Cardboard corner folding mechanism

Abstract

The utility model belongs to the technical field of corner protector production equipment, concretely relates to paperboard corner protector folding mechanism, including conveying guide rail, the paperboard card seat is slidably installed on conveying guide rail, the side of paperboard card seat is provided with folding roof, folding roof rotation concatenation is in support pivot, rear end articulated telescopic push rod, the rear side of conveying guide rail is provided with output guide groove corresponding folding roof, output guide groove includes the side baffle that is symmetrical left and right, side baffle all sliding sleeve joint is on the translation slide rail. The utility model discloses through design automatic paperboard conveying card seat and folding roof drive, can automatically complete the folding procedure of corner protector, and the manufacturing technology is stable and reliable, is helpful to improve the production efficiency and product quality of corner protector.

Description

Technical Field

[0001] This utility model relates to the technical field of corner protector production equipment, and more specifically, to a cardboard corner protector folding mechanism. Background Technology

[0002] Corner protectors, generally made of cardboard, are characterized by their low price, light weight, sturdiness, and compliance with environmental protection requirements. Also known as corner wraps, corner panels, edge boards, corners, or angle steel, they are one of the ideal new green packaging materials. Most corner protectors on the market are made by laminating multiple layers of cowhide and then shaping and pressing them using a corner protector machine; they are mainly L-shaped and U-shaped. When used for stacking goods, they can strengthen the edge support of the packaging and protect its overall packaging strength. They can replace wood and are 100% recyclable.

[0003] Placing corner protectors at the four corners of a packaging box enhances its stacking strength, cushions impacts, and allows boxes to be stacked together without crushing the contents. Because corner protectors significantly reduce damage to goods during transport, they are considered an ideal packaging product that helps enhance the product's external image. Corner protectors have a wide range of applications depending on the mode of transport and environmental conditions.

[0004] Current corner protector application solutions on the market, as shown in the patent document with patent number CN202210693982.1, entitled "A folding corner protector for packaging protection and its preparation method," include the following corner protector production method: Process 1: Cut the sheets of flexible surface layer and rigid protective layer into predetermined widths; Process 2: The sheets cut to a predetermined width are conveyed to the lamination area via a conveying device to laminate multiple layers of raw materials; Process 3: The sheet of the flexible surface layer and the sheet of the rigid protective layer are compositely connected in the composite area, and the connection method includes: bonding and / or hot pressing; Process 4: The composite area is also provided with a positioning device to fix the sheet of the flexible surface layer and the sheet of the rigid protective layer at a predetermined position, and the positioning device is provided before and / or during the connecting composite process; Process 5: The equipment for preparing the foldable corner protector is also equipped with a cutting device. The cutting device is set after the composite connection process. The cutting device presets the time interval for each cut according to the conveying speed of the conveying device, so as to obtain a corner protector of preset length. Process 6: The cutting methods used by the cutting device include: laser, heating wire, and cutting tool; Process 7: The equipment for preparing the foldable corner protector is also equipped with a printing device, in which the printing content is preset and printed on the foldable corner protector; the printing content includes: letters, patterns, text, and numbers; the printing methods include: embossing, screen printing, pad printing, transfer printing, inkjet printing, and steel stamping. Although the above solutions provide multiple steps for making corner protectors, the operation is relatively complicated and basically requires manual labor by workers, resulting in low production efficiency, inconsistency in product quality, and inability to meet the ever-increasing production demands.

[0005] Therefore, it is necessary to design automated mechanisms related to the production of corner protectors. Utility Model Content

[0006] To address the problems of existing corner protector production methods being cumbersome, complex, and largely reliant on manual labor, resulting in low production efficiency, inconsistent product quality, and an inability to meet ever-increasing production demands, a cardboard corner protector folding mechanism is provided.

[0007] A cardboard corner protector folding mechanism includes a conveying guide rail, on which a cardboard holder is slidably mounted. A folding top plate is provided on the side of the cardboard holder. The folding top plate is rotatably connected to a support shaft. A telescopic push rod is hinged to the rear end. An output guide groove is provided on the conveying guide rail corresponding to the rear side of the folding top plate. The output guide groove includes symmetrical side baffles, which are slidably sleeved on a translational slide rail.

[0008] Furthermore, a lifting pressure bar is provided above the conveying guide rail, and the lifting pressure bar is located on the inner side of the folding top plate, with the lifting pressure bar parallel to the folding top plate.

