Gravure scraper angle measuring device

Abstract

The utility model belongs to the technical field of printing equipment, and relates to a gravure scraper angle measuring device, which comprises a glue gun used for gluing at a contact point between a printing plate roller and a doctor blade, a separation blade group used for preventing hot melt glue from flowing out from two sides when the glue gun is used for gluing, a support rod and a protractor, the separation blade group is arranged on the glue gun, and the protractor is arranged on the support rod. One end of the supporting rod is hinged to the glue gun, the protractor is hinged to the other end of the supporting rod, and the protractor is fixed through the supporting rod. In the gluing process, the space between the printing plate roller and the doctor blade can be filled with hot melt glue through the separation blade set, so that a hot melt glue block is formed, and the measured angle is more accurate. When the gravure scraper angle measuring device is used, the positions of the supporting rod and the blocking piece set can be adjusted according to needs, space can be effectively utilized, and the whole gravure scraper angle measuring device is small in size and convenient to carry and store.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing and relates to a gravure scraper angle measuring device. Background Art

[0002] In the gravure printing process, the installation and adjustment of the scraper plays an important role in the appearance quality control of the printed product. The correct scraper angle can prevent foreign matter from entering and reduce problems such as fog, bright lines, knife wires, and cracks. Different scraper angles will affect the scraping cleanliness of the ink in the grooves of the printing plate mesh, resulting in changes in the amount of ink transfer, which ultimately manifests as color difference in the printed product. Therefore, the appropriate scraper angle can not only increase the service life of the scraper and the printing plate, but also play a vital role in the stability of batch color. For a long time, the setting of the scraper position and angle during gravure production has been entirely based on the experience of the workers. There is no tool to accurately measure the scraper angle, and the scraper angle parameters cannot be recorded, nor can they be used as a reference for troubleshooting gravure product quality problems.

[0003] The Chinese invention patent with the patent number CN201910912646.X and the name of a gravure scraper angle measurement discloses that the scraper angle is obtained by making the support plate tangent to the gravure roller at the scraper point, turning the rotating arm parallel to the scraper, and reading the angle data on the digital display screen. However, this technology has the problem of large measurement errors. Specifically, the tangency of the support plate and the gravure roller and the parallelism of the rotating arm and the scraper are difficult to achieve through manual operation, resulting in inaccurate data.

[0004] Patent No. CN202311033566.X discloses a Chinese invention patent named Angle Measuring Ruler for Scraper of Gravure Printing Machine. It discloses that by adjusting the first measuring ruler and the second measuring ruler to a vertical state, using the clamping connection between the clamping plate and the clamping slot, one end of the connecting plate is fixed to the outer wall of the rotating shaft, the position of the first measuring ruler is adjusted, and then the protractor is slid so that the origin of the protractor is placed at the intersection between the scraper and the plate roller, and the angle between the scraper and the ink roller can be measured by rotating the pointer parallel to the scraper. However, due to the limited space between the gravure plate roller and the scraper, the normal production process is to install the plate first and then adjust the blade. The gravure roller is directly nested with the printing press, and there is no place to fix the angle measuring ruler, so the scraper angle measurement cannot be achieved during the production process. Utility Model Content

[0005] The utility model aims to provide a gravure scraper angle measuring device to address the deficiencies of the prior art. The device can prevent the hot melt adhesive from being exposed sideways through a baffle group, and then measure the cooled hot melt adhesive through a protractor to measure the angle of the scraper. The device is easy to use.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A gravure scraper angle measuring device, comprising:

[0008] A glue gun used to apply glue at the contact point between the plate roller and the doctor blade;

[0009] A baffle plate group used to prevent hot melt adhesive from flowing out from both sides when the glue gun is gluing, wherein the baffle plate group is arranged on the glue gun and is hinged to the glue gun;

[0010] A support rod, one end of which is hinged to the glue gun;

[0011] A protractor is hinged to the other end of the support rod.

[0012] Furthermore, the baffle set includes:

[0013] A first baffle, the first baffle being located at one side of the glue gun;

[0014] a second baffle, the second baffle being located at the other side of the glue gun;

[0015] A limiting rod, wherein two ends of the limiting rod are respectively connected to the first blocking piece and the second blocking piece.

