Roller coater knife holder mechanism with negative pressure cleaning function

Abstract

The utility model discloses a roll coater knife rest mechanism with negative pressure cleaning function, including the guide rail of knife rest, the inside of knife rest is equipped with the guide rail, the outside installation negative pressure cleaning agitator of guide rail, the inside of negative pressure cleaning agitator is equipped with negative pressure cleaning pipeline, one side of negative pressure cleaning pipeline is equipped with pneumatic conveyer, one end of pneumatic conveyer is equipped with water vapor mouth. This roll coater knife rest mechanism with negative pressure cleaning function, through installing high pressure cleaning in the inside of knife rest body, finally negative pressure cleaning agitator moves left and right along the guide rail in the range of the axial direction limitation of finishing roll under the effect of speed reducer and synchronous belt, can carry out leather finishing operation, will not damage finishing roll when cleaning, and surface dry is not easy to rust, improves the service life, saves water and energy, has no pollution, saves the cost, still does not exist to the potential damage of other parts of machine.

Description

Technical Field

[0001] This utility model belongs to the technical field of roller coating equipment, and in particular relates to a roller coating machine blade holder mechanism with negative pressure cleaning function. Background Technology

[0002] The roller coating machine's blade holder moves forward or backward under the drive of cylinders at both ends, moving closer to or further away from the coating roller. A chemical tank is formed between the scraper blade and the coating roller. The chemical is transported into the chemical tank via a diaphragm pump along the conveying pipe and the conveying pipe on the mixing device. Finally, the mixing device moves left and right within a limited range along the rodless cylinder to mix the chemical, allowing the coating operation to be performed. This blade holder only has the functions of conveying and mixing the chemical.

[0003] The blade holder mechanism of the roller coating machine currently on the market has the following problems when applied:

[0004] 1. Traditional roller coating machine blade holder mechanisms require an additional water hose for cleaning the coating roller. Operators hold the hose and clean the coating roller axially. This is labor-intensive, time-consuming, and incomplete. Furthermore, water can splash onto other machine parts, posing potential damage risks such as water ingress into bearings affecting transmission, water ingress into electronic components causing leakage or protection failure, rusting of machine surfaces, and jamming of cylinder piston rods. Therefore, it does not have a negative pressure cleaning function.

[0005] 2. When most roller coating machine blade holder mechanisms are in use, there is a risk of damaging the surface texture of the coating roller when the operator manually cleans the blade holder mechanism, resulting in high replacement costs and subsequent impact on production efficiency. Therefore, the cleaning efficiency is low during use.

[0006] 3. In most roller coating machine blade holder mechanisms, residual chemicals on the surface of the coating roller and in the grooves are often not thoroughly cleaned during application, which directly affects the coating effect of leather, requiring secondary rework or even scrapping. Therefore, the maintenance cost is high during application. Utility Model Content

[0007] The purpose of this utility model is to provide a roller coating machine blade holder mechanism with negative pressure cleaning function to solve the technical problems mentioned in the background art.

[0008] To achieve the above objectives, the specific technical solution of this utility model is as follows: A roller coating machine blade holder mechanism with negative pressure cleaning function includes a blade holder and a guide rail. The guide rail is provided inside the blade holder, and a negative pressure cleaning and stirring device is installed on the outside of the guide rail. A negative pressure cleaning pipe is provided inside the negative pressure cleaning and stirring device. A pneumatic conveyor is provided on one side of the negative pressure cleaning pipe. A water vapor port is provided at one end of the pneumatic conveyor, and an air inlet is provided on the outside of the pneumatic conveyor. A negative pressure water vapor suction port is provided on one side of the negative pressure water vapor suction port. A base plate is provided below the negative pressure water vapor suction port. A chemical material pipe and a water vapor cleaning pipe are provided on the top of the base plate. A chemical material inlet is provided on one side of the chemical material pipe, and a chemical material outlet is provided on the other side of the chemical material pipe. A water vapor inlet is provided on one side of the water vapor cleaning pipe, and a water vapor outlet is provided on the other side of the water vapor cleaning pipe.

[0009] Preferably, the guide rail is provided with a clamping plate on the outside, a mounting plate on the outside of the clamping plate, a mounting bracket on the outside of the mounting plate, a synchronous belt on the inside of the mounting plate, a geared motor sleeved on the outside of the synchronous belt, a fixing plate on the outside of the synchronous belt, a base plate mounted on the top of the fixing plate, a limiting bracket on the top of the base plate, and a limiting rod on the inside of the limiting bracket.