[0009] Furthermore, a translational base is connected above the lifting pressure bar, and an adjusting screw is connected in series in the translational base.

[0010] Furthermore, the upper part of the translation base and the adjusting screw are both connected to the lifting platform. The top center of the lifting platform is connected to a lifting push rod, and lifting guide rods are vertically sleeved on both sides. The lifting push rod and the lifting guide rod are both installed on the gantry frame.

[0011] Furthermore, the cardboard card holder includes symmetrical cardboard baffles, each of which is connected to a baffle lifting servo, which is mounted on a baffle servo slide.

[0012] Furthermore, the support shaft and telescopic push rod are mounted on the top plate servo slide.

[0013] Furthermore, folding top plates are symmetrically arranged on the left and right sides of the cardboard card holder.

[0014] Furthermore, the side baffles on the left and right sides are respectively threaded onto both sides of the bidirectional screw with positive and negative threads, and the bidirectional screw with positive and negative threads is coaxially connected in series with a width-adjusting motor.

[0015] The advantages of this utility model are: 1. It can replace manual labor in the corner folding process of cardboard, with high work efficiency and stable processing results.

[0016] 2. Position adjustment mechanisms are set on multiple parts, which can be adapted to various sizes of cardboard for corner protection production.

[0017] 3. High degree of automation, easy to use, and can run continuously for a long time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the cardboard corner protector folding mechanism; Figure 2 A detailed structural diagram of the cardboard card holder; Figure 3 This is a detailed structural diagram of the folding roof panel; Figure 4 To output a detailed structural diagram of the guide groove; Figure 5 This is a detailed structural diagram of the lifting pressure bar.

[0020] Attached image labels: 1. Conveying guide rail; 2. Cardboard holder; 201. Cardboard baffle; 202. Baffle lifting servo; 203. Baffle servo slide; 3. Folding top plate; 301. Support shaft; 302. Telescopic push rod; 303. Top plate servo slide; 4. Output guide groove; 401. Side baffle; 402. Translation slide rail; 403. Bidirectional screw with positive and negative threads; 404. Width adjustment motor; 5. Lifting pressure bar; 501. Translation base; 502. Adjusting screw; 503. Lifting platform; 504. Lifting push rod; 505. Lifting guide rod; 506. Gantry frame. Detailed Implementation

[0021] To address the problems of existing corner protector production methods being cumbersome, complex, and largely reliant on manual labor, resulting in low production efficiency, inconsistent product quality, and an inability to meet ever-increasing production demands, a cardboard corner protector folding mechanism is provided.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] It should be noted that the terms such as "inner", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as part of the scope of implementation of this utility model, as stated above.

[0024] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

[0025] like Figure 1-5 As shown, this embodiment provides a cardboard corner protector folding mechanism, including a conveying guide rail 1. A cardboard holder 2 is slidably installed on the conveying guide rail 1. A folding top plate 3 is provided on the side of the cardboard holder 2. The folding top plate 3 is rotatably connected to a support shaft 301. A telescopic push rod 302 is hinged to the rear end. An output guide groove 4 is provided on the conveying guide rail 1 corresponding to the rear side of the folding top plate 3. The output guide groove 4 includes left and right symmetrical side baffles 401. The side baffles 401 are slidably sleeved on the translation slide rail 402.

[0026] During operation, the cardboard material to be folded for corner protectors is first placed into the cardboard holder 2. The sliding cardboard holder 2 conveys the cardboard material to the folding top plate 3. Under the push of the telescopic push rod 302, the folding top plate 3 rotates upward along the support shaft 301, pushing the outer side of the cardboard material upward from the bottom to form corner protectors. Then, the folded cardboard is pushed into the output guide groove 4 by the cardboard holder 2 and a new cardboard, and is output in sequence. The spacing of the baffles 401 on both sides of the translation slide rail 402 can be adjusted as needed to accommodate corner protector products of different widths.

[0027] A lifting pressure strip 5 is provided above the conveying guide rail 1. The lifting pressure strip 5 is located inside the folding top plate 3 and is parallel to it. The lifting pressure strip 5 can press out creases on the top of the cardboard material to position the corner of the cardboard material. It can also be used to press the cardboard material firmly when the folding top plate 3 is flipped upward, preventing the cardboard material from loosening or shifting under force when folding.

