Overflow glue cleaning device for offset print

Abstract

The utility model provides an overflowed glue cleaning device for offset printing products, which belongs to the technical field of overflowed glue cleaning for offset printing products, and comprises a handheld part, a solvent coating part and a scraper part, the handheld part comprises a connecting rod and a handle, the handle is of a door-like structure, the connecting rod is connected with the solvent coating part, and the scraper part is connected with the solvent coating part. The handle is fixed at the central position of the connecting rod; the solvent coating part and the scraper part are fixed to the two rods, away from the handle, of the connecting rod respectively, and the solvent coating part is perpendicular to the offset print and used for coating a solvent to soften overflowing glue before the scraper part cleans the overflowing glue; an angle is formed between the scraper part and the offset printing product, and the scraper part is used for scraping excessive glue at the edge position of the offset printing product; the problems that the surface of an existing offset printing product becomes hard after excessive glue is dried, the surface is damaged when the excessive glue is cleaned through a common excessive glue cleaning device, and the cleaning effect is poor can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of glue overflow cleaning of offset printing products, and in particular relates to a glue overflow cleaning device for offset printing products. Background Art

[0002] Offset printing is a common printing method, also known as gravure printing. In this printing process, the image is transferred to a rubber blanket or rubber plate (called a printing plate), and then the printing is completed by transferring ink to the surface of the desired printing material (such as paper, plastic, metal, etc.). This printing method is widely used in the production of printed materials such as books, magazines, newspapers, and brochures. Glue overflow in offset printing refers to a problem that occurs during the offset printing process, that is, the ink exceeds the area required for the design during printing, resulting in excess ink on the edges or other parts of the printed product. This may affect the quality and aesthetics of the printed product and needs to be solved by adjusting the printing machine settings, ink viscosity, or plate treatment. The devices used to clean up glue overflow in offset printing are usually called glue overflow cleaning systems or glue overflow cleaning devices. These devices are designed to effectively remove excess ink that may overflow or accumulate on the surface of the printing plate or printed material during the printing process.

[0003] The surface of existing offset printed products becomes hard after the overflow glue dries. Cleaning with a common overflow glue cleaning device will cause damage to the surface and the cleaning effect is poor. Utility Model Content

[0004] In view of this, the utility model provides an overflow glue cleaning device for offset printed products, which can solve the problem that the surface of existing offset printed products becomes hard after the overflow glue dries, and cleaning with a commonly used overflow glue cleaning device will cause damage to the surface and result in poor cleaning effect.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a device for cleaning overflow glue for offset printed matter, which comprises a hand-held portion, a solvent coating portion and a scraper portion, wherein the hand-held portion comprises a connecting rod and a handle, the handle is a door-shaped structure, and the handle is fixed at the center of the connecting rod; two rods of the connecting rod away from the handle are respectively fixed with the solvent coating portion and the scraper portion, the solvent coating portion is vertically arranged with the offset printed matter, and is used for coating solvent to soften the overflow glue before the scraper portion cleans the overflow glue; the scraper portion is arranged at an angle with the offset printed matter, and is used for scraping off the overflow glue at the edge of the offset printed matter.

[0007] On the basis of the above technical solution, the overflow glue cleaning device for offset printing of the utility model can also be improved as follows:

[0008] Among them, the solvent coating part includes a shell, a liquid inlet and a liquid outlet. The shell is a square structure. The side of the shell is fixedly connected to the connecting rod, and the top is provided with the liquid inlet. The liquid inlet is used to add solution into the shell; the liquid outlet is arranged on the side of the shell away from the connecting rod, and is used to output the solvent to the position where it contacts the offset printed matter.

[0009] Furthermore, the liquid outlets include a plurality of outlets, which are respectively vertically arranged at the same side of the shell.

[0010] Furthermore, each of the liquid outlets is provided with a ball, and the ball is used to quantitatively output the solvent.

[0011] Furthermore, the scraper portion includes a scraping surface and a connecting surface. The scraping surface is an arc-shaped structure and abuts against the offset printed product. The connecting surface is integrally arranged with the scraping surface, and the side away from the scraping surface is fixedly connected to the connecting rod.

[0012] Furthermore, the rubber scraping surface is made of polyurethane material.

[0013] Furthermore, an electrostatic ring is arranged on the side of the liquid outlet, and the electrostatic ring is used to make the solvent output from the liquid outlet to the offset printed matter position carry static electricity so as to be adsorbed on the offset printed matter.

[0014] Furthermore, the solvent in the shell is a plate-cleaning liquid.