[0010] Preferably, the limiting frame has a vertical plate on its outer side, a clamping seat on its inner side, a negative pressure cleaning pipe embedded inside the clamping seat, a top plate on the top of the vertical plate, and a handle installed on the top of the top plate.

[0011] Preferably, the mounting plate and mounting bracket have mounting holes inside, the fixing plate has circular holes inside, the top of the base plate has a strip plate, and the strip plate has mounting grooves inside.

[0012] Preferably, a mounting angle plate is provided on one side of the vertical plate, a second connecting strip is provided inside the mounting angle plate, a first connecting strip is provided at the bottom of the synchronous belt, and a tool holder is provided at one end of the first connecting strip.

[0013] Preferably, the outer side of the tool holder is provided with a housing, the bottom of the housing is provided with a connecting plate, and the outer side of the connecting plate is provided with a frame.

[0014] Preferably, a cylinder is provided on the outer side of the connecting plate, and a piston rod is provided on the side of the cylinder. There are two sets of cylinders and piston rods.

[0015] Preferably, a scraper is provided on the outer side of the guide rail, and housings are provided on both sides of the scraper.

[0016] The roller coating machine blade holder mechanism with negative pressure cleaning function of this utility model has the following advantages:

[0017] 1. This roller coating machine blade holder mechanism with negative pressure cleaning function, by installing high-pressure cleaning inside the blade holder body, high-pressure jet inside, and negative pressure water vapor suction on the side, facilitates thorough cleaning of the coating roller. The blade holder moves forward or backward under the drive of cylinders at both ends, moving closer or further away from the coating roller. A chemical tank is formed between the scraper and the coating roller. The chemical material enters through the chemical material inlet of the chemical material pipeline on the negative pressure cleaning and stirring device via a diaphragm pump, and enters the chemical material tank through the chemical material outlet. Finally, the negative pressure cleaning and stirring device moves left and right along the guide rail within the limited range of the coating roller axial direction under the action of a reduction motor and synchronous belt, so that leather coating operation can be carried out. The coating roller will not be damaged during cleaning, and the surface is dry and not easy to rust, which improves the service life, saves water and energy, is pollution-free, saves costs, and does not cause potential damage to other parts of the machine.

[0018] 2. This roller coating machine blade holder mechanism with negative pressure cleaning function achieves automated cleaning by installing a negative pressure cleaning and stirring device on the outside of the guide rail and synchronous belt. No manual operation is required. After the equipment is started, intelligent cleaning is achieved, which has high cleaning efficiency. Moreover, if a failure occurs later, it is not necessary to completely dismantle the blade holder mechanism. Only the negative pressure cleaning and stirring device needs to be removed from the outside of the synchronous belt. It uses modular design, which makes it convenient to assemble and maintain during use.

[0019] 3. The roller coating machine blade holder mechanism with negative pressure cleaning function is provided by installing a chemical pipeline on the top of the base plate, with a chemical inlet on one side of the chemical pipeline and a chemical outlet at the other end, which facilitates color change. First, the machine is thoroughly cleaned with water and steam, and then the chemical is conveyed from the chemical inlet to the inside of the chemical pipeline to meet the color change operation and ensure the coating effect. Finally, the chemical is discharged from the chemical outlet. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the connecting plate structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the water vapor cleaning pipeline structure of this utility model;

[0024] Figure 4This is a schematic diagram of the negative pressure water vapor suction port structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the card plate structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the air inlet structure of this utility model.

[0027] Explanation of markings in the diagram: 1. Knife holder; 2. Negative pressure cleaning and stirring device; 3. Guide rail; 4. Synchronous belt; 5. Gear motor; 6. Scraper; 7. Cylinder; 8. Piston rod; 9. Negative pressure cleaning pipeline; 10. Pneumatic conveyor; 11. Water and steam inlet; 12. Air inlet; 13. Negative pressure water and steam suction port; 14. Chemical pipeline; 15. Chemical inlet; 16. Chemical outlet; 17. Water and steam cleaning pipeline; 18. Water and steam inlet; 19. Water and steam... Export; 20. Pallet; 21. Mounting plate; 22. Mounting bracket; 23. Fixing plate; 24. Mounting hole; 25. Circular hole; 26. Base plate; 27. Vertical plate; 28. Top plate; 29. ​​Handle; 30. Limiting bracket; 31. Limiting rod; 32. Mounting groove; 33. First connecting strip; 34. Second connecting strip; 35. Mounting corner plate; 36. Clamping seat; 37. Housing; 38. Connecting plate; 39. Strip plate; 40. Frame. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0029] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and 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 the embodiments of this utility model.