[0028] The lifting pressure bar 5 is connected to a translation base 501 above it, and an adjusting screw 502 is connected in series in the translation base 501. The position of the lifting pressure bar 5 can also be adjusted by sliding to adapt to different specifications of corner protector products. It is worth mentioning that, in addition to manually operating the adjusting screw 502, a servo motor can also be equipped to form a servo slide, so that the position of the lifting pressure bar 5 can be automatically adjusted by an industrial control computer (any commonly available model will do).

[0029] The translation base 501 and the adjusting screw 502 are both connected to the lifting platform 503. A lifting push rod 504 is connected to the center of the top of the lifting platform 503, and lifting guide rods 505 are vertically sleeved on both sides. Both the lifting push rod 504 and the lifting guide rods 505 are mounted on the gantry frame 506. The gantry frame 506 and the lifting push rod 504, along with other mechanisms, ensure stable operation of the lifting pressure bar 5 and improve processing accuracy.

[0030] The cardboard holder 2 includes symmetrical cardboard baffles 201, each with a baffle lifting servo 202 connected to its lower side. The baffle lifting servo 202 is mounted on a baffle servo slide 203. The baffle lifting servo 202 can lower and retract the cardboard baffles 201 during the corner-folding process, preventing them from obstructing the corner-folding operation. The baffle servo slide 203 can drive the cardboard baffles 201 to move along the conveyor guide rail 1, improving the conveying efficiency of the cardboard raw materials.

[0031] The supporting pivot 301 and the telescopic push rod 302 are mounted on the top plate servo slide 303. Folding top plates 3 are symmetrically arranged on the left and right sides of the cardboard holder 2. The position of the folding top plates 3 can also be adjusted by the servo slide, and they are symmetrically arranged on both sides of the cardboard holder 2 to adapt to the production needs of various corner protector products.

[0032] The left and right side baffles 401 are threaded onto both sides of the bidirectional screw 403 with positive and negative threads, and the bidirectional screw 403 with positive and negative threads is coaxially connected in series with a width-adjusting motor 404. The bidirectional screw 403 with positive and negative threads, in conjunction with the width-adjusting motor 404, drives the left and right side baffles 401 to move synchronously in opposite directions, thereby improving adjustment efficiency.

[0033] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be assumed that the specific implementation of the present utility model is limited to these descriptions. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present utility model.

Claims

1. A paperboard corner protector folding mechanism, characterized by, The device includes a conveying guide rail, on which a cardboard holder is slidably mounted. A folding top plate is provided on the side of the cardboard holder. The folding top plate is rotatably connected to a supporting shaft. A telescopic push rod is hinged to the rear end of the cardboard holder. An output guide groove is provided on the conveying guide rail corresponding to the rear side of the folding top plate. The output guide groove includes symmetrical side baffles, which are slidably sleeved on a translational slide rail.

2. The paperboard corner protector folding mechanism of claim 1, wherein, A lifting pressure bar is provided above the conveying guide rail. The lifting pressure bar is located on the inner side of the folding top plate and is parallel to the folding top plate.

3. The paperboard corner protector folding mechanism of claim 2, wherein, A translation base is connected above the lifting pressure bar, and an adjusting screw is connected in series in the translation base.

4. The paperboard corner protector folding mechanism of claim 3, wherein, The translation base and the adjusting screw are both connected to the lifting platform. The top center of the lifting platform is connected to a lifting push rod, and lifting guide rods are vertically sleeved on both sides. The lifting push rod and the lifting guide rod are both installed on the gantry frame.

5. The paperboard corner protector folding mechanism of claim 1, wherein, The cardboard holder includes symmetrical cardboard baffles, and each cardboard baffle is connected to a baffle lifting servo, which is mounted on a baffle servo slide.

6. The paperboard corner protector folding mechanism of claim 1, wherein, The supporting pivot and telescopic push rod are mounted on the top plate servo slide.

7. The paperboard corner protector folding mechanism of claim 6, wherein, The cardboard card holder has symmetrically arranged folding top plates on its left and right sides.

8. The paperboard corner protector folding mechanism of claim 1, wherein, The side baffles on the left and right sides are respectively threaded onto the two sides of the bidirectional screw with positive and negative threads, and the bidirectional screw with positive and negative threads is coaxially connected in series with a width-adjusting motor.

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