A water-applying structure for the side of a cardboard box used in a cardboard forming machine

Abstract

This invention discloses a side-water-applying structure for cardboard boxes used in cardboard forming machines, belonging to the technical field of cardboard processing equipment. It includes a water injection box, absorbent foam, a water injection pipe, a water storage tank, an elastic element, and an ejector pin. A supporting rotating cylinder is rotatably mounted in the center of the water injection box. The absorbent foam is inserted and positioned on the outer wall of the supporting rotating cylinder. The water storage tank is threaded into the top of the other end of the water injection pipe. A sealing rubber gasket with a notch is fixedly connected inside the water outlet pipe. The elastic element and the ejector pin are respectively positioned above and below the sealing rubber gasket. The ejector pin includes a telescopic top block and a top rod fixed to the telescopic top block. When water is needed, the telescopic top block can push upwards to open the sealing rubber gasket to inject water into the water injection box, facilitating water absorption by the absorbent foam. This allows the absorbent foam to perform a water-applying operation on the cardboard that slides in contact with it. This invention has the technical advantages of automated synchronous water application, uniform and stable water application, strong adaptability, and convenient installation.

Description

Technical Field

[0001] This invention belongs to the technical field of cardboard processing equipment, and particularly relates to a water-applying structure for the side of a cardboard box used in a cardboard forming machine. Background Technology

[0002] During the cardboard box forming process, the sides of the cardboard need to be moistened with water to ensure the forming effect of subsequent creasing and folding processes. In the existing technology, this moistening process is mainly done manually. The specific operation is as follows: the operator needs to first remove the cardboard sheets one by one from the forming machine, then manually moisten the edges of both sides of the cardboard. After moistening, the cardboard sheets need to be stacked one by one and sent back to the equipment. This operating method has the following drawbacks: First, it is inefficient, as the speed of manual watering is seriously mismatched with the automated production rhythm of the forming machine, becoming a bottleneck for the entire production line. Second, the quality is unstable, as the intensity and amount of water applied manually are entirely controlled by experience, which can easily lead to uneven watering, local over-wetting or under-wetting, directly affecting the forming accuracy of the carton. Third, it is labor-intensive, as the long-term repetitive watering operation significantly increases the workload of operators and results in high labor costs.

[0003] Currently, the industry lacks a dedicated structure that can be directly integrated into cardboard forming machines to achieve automated side water application, which fails to meet the demand for efficient and stable production. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a paperboard forming machine for wiping the sides of cartons with a water-applying structure. This structure has the advantages of automated synchronous water application, uniform and stable water application, strong adaptability, and convenient installation. It solves the problems of low efficiency, unstable water application quality, and high labor intensity and time-consuming operation in the prior art.

[0005] This invention is implemented as follows: a cardboard box side-water-applying structure for a cardboard forming machine includes a water injection box, absorbent foam, a water injection pipe, a water storage tank, an elastic element, and an ejector pin. A supporting rotating cylinder is rotatably mounted in the middle of the water injection box. The absorbent foam is inserted and positioned on the outer wall of the supporting rotating cylinder. One end of the water injection pipe is fixedly connected to the side wall of the water injection box, and the top of the other end of the water injection pipe is threadedly connected to the water storage tank. A water outlet pipe is integrally fixed to the bottom of the water storage tank. A sealing rubber gasket with a notch is fixedly connected inside the water outlet pipe. The elastic element and the ejector pin are respectively located directly above and below the sealing rubber gasket. The ejector pin includes a telescopic top block and a top rod fixed to the telescopic top block. When water needs to be injected, the telescopic top block can push the sealing rubber gasket upward to inject water into the water injection box, facilitating the absorbent foam to absorb water, thereby enabling the absorbent foam to perform a water-applying operation on the cardboard that slides in contact with it.

[0006] As a preferred embodiment of the present invention, the bottom of the supporting rotating cylinder is connected to the inner bottom of the water injection box via a bearing, the outer wall of the supporting rotating cylinder is provided with anti-slip texture, and the middle of the water-absorbing foam is provided with an insertion hole that matches the supporting rotating cylinder.