[0030] Furthermore, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0032] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0033] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a roller coating machine blade holder mechanism with negative pressure cleaning function.

[0034] like Figure 1-6As shown, this utility model discloses a roller coating machine blade holder mechanism with negative pressure cleaning function, including a blade holder 1 and a guide rail 3. The guide rail 3 is installed inside the blade holder 1. Due to the installation of the guide rail 3, the negative pressure cleaning and stirring device 2 can be easily moved left and right within a limited range. The negative pressure cleaning and stirring device 2 is installed on the outside of the guide rail 3. The negative pressure cleaning and stirring device 2 has a negative pressure cleaning pipe 9 inside. A pneumatic conveyor 10 is provided on one side of the negative pressure cleaning pipe 9. A water vapor port 11 is provided at one end of the pneumatic conveyor 10. An air inlet 12 is provided on the outside of the pneumatic conveyor 10. A negative pressure water vapor suction port 13 is provided on one side of the negative pressure cleaning pipe 9. A base plate 26 is provided below the negative pressure water vapor suction port 13. A chemical material pipe 14 and a water vapor cleaning pipe 17 are provided on the top of the base plate 26. A chemical material inlet 15 is provided on one side of the chemical material pipe 14. On the other side of the chemical cleaning pipe 14, there is a chemical outlet 16. On one side of the water vapor cleaning pipe 17, there is a water vapor inlet 18, and on the other side of the water vapor cleaning pipe 17, there is a water vapor outlet 19. By installing high-pressure cleaning inside the body of the knife holder 1, and installing high-pressure jet inside, and installing negative pressure suction on the side, the knife holder 1 moves forward or backward under the drive of the cylinders 7 at both ends, so as to move closer to or away from the coating roller. A chemical tank is formed between the scraper 6 and the coating roller. The chemical material enters through the chemical inlet 15 of the chemical pipe 14 on the negative pressure cleaning and stirring device 2 through the diaphragm pump, and enters into the chemical tank through the chemical outlet 16. The coating roller will not be damaged during cleaning, and the surface is dry and not easy to rust, which improves the service life, saves water and energy, is pollution-free, saves costs, and does not cause potential damage to other parts of the machine.

[0035] The guide rail 3 is provided with a clamping plate 20 on the outside, a mounting plate 21 on the outside of the clamping plate 20, a mounting bracket 22 on the outside of the mounting plate 21, a synchronous belt 4 on the inside of the mounting plate 21, a geared motor 5 is sleeved on the outside of the synchronous belt 4, a fixing plate 23 is provided on the outside of the synchronous belt 4, a base plate 26 is installed on the top of the fixing plate 23, a limiting bracket 30 is provided on the top of the base plate 26, and a limiting rod 31 is provided on the inside of the limiting bracket 30. Due to the installation of the synchronous belt 4 and the geared motor 5, the negative pressure cleaning and stirring device 2 can move left and right along the guide rail 3 within the limited range of the coating roller axial direction under the action of the geared motor 5 and the synchronous belt 4, so that leather coating operation can be carried out.

[0036] The limit frame 30 has a vertical plate 27 on the outside and a clamping seat 36 on the inside. The clamping seat 36 is inlaid with a negative pressure cleaning pipe 9. The top of the vertical plate 27 has a top plate 28 and a handle 29 is installed on the top of the top plate 28. Because of the handle 29, if the negative pressure cleaning and stirring device 2 fails later, the top cover can be opened by holding the handle 29 for easy maintenance.

[0037] Mounting holes 24 are provided inside the mounting plate 21 and mounting bracket 22, and circular holes 25 are provided inside the fixing plate 23. A strip plate 39 is provided on the top of the base plate 26, and mounting groove 32 is provided inside the strip plate 39. Because of the mounting holes 24 and circular holes 25, it is convenient to use fasteners to fix the mounting plate 21, mounting bracket 22 and fixing plate 23.

[0038] A mounting angle plate 35 is provided on one side of the vertical plate 27. A second connecting strip 34 is provided inside the mounting angle plate 35. A first connecting strip 33 is provided at the bottom of the synchronous belt 4. A knife holder 1 is provided at one end of the first connecting strip 33. By providing the mounting angle plate 35 and the second connecting strip 34, it is convenient to install and fix the negative pressure cleaning and stirring device 2 on the outside of the synchronous belt 4.