[0015] Plate washer is a solvent specially used for cleaning overflow glue and cleaning printing machine parts in offset printing. Its main function is to quickly dissolve the resin, pigment and other chemical components in the overflow glue on the surface of offset printing products so as to effectively clean them and ensure the quality of printed products and the normal operation of the printing machine.

[0016] The ingredients of plate washing liquid usually include the following categories:

[0017] Organic solvents: Organic solvents such as alcohols, esters, ketones, etc. have good solubility and can quickly dissolve resins and pigments.

[0018] Surfactants: Used to help solvents mix better with ink ingredients, allowing for more effective cleaning of printing plates and machinery parts.

[0019] Stabilizers and preservatives: used to maintain the stability of the plate washing solution and prevent decomposition or contamination during storage and use.

[0020] Water: In some plate washing solutions, an appropriate amount of water may be added to adjust the solvent concentration and cleaning effect.

[0021] The selection of plate washing liquid usually takes into account factors such as the type of printing ink, the material of the printed surface, the frequency of cleaning, and environmental and operational safety. Correct selection and use of plate washing liquid can significantly improve the quality of printed products and the efficiency of the printing press, while ensuring the safety of the environment and operators.

[0022] Furthermore, the projection lengths of the solvent coating portion and the scraper portion on the horizontal plane are the same.

[0023] Furthermore, the connecting rod and the handle are arranged at an angle of 30°, and threads are arranged on the surface of the handle, and the threads are used to increase the friction between the handle and the hand.

[0024] The beneficial effect of adopting the above-mentioned improvement scheme is that the handle adopts a door-like structure and is fixed at the center position of the connecting rod. This design helps the operator to hold the device stably and perform cleaning operations.

[0025] The solvent coating part includes a square-shaped housing, the side of which is fixed on the connecting rod. There is a liquid inlet on the top of the housing for injecting solvent (such as plate washing liquid). The solvent is discharged from the liquid outlet, which is multiple and vertically arranged on the same side of the housing. A ball is arranged in each liquid outlet for quantitatively discharging the solvent. An electrostatic ring is arranged on the side of the liquid outlet, which can make the solvent carry electrostatic particles to be adsorbed on the offset printed matter, thereby enhancing the cleaning effect and accuracy.

[0026] The scraper part is set at an angle with the offset printed product to scrape off the excess glue at the edge. The scraper part includes an arc-shaped scraping surface made of polyurethane material, which helps to effectively remove the excess glue.

[0027] The connection surface of the scraper part is integrated with the rubber scraping surface to ensure stability and operating efficiency.

[0028] Plate cleaning liquid is used as a solvent in the shell to improve the cleaning effect.

[0029] The projection lengths of the solvent coating part and the scraper part on the horizontal plane are the same, ensuring balanced and precise operation.

[0030] The connecting rod and the handle are set at a 30° angle, and the threaded design on the handle surface increases the friction when holding, making the operation more stable and comfortable.

[0031] Compared with the prior art, the beneficial effects of the overflow glue cleaning device for offset printing provided by the utility model are:

[0032] Connecting rod and handle: The connecting rod is fixed in the center by a door-shaped handle. This design helps the operator maintain good control and comfort when cleaning up the glue spill.

[0033] Solvent coating section: It includes a square shell, whose side is connected to the connecting rod and the top is provided with a liquid inlet. The solution, usually the plate washing liquid, is injected into the shell. The solvent coating section is located in the vertical direction of the offset printed product and is responsible for applying the solvent before the scraper is cleaned to soften the overflowed glue for subsequent removal.

[0034] Scraper: It includes a scraping surface and a connecting surface. The scraping surface is arc-shaped and contacts the overflow glue at the edge of the offset printed product. The scraper is set at an angle to the offset printed product to scrape off the overflow glue. The scraping surface is usually made of polyurethane material, which is suitable for effectively removing ink or overflow glue on the offset printing machine.

[0035] The liquid outlet is arranged on one side of the housing and is used to output the solvent to the position where the offset printed product contacts.

[0036] Multiple liquid outlets: vertically arranged on the same side of the shell, each liquid outlet is provided with a ball for quantitatively outputting the solvent.

[0037] Electrostatic ring: An electrostatic ring is provided on the side of the liquid outlet to help the solvent carry static electricity so that it can be adsorbed on the offset printed matter and enhance the cleaning effect.