[0016] Furthermore, the heads of the first baffle and the second baffle are provided with a flexible, high temperature resistant protective layer.

[0017] Furthermore, the protective layer is a PET protective layer, an acrylic protective layer or a Teflon protective layer.

[0018] Furthermore, the head angles of the first baffle and the second baffle are greater than 45 degrees.

[0019] Furthermore, the first blocking piece and the second blocking piece are both L-shaped.

[0020] Furthermore, the other end of the support rod is tilted upward at a preset angle.

[0021] Furthermore, the preset angle is 30-45 degrees.

[0022] Furthermore, when dispensing glue, the heads of the first baffle and the second baffle extend out of the glue outlet nozzle of the glue gun; when measuring, the other end of the support rod extends out of the glue outlet nozzle of the glue gun.

[0023] Furthermore, the length of the support rod is greater than the length of the first blocking piece and the second blocking piece.

[0024] By applying the technical solution of the utility model, glue is applied at the contact point between the printing plate roller and the scraper by using a glue gun, and a baffle group is used to prevent hot melt glue from flowing out from both sides when the glue gun is applying glue, thereby forming a hot melt glue block. After the hot melt glue block is cooled, the angle is measured with a protractor, so that the angle of the scraper can be obtained. Moreover, the baffle group and the support rod are hinged to the glue gun, so that the position of the baffle group and the support rod can be adjusted according to the needs of use, and the limited space between the printing plate and the scraper can be effectively utilized. The volume of the entire gravure scraper angle measuring device can also be reduced, which is convenient to carry and store. Moreover, the gravure scraper angle measuring device of the utility model integrates multiple functions in one, and is easier to use.

[0025] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures particularly pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is described in detail below in conjunction with the accompanying drawings to make the above advantages of the present invention more clear.

[0027] Figure 1 It is a schematic diagram of a storage state of a gravure scraper angle measuring device of the utility model;

[0028] Figure 2 It is a schematic diagram of a gravure scraper angle measuring device of the utility model in an open state of a baffle group;

[0029] Figure 3 It is a schematic diagram of the gravure scraper angle measuring device of the utility model in the gluing state;

[0030] Figure 4 It is a schematic diagram of measuring a hot melt adhesive block of a gravure scraper angle measuring device of the utility model;

[0031] Figure 5 It is a schematic diagram of a gravure scraper angle measuring device of the utility model in an open state of a support rod;

[0032] Figure 6 It is a schematic diagram of a baffle set of a gravure scraper angle measuring device of the utility model;

[0033] Figure 7 The utility model is a schematic diagram of a supporting rod and a blocking piece group of a gravure scraper angle measuring device in a state where they are simultaneously opened. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are directions or positional relationships based on the directions or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Reference Figures 1 to 5 As shown, the gravure scraper angle measuring device provided by the utility model comprises: a glue gun 1 for applying glue at the contact point between the plate roller 10 and the ink scraper 20, a baffle set 2 for preventing hot melt glue from flowing out from both sides when the glue gun 1 is applying glue, a rotatable support rod 3 and a protractor 4 for measuring the angle.

[0039] The glue gun 1 is a hot melt glue gun, the baffle plate group 2 is arranged on the glue gun 1 and is hinged to the glue gun 1, one end of the support rod 3 is hinged to the glue gun 1, and the protractor 4 is hinged to the other end of the support rod 3, and the support rod 3 plays a role of fixing the protractor 4. When applying glue, the baffle plate group 2 is close to the ink scraper 20, that is, the baffle plate group 2 and the ink scraper 20 are abutted, so that the hot melt glue can fill the gap between the printing plate roller 10, the ink scraper 20 and the baffle plate group to form a hot melt glue block 30. The shape of the hot melt glue block 30 is the shape of the space structure between the two baffle plates of the baffle plate group 2, the printing plate roller and the ink scraper 20 (such as Figure 4 As shown), the angle measured is more accurate.