[0039] The outer side of the tool holder 1 is provided with a housing 37, the bottom of the housing 37 is provided with a connecting plate 38, and the outer side of the connecting plate 38 is provided with a frame 40. Due to the installation of the connecting plate 38, it is convenient to use fasteners to install the cylinder 7 on the side of the housing 37.

[0040] A cylinder 7 is provided on the outer side of the connecting plate 38, and a piston rod 8 is provided on the side of the cylinder 7. There are two sets of cylinders 7 and piston rods 8. Due to the installation of cylinders 7 and piston rods 8, the knife holder 1 can move forward or backward under the drive of the cylinders 7 at both ends, so as to move closer to or away from the coating roller. A material trough is formed between the scraper 6 and the coating roller.

[0041] A scraper 6 is provided on the outer side of the guide rail 3, and housings 37 are provided on both sides of the scraper 6. The scraper 6 is provided to hang up excess dye.

[0042] The working principle of the roller coating machine knife holder mechanism with negative pressure cleaning function is as follows: When using this mechanism, the knife holder 1 first needs to be moved to a suitable position. After it is moved to a suitable position, it can be placed on top of the mechanism. Then, multiple sets of fasteners are used to install the knife holder 1 mechanism. However, in order to facilitate automated cleaning, a cleaning function is installed inside the knife holder 1. First, the clamping plate 20 is initially installed on the outside of the guide rail 3 with fasteners. Then, the mounting plate 21 on the outside of the fixing plate 23 is fixed to the mounting frame 22 with fasteners. Then, the base plate 26 is fixed on the top of the mounting frame 22. Then, the negative pressure cleaning structure is installed on the top of the base plate 26, and a limit frame 30 is installed to facilitate the limit rod 31 to control the pneumatic conveyor 10 and water vapor. The cleaning pipe 17 is fixed in position, and then fasteners are used to install it on the side of the second connecting strip 34. This allows the negative pressure cleaning structure to be installed inside the blade holder 1. When the operator cleans the roller coating inside the blade holder 1, the chemical control is first injected into the chemical tank, and air is introduced through the diaphragm pump. Then the chemical flows from the chemical inlet 15 to the diaphragm pump, and is cleaned by the negative pressure cleaning agitator 2. After cleaning, the chemical outlet 16 flows back to the chemical tank. At this time, the negative pressure cleaning agitator 2 moves left and right along the track on the blade holder 1 under the combined action of the reduction motor 5 and the synchronous belt 4 to agitate the chemical, ensuring that the chemical in the chemical tank does not accumulate and solidify, thus meeting the requirements of the coating operation. The principle of the negative pressure cleaning coating roller control is that the first step is to use tap water... After being pressurized by a pneumatic three-way valve and a booster pump, compressed air from the air source enters the triplet unit. The compressed air then enters the pneumatic three-way valve through the first air inlet 12 and the second air outlet 12 on the side of the first solenoid valve. The pneumatic three-way valve then activates, opening the first and third switching ports. This changes the operation of the solenoid ball valve, allowing tap water to flow into it and actuating the pneumatic three-way valve inside. At this point, the first and third switching ports are open. During the energization process, the booster pump supplies water to the water inlet or air inlet 12 of the negative pressure cleaning and stirring device 2. Then, high-pressure mist spraying is activated, forming a high-pressure water mist to wash the surface of the coating roller and the residual chemicals in the surface grooves. Simultaneously, the negative pressure cleaning and stirring device 2, under the action of the reduction motor 5 and the synchronous belt 4, moves along... The guide rail 3 moves left and right within the axial direction of the coating roller, effectively cleaning the roller. After cleaning, compressed air passes through a pneumatic three-way valve to the water vapor inlet 18 and outlet 19 of the water vapor cleaning pipe 17 on the negative pressure cleaning and stirring device 2, forming high-pressure gas that blows away water from the coating roller surface, atomizing it. Simultaneously, the negative pressure cleaning and stirring device 2, under the action of the reduction motor 5 and synchronous belt 4, moves left and right along the guide rail 3 within the axial direction of the coating roller, atomizing the water on the coating roller surface. Finally, while the water atomization continues, compressed air enters through the air inlet 12 of the negative pressure cleaning pipe 9 on the negative pressure cleaning and stirring device 2, forming high-pressure suction at the negative pressure water vapor port 11 of the pneumatic conveyor 10.At this time, the water mist on the surface of the coating roller will be discharged through the negative pressure water vapor suction port 13 of the negative pressure cleaning pipe 9 and the negative pressure water vapor outlet 19. Simultaneously, the negative pressure cleaning and stirring device 2, under the action of the reduction motor 5 and the synchronous belt 4, moves left and right along the guide rail 3 within a limited range in the axial direction of the coating roller, thus sucking away the water mist on the surface of the coating roller, ensuring that the surface of the coating roller is clean. This meets the requirements for color change operations, does not affect the coating effect, or prevents rusting even after long-term storage, ensuring that the surface of the coating roller is free of water and basically dry. Most importantly, it ensures that there is no residual chemical material in the grooves on the surface of the coating roller, which would affect the coating effect. The above operation steps can be repeated until the surface of the coating roller is thoroughly cleaned, ensuring the coating effect and extending the service life of the coating roller.