[0038] Angle setting: The connecting rod and the handle are set at a 30° angle, and the handle surface is provided with threads to increase the friction with the hand, improving the operating comfort and controllability. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 It is a structural schematic diagram of an overflow glue cleaning device for offset printing products;

[0041] Figure 2 It is a structural schematic diagram of a solvent coating unit;

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] 10. Hand-held part; 11. Connecting rod; 12. Handle; 20. Solvent coating part; 21. Shell; 22. Liquid inlet; 23. Liquid outlet; 30. Scraper part; 31. Glue scraping surface; 32. Connecting surface. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0045] like Figure 1-2 As shown, an embodiment of a device for cleaning overflow glue for offset printed products provided by the utility model is shown. In this embodiment, the device comprises a hand-held portion 10, a solvent coating portion 20 and a scraper portion 30. The hand-held portion 10 comprises a connecting rod 11 and a handle 12. The handle 12 is a door-shaped structure, and the handle 12 is fixed at the center position of the connecting rod 11. The two rods of the connecting rod 11 away from the handle 12 are respectively fixed with the solvent coating portion 20 and the scraper portion 30. The solvent coating portion 20 is arranged perpendicular to the offset printed product, and is used for coating the solvent to soften the overflow glue before the scraper portion 30 cleans the overflow glue. The scraper portion 30 is arranged at an angle to the offset printed product, and is used for scraping off the overflow glue at the edge of the offset printed product.

[0046] Among them, in the above technical scheme, the solvent coating part 20 includes a shell 21, a liquid inlet 22 and a liquid outlet 23. The shell 21 is a square structure. The side of the shell 21 is fixedly connected to the connecting rod 11, and a liquid inlet 22 is opened on the top. The liquid inlet 22 is used to add the solution into the shell 21; the liquid outlet 23 is arranged on the side of the shell 21 away from the connecting rod 11, and is used to output the solvent to the position where it contacts the offset printed matter.

[0047] Furthermore, in the above technical solution, the liquid outlet 23 includes a plurality of liquid outlets 23 , which are respectively vertically arranged at the same side of the shell 21 .

[0048] Furthermore, in the above technical solution, each liquid outlet 23 is provided with a ball, and the ball is used to quantitatively output the solvent.

[0049] Furthermore, in the above technical solution, the scraper portion 30 includes a scraping surface 31 and a connecting surface 32. The scraping surface 31 is an arc-shaped structure and abuts against the offset printed product; the connecting surface 32 is integrally arranged with the scraping surface 31, and the side away from the scraping surface 31 is fixedly connected to the connecting rod 11.

[0050] Furthermore, in the above technical solution, the rubber scraping surface 31 is made of polyurethane material.

[0051] Furthermore, in the above technical solution, an electrostatic ring is provided on the side of the liquid outlet 23, and the electrostatic ring is used to make the solvent output from the liquid outlet 23 to the offset printed matter position carry static electricity so as to be adsorbed on the offset printed matter.

[0052] Furthermore, in the above technical solution, the solvent in the housing 21 is a plate cleaning liquid.

[0053] Furthermore, in the above technical solution, the projection lengths of the solvent coating part 20 and the scraper part 30 on the horizontal plane are the same.

[0054] Furthermore, in the above technical solution, the connecting rod 11 and the handle 12 are arranged at an angle of 30°, and a thread is arranged on the surface of the handle 12, and the thread is used to increase the friction between the handle 12 and the hand.

[0055] Solvent coating department:

[0056] Structure and function: The solvent coating part of the device includes a square shell with a liquid inlet on the top. The shell is filled with plate washing liquid or other cleaning solvent. When the operator places the liquid inlet above the overflowing glue position that needs to be cleaned, the cleaning solvent will flow out from the top of the shell and evenly cover the overflowing glue area through the design of the shell.

[0057] Function: The application of cleaning solvent softens the overflow glue, making it soft and easy to handle. This solvent can effectively decompose and dissolve the ink and overflow glue on the offset printing machine.

[0058] Scraper part:

[0059] Structure and function: The scraper is designed to be at an angle to the surface of the offset printed product. The scraping surface is usually curved and made of materials such as polyurethane. This design enables the scraper to effectively scrape off excess glue and residual ink without damaging the surface of the printed product.

[0060] Function: The operator controls the position and movement of the scraper through the handheld part to scrape off the overflowed glue softened by the solvent from the printed matter. The design of the scraper ensures that the printed matter will not be damaged while cleaning.

[0061] Overall working principle:

[0062] The operator first applies a cleaning solvent to the glue overflow area that needs to be cleaned to soften the glue overflow.

[0063] Then, use the angle between the scraping surface of the scraper and the printed surface to scrape off the softened overflow glue with appropriate force and action.