[0040] When in use, the support rod 3 and the baffle set 2 can be adjusted as needed, such as: when glue is needed, the baffle set 2 is adjusted to the glue outlet end of the glue gun 1, and the protractor 4 can be adjusted to the rear end of the glue gun 1 (such as Figure 2 When the angle needs to be measured, the protractor 4 is adjusted to the glue outlet end of the glue gun 1, and the baffle group 2 is adjusted to the rear end of the glue gun 1 (as shown); Figure 4 , Figure 5 When not in use, the baffle set 2 and the protractor 4 can be adjusted to the rear end of the glue gun 1 (as shown in FIG. Figure 1 As shown in the figure, the space can be effectively utilized, so that the volume of the entire gravure scraper angle measuring device is small, and it is convenient to carry and store.

[0041] The glue gun 1 is a wireless glue gun, in which a rechargeable battery is arranged, and the glue gun 1 is free from cable constraints when in use, is easy to carry, and is easier to operate.

[0042] Please also read Figure 6 In this embodiment, the baffle group 2 includes: a first baffle 21, a second baffle 22 and a limiting rod 23. The first baffle 21 is located on one side of the glue gun 1, and the second baffle 22 is located on the other side of the glue gun 1, that is, the glue gun 1 is clamped between the first baffle 21 and the second baffle 22. The two ends of the limiting rod 23 are respectively connected to the first baffle 21 and the second baffle 22. The first baffle 21 and the second baffle 22 block the two sides of the glue nozzle of the glue gun 1, so that the hot melt adhesive can be prevented from flowing out to both sides during gluing, and it is easier to fill the gap between the scraper 20 and the printing plate roller 10 to form a hot melt adhesive block 30. The limiting rod 23 plays a role in fixing the first baffle 21 and the second baffle 22, so that the first baffle 21 and the second baffle 22 are prevented from being relatively opened during use, and the effect of preventing the hot melt adhesive from being exposed on the side cannot be achieved.

[0043] At the same time, when in use (such as dispensing glue), the length of the limit rod 23 is 2CM, which also serves to limit the rotation angle of the first baffle 21 and the second baffle 22, so that the first baffle 21 and the second baffle 22 can be on the same horizontal line as the glue outlet of the glue gun 1, and when dispensing glue, one side of the first baffle 21 and the second baffle 22 can be kept against the ink scraper 20, so that the shape of the hot melt glue after cooling can truly reflect the angle between the ink scraper 20 and the printing plate. When storing or measuring the angle, the baffle group 2 turns to the rear end of the glue gun 1, and the limit rod 23 is used to limit the position, so that the first baffle 21 and the second baffle 22 are parallel to the body of the glue gun 1, avoiding excessive rotation of the baffle group 2, causing the tips of the first baffle 21 and the second baffle 22 to extend obliquely upward from the body of the glue gun 1, causing safety hazards.

[0044] In this embodiment, the heads of the first baffle 21 and the second baffle 22 are provided with a flexible, high-temperature resistant protective layer, and the head angles of the first baffle 21 and the second baffle 22 are greater than 45 degrees, so as to avoid damage to the printing plate roller 10 caused by the heads of the first baffle 21 and the second baffle 22 being too sharp or too hard during operation, and the protective layer can also facilitate the separation of the hot melt adhesive block 30 from the first baffle 21 and the second baffle 22 after cooling.

[0045] Furthermore, the protective layer also has a high temperature resistance effect, so that the heads of the first baffle 21 and the second baffle 22 will not be deformed when they come into contact with the high-temperature hot melt adhesive, thereby ensuring the measurement accuracy.

[0046] In this embodiment, the protective layer is one of a PET protective layer, an acrylic protective layer or a Teflon protective layer, which is not limited here. The head angles of the first baffle 21 and the second baffle 22 are obtuse angles to prevent scratching the printing plate roller 10 when they come into contact with the printing plate roller.

[0047] Furthermore, the heads of the first baffle 21 and the second baffle 22 are provided with rounded corners, so as to further prevent the heads of the first baffle 21 and the second baffle 22 from being too sharp and damaging the plate roller 10 .

[0048] In this embodiment, the first baffle 21 and the second baffle 22 are both L-shaped, so that the first baffle 21 and the second baffle 22 can extend forward and be placed at the glue outlet of the glue gun 1 when in use, and can retract backward and be close to the glue gun 1 body without tilting and extending out of the glue gun 1 body when not in use.