[0007] With this design, the support drum can rotate relative to the water injection box, so that the absorbent foam and the cardboard come into contact with each other through rolling friction. This not only improves the uniformity of water application but also reduces wear and tear on the cardboard and the absorbent foam. The anti-slip texture design increases the friction between the support drum and the absorbent foam, preventing the absorbent foam from slipping or shifting during rotation and ensuring the stability of the water application process.

[0008] As a preferred embodiment of the present invention, a guide skirt is fixedly connected to the top of the water injection box corresponding to one side of the absorbent foam. When the cardboard comes into contact with the absorbent foam, it is used to collect the excess water squeezed out from the absorbent foam. A protective plate is fixedly connected to the top of the water injection box corresponding to the other side of the absorbent foam to prevent excess water from splashing out of the absorbent foam.

[0009] With this design, the guide skirt can catch the excess water squeezed out when the absorbent foam comes into contact with the cardboard and guide it back into the water injection box, avoiding water waste and dripping that could contaminate the equipment. The protective plate can block excess water splashing from the absorbent foam, preventing it from splashing onto other parts of the equipment and ensuring a clean production environment.

[0010] As a preferred embodiment of the present invention, the top of the water injection pipe is fixedly connected to an internal threaded interface, which is threadedly connected to the outer wall of the water outlet pipe.

[0011] This setup allows for quick assembly and disassembly of the water storage tank and water injection pipes, making it convenient for operators to replenish or replace the water storage tank, and offering flexible and convenient use.

[0012] As a preferred embodiment of the present invention, the notch on the sealing rubber gasket has a cross-shaped structure, and the elastic element includes a bracket fixedly connected to the inner wall of the water outlet pipe, a telescopic spring fixed in the middle of the bracket, and an elastic plate fixed to the bottom of the telescopic spring. When the water outlet pipe is closed, the elastic plate fits against the upper middle of the notch, and the notches are tightly fitted together. When the water outlet pipe is opened, the elastic plate and the sealing rubber gasket are lifted by the telescopic top block, and a certain gap is separated between the notches for water to flow through.

[0013] With this design, the sealing rubber gasket of the cross-shaped notch can be tightly closed under the action of the elastic plate, effectively blocking the water flow. When the telescopic top block is lifted upward, the elastic plate and the sealing rubber gasket move upward synchronously, and the notch is separated to form a water supply gap. Combined with the liquid level difference, the water flow can be precisely controlled, which not only ensures the timeliness of water injection, but also avoids excessive water injection that would cause the water-absorbing foam to become too wet.

[0014] In a preferred embodiment of the present invention, the upper end of the top rod is fixed to the telescopic top block, the lower end of the top rod slides through to the bottom of the water injection pipe and is fixedly connected to a handle, a telescopic plate is sleeved and fixed to the lower end side wall of the top rod, and a support spring is fixed to both ends of the telescopic plate. The top of the support spring is fixedly connected to the bottom of the water injection pipe to achieve elastic support for the telescopic top block.

[0015] With this setup, the handle can move the top rod and the telescopic top block up and down, facilitating the opening and closing of the water outlet pipe. The combination of the support spring and the telescopic plate provides elastic support for the top rod, keeping the telescopic top block in its reset position when not in operation, ensuring the normally closed state of the sealing rubber gasket. At the same time, the elastic support structure can buffer the impact force when the top block is lifted, extending the service life of the water control mechanism.

[0016] As a preferred embodiment of the present invention, a mounting plate is fixedly connected to the back of the water injection box, and the mounting plate has evenly distributed mounting holes.

[0017] This setup allows for quick and easy installation of the water-applying structure and the cardboard forming machine. The installation position can be flexibly adjusted according to the width of the cardboard, making it compatible with cardboard forming machines of different specifications. This effectively improves the versatility and ease of installation of the water-applying structure.