[0064] After scraping, the liquid outlet of the solvent coating part ensures that the residual solvent and overflowed glue are effectively cleaned and adsorbed, thus completing the entire cleaning process.

[0065] Specifically, the principle of the utility model is: when in use, ensure that the solvent coating part has been injected with plate washing liquid or other cleaning solvent, and ensure that the scraping surface of the scraper part is clean and intact. Hold the handle of the handheld part firmly to ensure that the connecting rod is stable. The gate-shaped structure designed for the handheld part helps to provide a comfortable grip for the operator. The liquid inlet on the top of the shell of the solvent coating part is placed above the overflowing glue position that needs to be cleaned. Add an appropriate amount of cleaning solvent into the shell through the liquid inlet on the top of the shell. The design of the coating part allows the cleaning solvent to evenly cover the overflowing glue area, soften the overflowing glue, and make it easier to be removed by the subsequent scraper part. While the solvent is being coated, the scraper part cleans the part that has been coated with the solvent. The scraping surface of the scraper part gently touches the edge of the overflowing glue part. Ensure that the scraper part is set at an appropriate angle to the offset printed product. Use the control of the handheld part to move the scraper part with appropriate force and angle to scrape off the overflowing glue. The arc-shaped scraping surface design of the scraper part helps to effectively remove the overflowing glue, and the selection of polyurethane material can adapt to different types of overflowing glue and ink.

Claims

1. A device for cleaning overflow glue for offset printing, characterized in that: The invention comprises a hand-held part (10), a solvent coating part (20) and a scraper part (30), wherein the hand-held part (10) comprises a connecting rod (11) and a handle (12), wherein the handle (12) is a door-shaped structure, and the handle (12) is fixed at the center of the connecting rod (11); two rods of the connecting rod (11) away from the handle (12) are respectively fixed with the solvent coating part (20) and the scraper part (30); the solvent coating part (20) is arranged perpendicular to the offset printed matter, and is used for coating solvent to soften the overflowed glue before the scraper part (30) cleans the overflowed glue; the scraper part (30) is arranged at an angle to the offset printed matter, and is used for scraping off the overflowed glue at the edge of the offset printed matter.

2. The device for cleaning the overflowed glue for offset printing according to claim 1, characterized in that: The solvent coating portion (20) comprises a shell (21), a liquid inlet (22) and a liquid outlet (23); the shell (21) is a square structure; the side of the shell (21) is fixedly connected to the connecting rod (11); the top of the shell is provided with the liquid inlet (22); the liquid inlet (22) is used to add solution into the shell (21); the liquid outlet (23) is arranged on a side of the shell (21) away from the connecting rod (11) and is used to output the solvent to a position in contact with the offset printed matter.

3. The device for cleaning the overflowed glue for offset printing according to claim 2, characterized in that: The liquid outlets (23) include a plurality of liquid outlets (23) which are respectively arranged vertically at the same side of the housing (21).

4. The device for cleaning the overflowed glue for offset printing according to claim 3, characterized in that: Each of the liquid outlets (23) is provided with a ball bearing, and the ball bearing is used for quantitatively outputting the solvent.

5. The device for cleaning the overflowed glue for offset printing according to claim 4, characterized in that: The scraper portion (30) comprises a rubber scraping surface (31) and a connecting surface (32); the rubber scraping surface (31) is in an arc-shaped structure and abuts against the offset printed matter; the connecting surface (32) is integrally arranged with the rubber scraping surface (31), and the side away from the rubber scraping surface (31) is fixedly connected to the connecting rod (11).

6. The device for cleaning the overflowed glue for offset printing according to claim 5, characterized in that: The rubber scraping surface (31) is made of polyurethane material.

7. The device for cleaning the overflowed glue for offset printing according to claim 6, characterized in that: An electrostatic ring is arranged on the side of the liquid outlet (23), and the electrostatic ring is used to make the solvent output from the liquid outlet (23) to the offset printed matter position carry static electricity so as to be adsorbed on the offset printed matter.

8. The device for cleaning the overflowed glue for offset printing according to claim 7, characterized in that: The solvent in the housing (21) is a plate-cleaning liquid.

9. The device for cleaning the overflowed glue for offset printing according to claim 8, characterized in that: The projection lengths of the solvent coating portion (20) and the scraper portion (30) on a horizontal plane are the same.

10. The device for cleaning the overflowed glue for offset printing according to claim 9, characterized in that: The connecting rod (11) and the handle (12) are arranged at an angle of 30°, and a thread is arranged on the surface of the handle (12), and the thread is used to increase the friction between the handle (12) and the hand.

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