Corrugated paper folding angle positioning device

Abstract

The utility model discloses a corrugated paper bevel positioning device which comprises a supporting plate, the front end of the supporting plate is rotatably connected with a turning plate through a rotating shaft, the top position of the supporting plate is adjustably provided with a movable plate, and the outer wall of the movable plate is fixedly provided with at least two travel switches. An n-shaped frame is fixedly installed at the position, close to the front end, of the top of the supporting plate, a first electric cylinder is fixedly installed at the top of the n-shaped frame, and a pressing plate is fixedly connected to the push rod end of the first electric cylinder; when the corrugated paper corner folding device is used, after the second electric cylinder is operated to drive the turning plate to rotate to a needed angle at the end of the supporting plate, corrugated paper to be folded penetrates through the space between the supporting plate and the pressing plate, the corrugated paper is pushed on the supporting plate, the end of the corrugated paper makes contact with the two travel switches and triggers the two travel switches, at the moment, the first electric cylinder pushes the pressing plate to move downwards, and the corrugated paper is folded. Corrugated paper is pressed on the surface of the supporting plate, then the corrugated paper can be folded, operation is easy and convenient, and the positioning efficiency of the corrugated paper is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of corrugated paper processing technology, specifically a corrugated paper corner positioning device. Background Technology

[0002] Corrugated cardboard is die-cut, creasing, and stapling or gluing to make corrugated boxes. Corrugated boxes are one of the most widely used packaging products, and their usage has always been the highest among all packaging products.

[0003] A search revealed that patent CN222372394U discloses a corner-folding device for corrugated cardboard box processing. This device uses a fixed bolt in conjunction with a pressure plate and rubber pad to limit the position of the corrugated cardboard to be folded, preventing positional shift during the folding process. A second electric push rod, working in conjunction with a push block, moves a connecting rod to adjust the angle between the support plate and the rotating plate. An external protractor can be used to adjust the angle to a suitable level. The first electric push rod then moves the corrugated cardboard to the corner-folding area. Finally, the motor is turned on, rotating the adjusting screw, which in turn moves the moving plate and the pressing wheel downwards. A telescopic rod, working in conjunction with a spring, allows for corner folding of the corrugated cardboard on the rotating plate at any angle.

[0004] Although the above solution can position one end of the corrugated cardboard within the U-shaped block by using fixing bolts, pressure plates, and rubber pads, its operation is cumbersome and inefficient, and needs improvement. Utility Model Content

[0005] The purpose of this invention is to provide a corrugated paper corner positioning device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A corrugated paper corner positioning device includes a tray, a flap rotatably connected to the front end of the tray via a pivot, a movable plate adjustable at the top of the tray, at least two limit switches fixedly installed on the outer wall of the movable plate, a U-shaped frame fixedly installed near the front end of the top of the tray, a first electric cylinder fixedly installed at the top of the U-shaped frame, a pressure plate fixedly connected to the push rod end of the first electric cylinder, and a second electric cylinder for driving the flap is installed at the bottom of the tray.

[0008] As a further embodiment of this utility model: a baffle is installed on the upper part of the tray corresponding to each limit switch. The limit switch is located between the movable plate and the corresponding baffle. A first slide rod is slidably provided on both sides of the outer wall of the movable plate at each limit switch. One end of the first slide rod is fixedly connected to the corresponding baffle, and the other end of the first slide rod is fixedly connected to a limit block.

[0009] As a further embodiment of this utility model: the outer wall of the first slide rod located between the movable plate and the baffle is fitted with a spring.

[0010] As a further embodiment of this utility model: the push rod end of the second electric cylinder is hinged to the bottom of the flip plate through the second hinge seat, and the other end of the second electric cylinder is hinged to the bottom of the support plate through the first hinge seat.

[0011] As a further embodiment of this utility model: a linear drive mechanism for driving the movable plate is installed on the pallet.

[0012] As a further embodiment of this utility model: the linear drive mechanism includes a screw that is rotatably mounted on the bottom of the pallet, one end of the screw is fixedly connected to a handwheel, a nut is fitted onto the outer wall of the screw, the top of the pallet has multiple through slots, the nut is located in the corresponding slot, and the top of the nut is fixedly connected to the movable plate.