[0018] Compared with existing technologies, the beneficial effects of this invention are as follows: Synchronous water application is achieved through the sliding contact between the absorbent foam and the cardboard during conveying, eliminating the need for manual intervention and ensuring the water application rhythm perfectly matches the automated production rhythm of the forming machine, effectively improving work efficiency; the absorbent foam maintains uniform moisture through capillary action, and the rolling friction of the supporting drum further guarantees the uniformity of water application, avoiding problems such as excessive wetness, excessive dryness, or uneven water application caused by unstable force and water volume during manual water application, effectively improving the forming accuracy of the carton; the elimination of manual handling and water application of each sheet reduces labor intensity and costs; the guide skirt can recycle excess water, reducing water waste, and the protective plate prevents water splashing, keeping the equipment and production environment clean; the design of the mounting plate facilitates installation and modification on cardboard forming machines of different specifications, demonstrating strong adaptability and versatility. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present invention; Figure 2 This is a cross-sectional structural schematic diagram provided in an embodiment of the present invention; Figure 3 This is provided by the embodiments of the present invention. Figure 2 Enlarged structural diagram of the central water injection pipeline; Figure 4 This is provided by the embodiments of the present invention. Figure 3 Schematic diagram of the split structure; Figure 5This is a schematic diagram of the rear view structure provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the supporting rotating cylinder structure provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the paperboard in the water-wiping state during use, provided in an embodiment of the present invention.

[0020] In the diagram: 1. Water injection box; 101. Protective plate; 102. Guide skirt; 103. Mounting plate; 2. Water-absorbing foam; 3. Supporting drum; 301. Anti-slip texture; 4. Water injection pipe; 401. Internal threaded interface; 5. Water storage tank; 501. Water outlet pipe; 6. Elastic component; 601. Bracket; 602. Telescopic spring; 603. Elastic plate; 7. Sealing rubber gasket; 701. Notch groove; 8. Telescopic top block; 801. Top rod; 802. Handle; 803. Supporting spring; 804. Telescopic plate. Detailed Implementation

[0021] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0023] refer to Figures 1 to 7 As shown in the embodiment of the present invention, a side-water-applying structure for a cardboard forming machine includes a water injection box 1, absorbent foam 2, water injection pipe 4, water storage tank 5, elastic element 6, and ejector pin. A supporting rotating cylinder 3 is rotatably mounted in the middle of the water injection box 1. The absorbent foam 2 is inserted and positioned on the outer wall of the supporting rotating cylinder 3. One end of the water injection pipe 4 is fixedly connected to the side wall of the water injection box 1, and the top of the other end of the water injection pipe 4 is threadedly connected to the water storage tank 5. The bottom of the water storage tank 5 is integrally fixed with... The water outlet pipe 501 has a sealing rubber gasket 7 with a notch 701 fixedly connected inside. The elastic element 6 and the ejector pin are respectively located above and below the sealing rubber gasket 7. The ejector pin includes a telescopic top block 8 and a top rod 801 fixed to the telescopic top block 8. When water needs to be injected, the telescopic top block 8 can push the sealing rubber gasket 7 upward to inject water into the water injection box 1, so that the water-absorbing foam 2 can absorb water and realize the water-absorbing foam 2 to wipe the cardboard that slides in contact with it.

[0024] Specifically, the bottom of the supporting rotating cylinder 3 is connected to the inner bottom of the water injection box 1 through a bearing. The outer wall of the supporting rotating cylinder 3 is provided with anti-slip texture 301. The middle of the water-absorbing foam 2 is provided with an insertion hole that matches the supporting rotating cylinder 3.

[0025] Using the above scheme, the supporting rotating cylinder 3 can rotate relative to the water injection box 1, so that the water-absorbing foam 2 and the cardboard are in contact with each other by rolling friction, which not only improves the uniformity of water application, but also reduces the wear of the cardboard and the water-absorbing foam 2. The anti-slip texture 301 design can increase the friction between the supporting rotating cylinder 3 and the water-absorbing foam 2, prevent the water-absorbing foam 2 from slipping or shifting during rotation, and ensure the stability of the water application action.

[0026] Specifically, a guide skirt 102 is fixedly connected to the top of the water injection box 1 on one side of the absorbent foam 2. When the cardboard comes into contact with the absorbent foam 2, it is used to collect the excess water squeezed out of the absorbent foam 2. A protective plate 101 is fixedly connected to the top of the water injection box 1 on the other side of the absorbent foam 2 to prevent excess water from splashing out of the absorbent foam 2.

[0027] Using the above solution, the guide skirt 102 can catch the excess water squeezed out when the absorbent foam 2 comes into contact with the cardboard and guide it back into the water injection box 1, avoiding water waste and dripping that could contaminate the equipment. The protective plate 101 can block excess water splashing on the absorbent foam 2, preventing it from splashing onto other parts of the equipment and ensuring a clean production environment.

