmission group includes a driving gear 17 rotatably arranged in the middle of the lower bending seat 1 through a connecting shaft 16. On one side of both the first transverse support plate 2 and the second transverse support plate 4, there is a driven tooth groove 15, and both driven tooth grooves 15 are meshed and connected with the driving gear 17. One end of the connecting shaft 16 is drivingly connected with a motor 20 through a gear set 19, so that by driving the driving gear 17 to rotate forward and backward through the motor 20, the first transverse support plate 2 and the second transverse support plate 4 can be adjusted to move towards each other, thereby being able to adjust the distance between the two lower bending plates 3, facilitating the bending treatment of the two side edges of cardboard with different widths, and having high transmission stability and convenient and fast adjustment.

[0023] Such as Figure 1 and Figure 2As shown in the figure, in order to position and bend cardboard boxes of different widths, a first cylinder 8 is further provided on the upper side of the upper bending seat 7. On the lower side of the upper bending seat 7, two sliders 10 are slidably arranged towards each other through a lead screw 9. On the lower sides of the two sliders 10, upper clamping plates 14 are provided through lower brackets 11. By driving the two sliders 10 to move towards each other through the lead screw 9 for adjustment, the lower brackets 11 can be driven to move and adjust, and then the distance between the two upper clamping plates 14 can be adjusted, which can meet the positioning and bending treatment of cardboard boxes of different widths, with relatively high bending efficiency. The lower side of the upper clamping plate 14 is provided with a lower clamping plate 12 through a second cylinder 13. The lower brackets 11 and the upper clamping plates 14 are integrally arranged into an L-shaped bracket, and the distance between the two upper clamping plates 14 is smaller than the distance between the two lower bending plates 3. The upper clamping plate 14 and the lower clamping plate 12 are arranged in parallel, and a protective layer is provided on one side of each of the upper clamping plate 14 and the lower clamping plate 12. The cardboard box is clamped and fixed between the two groups of upper clamping plates 14 and lower clamping plates 12 for positioning the cardboard to be bent, and the stability of clamping and fixing the cardboard box is relatively high, which is beneficial to improving the bending accuracy of the cardboard box.

[0024] As Figure 1 and Figure 2 shown in the figure, in order to improve the smoothness of the cardboard being stamped and bent by the lower bending plate 3, two groups of lower bending plates 3 are symmetrically arranged about the lower bending seat 1. On the upper side of the lower bending plate 3, a roller 6 is provided through a connecting seat 5. The outer diameter of the roller 6 is equal to the width of the lower bending plate 3, and the length of the roller 6 is smaller than the length of the lower bending plate 3, so that the sliding friction between the cardboard box and the lower bending plate 3 can be changed into rolling friction, which is convenient for improving the smoothness of the cardboard being stamped and bent by the lower bending plate 3.

[0025] As Figure 1 and Figure 2 shown in the figure, in order to improve the stability of the lateral movement adjustment of the lower bending plate 3, guiding sliding holes 18 are opened on both side walls of the lower bending seat 1, and both the first lateral support plate 2 and the second lateral support plate 4 are slidably inserted into the guiding sliding holes 18 to slide-guide the lateral movement adjustment of the first lateral support plate 2 and the second lateral support plate 4, which is beneficial to improving the stability of the lateral movement adjustment of the lower bending plate 3.

[0026] The working principle and usage process of the present utility model: During use, the cardboard box is clamped and fixed between the two groups of upper clamping plates 14 and lower clamping plates 12 for positioning, and then the upper bending seat 7 and the lower bracket 11 are driven to move downward by the first cylinder 8, and when both ends of the cardboard box pass through the lower bending plate 3, a ninety-degree upward bending treatment is performed. After the bending is completed, the machine shell is withdrawn, and the bending effect is good, and the operation is convenient and fast.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cardboard folding mechanism for cartons, comprising a lower folding seat (1) and an upper folding seat (7), characterized in that: At both ends inside the lower bending seat (1), a first transverse support plate (2) and a second transverse support plate (4) are slidably arranged towards each other through a gear-rack transmission group. At one end of each of the first transverse support plate (2) and the second transverse support plate (4), a lower bending plate (3) is provided. On the upper side of the upper bending seat (7), a first air cylinder (8) is provided, and on the lower side of the upper bending seat (7), two sliders (10) are slidably arranged towards each other through a lead screw (9). On the lower side of each of the two sliders (10), an upper clamping plate (14) is provided through a lower support (11). On the lower side of the upper clamping plate (14), a lower clamping plate (12) is provided through a second air cylinder (13), and the cardboard of the carton is clamped and fixed between the two groups of upper clamping plates (14) and lower clamping plates (12).

2. The carton board bending mechanism according to claim 1, characterized in that: Two groups of the lower bending plates (3) are symmetrically arranged with respect to the lower bending seat (1). On the upper side of the lower bending plate (3), a roller (6) is provided through a connecting seat (5).

3. The carton cardboard bending mechanism according to claim 2, characterized in that: The outer diameter of the roller (6) is equal to the width of the lower bending plate (3), and the length of the roller (6) is less than the length of the lower bending plate (3).

4. A carton board bending mechanism according to claim 1, characterized in that: The gear-rack transmission group includes a driving gear (17) rotatably arranged in the middle inside the lower bending seat (1) through a connecting shaft (16). On one side of each of the first transverse support plate (2) and the second transverse support plate (4), a driven tooth groove (15) is provided, and both of the two driven tooth grooves (15) are meshed and connected with the driving gear (17). One end of the connecting shaft (16) is drivingly connected with a motor (20) through a gear set (19).

5. A carton board bending mechanism according to claim 4, characterized in that: Guide sliding holes (18) are formed in both side walls of the lower bending seat (1), and both the first transverse support plate (2) and the second transverse support plate (4) are slidably inserted into the guide sliding holes (18).

6. The carton cardboard bending mechanism according to claim 1, characterized in that: The lower support (11) and the upper clamping plate (14) are integrally formed into an L-shaped support, and the distance between the two upper clamping plates (14) is less than the distance between the two lower bending plates (3).

7. A cardboard bending mechanism for a cardboard box according to claim 6, characterized in that: The upper clamping plate (14) and the lower clamping plate (12) are arranged in parallel, and a protective layer is provided on one side of each of the upper clamping plate (14) and the lower clamping plate (12).

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