[0013] As a further embodiment of this utility model: two guide rods are fixedly installed at the bottom of the tray, and sliding sleeves are slidably sleeved on the guide rods. The sliding sleeves are located in the corresponding opening grooves, and the top of the sliding sleeves are fixedly connected to the movable plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In use, this invention involves operating the second electric cylinder to drive the flip plate to rotate to the desired angle at the end of the pallet. The corrugated paper to be folded is then passed between the pallet and the pressure plate. The corrugated paper is then pushed on the pallet, causing its end to contact and trigger two limit switches. At this point, the first electric cylinder pushes the pressure plate downward, pressing the corrugated paper firmly onto the surface of the pallet. The corrugated paper can then be folded. The operation is simple and convenient, greatly improving the positioning efficiency of the corrugated paper. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a corrugated paper corner positioning device.

[0017] Figure 2 This is a schematic diagram of the linear drive mechanism in a corrugated paper corner positioning device.

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0019] The components include: tray 1, movable plate 2, limit switch 3, baffle 4, first slide rod 5, limit block 6, spring 7, U-shaped frame 8, first electric cylinder 9, pressure plate 10, second slide rod 11, rotating shaft 12, flip plate 13, second electric cylinder 14, first hinge seat 15, second hinge seat 16, opening slot 17, screw 18, nut 19, handwheel 20, guide rod 21, and sliding sleeve 22. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3 In this embodiment of the present invention, a corrugated paper corner positioning device includes a tray 1. A flip plate 13 is rotatably connected to the front end of the tray 1 via a rotating shaft 12. A movable plate 2 is installed at the top of the tray 1 in an adjustable position. At least two limit switches 3 are fixedly installed on the outer wall of the movable plate 2. A U-shaped frame 8 is fixedly installed near the front end of the top of the tray 1. A first electric cylinder 9 is fixedly installed on the top of the U-shaped frame 8. A pressure plate 10 is fixedly connected to the push rod end of the first electric cylinder 9. A second electric cylinder 14 for driving the flip plate 13 is installed at the bottom of the tray 1. The limit switches 3 and the first electric cylinder 9 are electrically connected to the same PLC controller. When the two limit switches 3 are triggered simultaneously, the first electric cylinder 9 will execute a preset command. In addition, the PLC controller is also electrically connected to an operation switch, which is used to control the extension and retraction of the first electric cylinder 9 and the second electric cylinder 14.

[0022] By adopting the above-mentioned solution, this utility model allows for easy operation. When the second electric cylinder 14 drives the flip plate 13 to rotate to the desired angle at the end of the pallet 1, the corrugated paper to be folded passes between the pallet 1 and the pressure plate 10. The corrugated paper is then pushed onto the pallet 1, causing its end to contact and trigger two limit switches 3. At this point, the first electric cylinder 9 pushes the pressure plate 10 downwards, pressing the corrugated paper firmly onto the surface of the pallet 1. The corrugated paper can then be folded. This simple and convenient operation greatly improves the positioning efficiency of the corrugated paper.

[0023] Specific combination Figure 1 and Figure 3In one embodiment of this utility model, a baffle 4 is installed above the tray 1 at the corresponding position of each limit switch 3. The limit switch 3 is located between the movable plate 2 and the corresponding baffle 4. A first slide rod 5 is slidably provided on both sides of the outer wall of the movable plate 2 at each limit switch 3. One end of the first slide rod 5 is fixedly connected to the corresponding baffle 4, and the other end of the first slide rod 5 is fixedly connected to a limit block 6.

[0024] With the baffle 4 in place, the limit switch 3 can be triggered simply by pushing the baffle 4 from the end of the corrugated cardboard. This allows corrugated cardboard of different thicknesses to be triggered by the limit switch 3 more accurately, and prevents the push rod of the limit switch from being inserted into the hole on the end face of the corrugated cardboard.

[0025] Specific combination Figure 3 Based on the previous embodiment, the first slide bar 5 is further provided with springs 7 on the outer wall between the movable plate 2 and the baffle 4. With the setting of springs 7, when the corner of the corrugated cardboard is folded and the first electric cylinder 9 is controlled by the operation switch to drive the pressure plate 10 to reset upward, the corrugated cardboard is pulled out from the U-shaped frame 8. At this time, the baffle 4 will be reset under the action of springs 7.

[0026] Specific combination Figure 1 and Figure 2 In one embodiment of this utility model, the push rod end of the second electric cylinder 14 is hinged to the bottom of the flip plate 13 through the second hinge seat 16, and the other end of the second electric cylinder 14 is hinged to the bottom of the support plate 1 through the first hinge seat 15. By simply controlling the extension and retraction of the second electric cylinder 14 through the operating switch, the flip plate 13 can be driven to rotate around the pivot 12, thereby adjusting the angle between the support plate 1 and the flip plate 13. The operation is simple and convenient.