[0028] Specifically, the top of the water injection pipe 4 is fixedly connected to an internal thread interface 401, which is threadedly connected to the outer wall of the water outlet pipe 501.

[0029] The above solution allows for quick assembly and disassembly of the water storage tank 5 and the water injection pipe 4, making it convenient for operators to replenish or replace the water storage tank 5, and making it flexible and convenient to use.

[0030] Specifically, the notch 701 on the sealing rubber gasket 7 has a cross-shaped structure. The elastic element 6 includes a bracket 601 fixedly connected to the inner wall of the water outlet pipe 501, a telescopic spring 602 fixed in the middle of the bracket 601, and an elastic plate 603 fixed to the bottom of the telescopic spring 602. When the water outlet pipe 501 is closed, the elastic plate 603 fits against the upper middle of the notch 701, and the notches 701 are tightly fitted together. When the water outlet pipe 501 is opened, the elastic plate 603 and the sealing rubber gasket 7 are lifted by the telescopic top block 8, and a certain gap is separated between the notches 701 for water to flow through.

[0031] Using the above scheme, the sealing rubber gasket 7 of the cross-shaped notch groove 701 can be tightly closed under the action of the elastic plate 603, effectively blocking the water flow. When the telescopic top block 8 is lifted upward, the elastic plate 603 and the sealing rubber gasket 7 move upward synchronously, and the notch groove 701 separates to form a water supply gap. Combined with the liquid level difference, the water flow can be precisely controlled, which not only ensures the timeliness of water injection, but also avoids excessive water injection that would cause the water-absorbing foam 2 to become too wet.

[0032] Specifically, the upper end of the top rod 801 is fixed to the telescopic top block 8, and the lower end of the top rod 801 slides through to the bottom of the water injection pipe 4 and is fixedly connected to a handle 802. A telescopic plate 804 is sleeved and fixed to the lower side wall of the top rod 801. Support springs 803 are fixed to both ends of the telescopic plate 804. The top of the support springs 803 is fixedly connected to the bottom of the water injection pipe 4 to achieve elastic support for the telescopic top block 8.

[0033] Using the above scheme, the handle 802 can drive the top rod 801 and the telescopic top block 8 to move up and down, which is conducive to realizing the opening and closing operation of the water outlet pipe 501. The combination of the support spring 803 and the telescopic plate 804 can provide elastic support for the top rod 801, so that the telescopic top block 8 remains in the reset state when not in operation, ensuring the normally closed state of the sealing rubber gasket 7. At the same time, the elastic support structure can buffer the impact force when the top block is lifted, and improve the service life of the water control mechanism.

[0034] Specifically, the back of the water injection box 1 is fixedly connected to an installation plate 103, and the installation plate 103 has evenly distributed installation holes.

[0035] The above solution enables rapid and secure installation of the water-applying structure and the cardboard forming machine. The installation position can be flexibly adjusted according to the width of the cardboard, adapting to different specifications of cardboard forming machines, effectively improving the versatility and ease of installation of the water-applying structure.