[0043] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A roller coating machine blade holder mechanism with negative pressure cleaning function, comprising a blade holder (1) and a guide rail (3), wherein the guide rail (3) is provided inside the blade holder (1), characterized in that: A negative pressure cleaning and stirring device (2) is installed on the outside of the guide rail (3). A negative pressure cleaning pipe (9) is provided inside the negative pressure cleaning and stirring device (2). A pneumatic conveyor (10) is provided on one side of the negative pressure cleaning pipe (9). A water vapor port (11) is provided at one end of the pneumatic conveyor (10). An air inlet (12) is provided on the outside of the pneumatic conveyor (10). A negative pressure water vapor suction port (13) is provided on one side of the negative pressure cleaning pipe (9). A base plate (26) is provided below the negative pressure water vapor suction port (13). A chemical material pipe (14) and a water vapor cleaning pipe (17) are provided on the top of the base plate (26). A chemical material inlet (15) is provided on one side of the chemical material pipe (14). A chemical material outlet (16) is provided on the other side of the chemical material pipe (14). A water vapor inlet (18) is provided on one side of the water vapor cleaning pipe (17). A water vapor outlet (19) is provided on the other side of the water vapor cleaning pipe (17).

2. The roller coating machine blade holder mechanism with negative pressure cleaning function according to claim 1, characterized in that: The guide rail (3) is provided with a clamping plate (20) on the outside, a mounting plate (21) is provided on the outside of the clamping plate (20), a mounting bracket (22) is provided on the outside of the mounting plate (21), a synchronous belt (4) is provided on the inside of the mounting plate (21), a geared motor (5) is sleeved on the outside of the synchronous belt (4), a fixing plate (23) is provided on the outside of the synchronous belt (4), a base plate (26) is installed on the top of the fixing plate (23), a limiting bracket (30) is provided on the top of the base plate (26), and a limiting rod (31) is provided on the inside of the limiting bracket (30).

3. The roller coating machine blade holder mechanism with negative pressure cleaning function according to claim 2, characterized in that: The limiting frame (30) has a vertical plate (27) on its outer side, a clamping seat (36) on its inner side, a negative pressure cleaning pipe (9) embedded inside the clamping seat (36), a top plate (28) on the top of the vertical plate (27), and a handle (29) installed on the top of the top plate (28).

4. The roller coating machine blade holder mechanism with negative pressure cleaning function according to claim 2, characterized in that: The mounting plate (21) and mounting bracket (22) have mounting holes (24) inside, the fixing plate (23) has a circular hole (25) inside, the bottom plate (26) has a strip plate (39) on top, and the strip plate (39) has a mounting groove (32) inside.

5. The roller coating machine blade holder mechanism with negative pressure cleaning function according to claim 3, characterized in that: The vertical plate (27) has a mounting angle plate (35) on one side, and the mounting angle plate (35) has a second connecting strip (34) inside. The bottom of the synchronous belt (4) has a first connecting strip (33), and one end of the first connecting strip (33) has a knife holder (1).

6. The roller coating machine blade holder mechanism with negative pressure cleaning function according to claim 1, characterized in that: The tool holder (1) has a housing (37) on its outer side, a connecting plate (38) at the bottom of the housing (37), and a frame (40) on the outer side of the connecting plate (38).

7. The roller coating machine blade holder mechanism with negative pressure cleaning function according to claim 6, characterized in that: A cylinder (7) is provided on the outer side of the connecting plate (38), and a piston rod (8) is provided on the side of the cylinder (7). There are two sets of cylinders (7) and piston rods (8).

8. The roller coating machine blade holder mechanism with negative pressure cleaning function according to claim 1, characterized in that: The guide rail (3) is provided with a scraper (6) on the outside, and the scraper (6) is provided with housings (37) on both sides.

Images