[0027] Furthermore, in some preferred embodiments of this utility model, the pallet 1 is equipped with a linear drive mechanism for driving the movable plate 2, so as to adjust the distance between the baffle 4 and the flip plate 13, thereby facilitating the adaptation of corrugated paper of different sizes.

[0028] Specific combination Figure 1 and Figure 2 In one embodiment of the present invention, the linear drive mechanism includes a screw 18 rotatably mounted on the bottom of the support plate 1. One end of the screw 18 is fixedly connected to a handwheel 20. A nut 19 is fitted onto the outer wall of the screw 18. A plurality of opening slots 17 are provided through the top of the support plate 1. The nut 19 is located in the corresponding opening slot 17, and the top end of the nut 19 is fixedly connected to the movable plate 2.

[0029] By rotating the screw 18 with the handwheel 20, the movable plate 2 can be moved on the support plate 1 by the cooperation of the screw 18 and the nut 19. The operation is simple and convenient.

[0030] Specific combination Figure 2 Based on the previous embodiment, two guide rods 21 are fixedly installed at the bottom of the support plate 1. Sliding sleeves 22 are slidably sleeved on the guide rods 21. The sliding sleeves 22 are located in the corresponding opening slots 17, and the top of the sliding sleeves 22 are fixedly connected to the movable plate 2.

[0031] The cooperation between the sliding sleeve 22 and the guide rod 21 can effectively improve the stability of the movable plate 2 moving on the support plate 1.

[0032] Specific combination Figure 1 In one embodiment of the present invention, a plurality of second slide rods 11 are slidably provided on the top of the U-shaped frame 8, and the lower ends of the second slide rods 11 are all fixedly connected to the pressure plate 10 to improve the stability of the pressure plate 10 moving up and down.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for positioning the corners of corrugated paper, characterized in that: The device includes a tray (1), a flap (13) is rotatably connected to the front end of the tray (1) via a pivot (12), a movable plate (2) is installed at the top of the tray (1) with adjustable position, at least two limit switches (3) are fixedly installed on the outer wall of the movable plate (2), a U-shaped frame (8) is fixedly installed at the top of the tray (1) near the front end, a first electric cylinder (9) is fixedly installed at the top of the U-shaped frame (8), a pressure plate (10) is fixedly connected to the push rod end of the first electric cylinder (9), and a second electric cylinder (14) for driving the flap (13) is installed at the bottom of the tray (1).

2. The device according to claim 1, wherein: A baffle (4) is installed above the tray (1) at the corresponding position of each limit switch (3). The limit switch (3) is located between the movable plate (2) and the corresponding baffle (4). The outer wall of the movable plate (2) is provided with a first slide rod (5) that can slide through both sides of each limit switch (3). One end of the first slide rod (5) is fixedly connected to the corresponding baffle (4), and the other end of the first slide rod (5) is fixedly connected to a limit block (6).

3. A device for positioning the corners of corrugated paper according to claim 2, characterized in that: The first slide bar (5) is fitted with springs (7) on the outer wall between the movable plate (2) and the baffle (4).

4. The device according to claim 1, wherein: The push rod end of the second electric cylinder (14) is hinged to the bottom of the flap (13) through the second hinge seat (16), and the other end of the second electric cylinder (14) is hinged to the bottom of the support plate (1) through the first hinge seat (15).

5. The device according to claim 1, wherein: The pallet (1) is equipped with a linear drive mechanism for driving the movable plate (2).

6. A device for positioning the corners of corrugated paper according to claim 5, characterized in that: The linear drive mechanism includes a screw (18) rotatably mounted on the bottom of the tray (1). One end of the screw (18) is fixedly connected to a handwheel (20). A nut (19) is fitted onto the outer wall of the screw (18). The top of the tray (1) is provided with multiple opening slots (17). The nut (19) is located in the corresponding opening slot (17), and the top of the nut (19) is fixedly connected to the movable plate (2).

7. A corrugated paper corner positioning device according to claim 6, characterized in that: Two guide rods (21) are fixedly installed at the bottom of the pallet (1). Sliding sleeves (22) are slidably sleeved on the guide rods (21). The sliding sleeves (22) are located in the corresponding opening slots (17), and the top of the sliding sleeves (22) are fixedly connected to the movable plate (2).

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