[0036] Working principle of the invention: In use, the water-applying structure is symmetrically fixed to both sides of the cardboard forming machine using mounting plate 103, ensuring that the height of the absorbent foam 2 is precisely aligned with the crease lines on the side of the cardboard. The spacing can be flexibly adjusted according to the width of the cardboard. The absorbent foam 2 is fitted onto the supporting rotating cylinder 3, with its lower part immersed in the water in the water injection box 1. Water is conducted to the entire foam body through capillary action, keeping it moist. The supporting rotating cylinder 3 can rotate freely with the cardboard. When the cardboard is conveyed to the water-applying station by the forming machine, the two sides of the foam roll into contact with the absorbent foam 2, and the water is evenly applied to the crease lines on the side of the cardboard, achieving automated water-applying operation synchronized with the production rhythm. At the same time, the protective guide... The skirt edge 102 catches excess water squeezed out when the absorbent foam 2 comes into contact with the cardboard and guides it back to the water injection box 1, reducing water waste. The protective plate 101 prevents water from splashing and avoids contaminating the equipment and production environment. When the water level in the water injection box 1 is insufficient, holding the handle 802 drives the top rod 801 and the telescopic top block 8 to push up, opening the elastic plate 603 and the sealing rubber gasket 7. The cross notch groove 701 separates to form a water flow gap, and water flows into the water injection box 1 by the liquid level difference. After releasing the handle 802, the support spring 803 drives the top rod 801 to reset, and the elastic element 6 re-presses the sealing gasket, stopping the water supply. This achieves precise water volume control and effectively improves work efficiency.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-applying structure for the side of a cardboard box used in a cardboard forming machine, characterized in that: The system includes a water injection box (1), absorbent foam (2), water injection pipe (4), water storage tank (5), elastic element (6), and ejector pin. A supporting rotating cylinder (3) is rotatably installed in the middle of the water injection box (1). The absorbent foam (2) is inserted and positioned on the outer wall of the supporting rotating cylinder (3). One end of the water injection pipe (4) is fixedly connected to the side wall of the water injection box (1). The top of the other end of the water injection pipe (4) is threadedly connected to the water storage tank (5). The bottom of the water storage tank (5) is integrally fixed with a water outlet pipe (501). (501) has a sealing rubber pad (7) with a notch (701) inside. The elastic element (6) and the ejector pin are respectively located above and below the sealing rubber pad (7). The ejector pin includes a telescopic top block (8) and a top rod (801) fixed to the telescopic top block (8). When water needs to be injected, the telescopic top block (8) can push the sealing rubber pad (7) upward to inject water into the water injection box (1), so that the water-absorbing foam (2) can absorb water and realize the water-absorbing foam (2) to wipe the cardboard that slides in contact with it.

2. The paperboard forming machine side water-applying structure as described in claim 1, characterized in that: The bottom of the support cylinder (3) is connected to the inner bottom of the water injection box (1) by a bearing. The outer wall of the support cylinder (3) is provided with anti-slip texture (301). The middle part of the water-absorbing foam (2) is provided with an insertion hole that matches the support cylinder (3).

3. The paperboard forming machine side water-applying structure as described in claim 1, characterized in that: The top of the water injection box (1) corresponding to one side of the absorbent foam (2) is fixedly connected to a guide skirt (102), which is used to collect the excess water squeezed out of the absorbent foam (2) when the cardboard comes into contact with the absorbent foam (2). The top of the water injection box (1) corresponding to the other side of the absorbent foam (2) is fixedly connected to a protective plate (101), which is used to prevent excess water from splashing out of the absorbent foam (2).

4. The paperboard forming machine side water-applying structure as described in claim 1, characterized in that: The top of the water injection pipe (4) is fixedly connected to an internal threaded interface (401), which is threaded to the outer wall of the water outlet pipe (501).

5. The paperboard forming machine side water-applying structure as described in claim 1, characterized in that: The notch (701) on the sealing rubber pad (7) has a cross-shaped structure. The elastic element (6) includes a bracket (601) fixedly connected to the inner wall of the water outlet pipe (501), a telescopic spring (602) fixed in the middle of the bracket (601), and an elastic plate (603) fixed at the bottom of the telescopic spring (602). When the water outlet pipe (501) is closed, the elastic plate (603) fits against the upper middle of the notch (701), and the notches (701) fit tightly together. When the water outlet pipe (501) is opened, the elastic plate (603) and the sealing rubber pad (7) are lifted by the telescopic top block (8), and the notches (701) are separated by a certain gap for water to flow through.

6. The paperboard forming machine side water-applying structure as described in claim 1, characterized in that: The upper end of the top rod (801) is fixed to the telescopic top block (8), and the lower end of the top rod (801) slides through to the bottom of the water injection pipe (4) and is fixedly connected to a handle (802). A telescopic plate (804) is sleeved and fixed to the lower side wall of the top rod (801). Both ends of the telescopic plate (804) are fixed with support springs (803). The top of the support springs (803) is fixedly connected to the bottom of the water injection pipe (4) to achieve elastic support for the telescopic top block (8).

7. The paperboard forming machine side water-applying structure as described in claim 1, characterized in that: The back of the water injection box (1) is fixedly connected to an installation plate (103), and the installation plate (103) has evenly distributed installation holes.

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