[0049] Please continue reading Figures 1 to 5 In this embodiment, the other end of the support rod 3 is tilted upward at a preset angle of 30-45 degrees, which is more convenient for measuring the hot melt adhesive block 30 after cooling.

[0050] In this embodiment, when dispensing glue, the heads of the first baffle 21 and the second baffle 22 rotate to the glue nozzle of the glue gun 1, extend to the front side of the glue nozzle and contact the printing plate roller 10 or maintain a certain gap (such as within 5 mm) with the printing plate roller 10, and at the same time, the lower sides of the first baffle 21 and the second baffle 22 are close to the ink scraper 20. Combined with the ink scraper 20, the hot melt glue extruded by the glue gun 1 can fill the gap between the printing plate roller 10, the first baffle 21, the second baffle 22, and the ink scraper 20 to form a hot melt glue block 30; when measuring, the first baffle 21 and the second baffle 22 rotate to the rear end of the glue gun, and the other end of the support rod 3 rotates to the glue nozzle side and extends out of the glue nozzle of the glue gun 1. When measuring the cooled hot melt glue block 30, it will not interfere with the glue nozzle of the glue gun 1, which is more conducive to measurement.

[0051] Specifically, the length of the support rod 3 is greater than the length of the first baffle 21 and the second baffle 22 (eg Figure 7 As shown), the ends of the first baffle 21 and the second baffle 22 are staggered from the protractor 4, so that the support rod 3 or the baffle group 2 interferes with each other when the position is adjusted by rotation.

[0052] In order to make the structure of the gravure scraper angle measuring device of this embodiment clearer, its operation method is described in detail below:

[0053] First, adjust the baffle set 2 to the glue outlet of the glue gun 1, and then place the glue baffle set 2 at the contact point between the ink scraper 20 and the printing plate roller 10 (such as Figure 3 As shown, Figure 3 The arrow is the tangent direction of the contact point with the plate roller 10) or a predetermined gap (such as 2 mm) from the plate roller 10, the glue baffle set 2 is against the ink scraper 20, and the hot melt glue is squeezed out with the glue gun 1. At this time, a space is formed between the plate roller 10, the first baffle 21, the second baffle 22 and the ink scraper 20, and the space is filled with hot melt glue. The hot melt glue block 30 at the angle between the ink scraper 20 and the plate roller can be collected, and the space between the ink scraper 20 and the plate roller 10 will not be limited when dispensing glue.

[0054] After the formed hot melt adhesive block 30 cools down, the hot melt adhesive block 30 and the glue gun are taken out, and the measurement is also not limited by the space between the ink scraper 20 and the printing plate roller 10. When measuring, just reset the baffle set 2, adjust the support rod 3 to the glue outlet of the glue gun 1, and place the cooled hot melt adhesive block 30 on the protractor 4 for measurement (such as Figure 4 As shown), since the diameter of the printing roller is about 1 meter, the length and width of the hot melt adhesive block 30 are both about 2 cm, which is much smaller than the diameter of the printing roller. After cooling and forming, the surface in contact with the printing roller is equivalent to a platform, which can be tested by a protractor to obtain the angle α between the scraper 20 and the plate roller. Finally, α is subtracted from 180 degrees to obtain the angle of the scraper 20. The operation is extremely simple.

[0055] In summary, the utility model uses a glue gun to apply glue at the contact point between the printing plate roller and the scraper blade, and during the gluing process, a baffle group is used to prevent hot melt glue from flowing out from both sides when the glue gun is gluing, thereby forming a hot melt glue block. After the hot melt glue block is cooled, the angle is measured with a protractor, thereby obtaining the angle of the scraper blade. Moreover, the baffle group and the support rod are hinged to the glue gun, so that the baffle group and the support rod can be adjusted according to the needs of use, and the space can be effectively utilized, so that the volume of the entire gravure scraper blade angle measuring device is small, which is convenient to carry and store, and the gravure scraper blade angle measuring device also integrates multiple functions in one, which is easier to use.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gravure scraper angle measuring device, characterized in that: include: A glue gun (1) for applying glue at the contact point between the printing plate roller (10) and the ink scraper (20); A baffle plate group (2) used to prevent hot melt adhesive from flowing out from both sides when the glue gun (1) is applying glue, wherein the baffle plate group (2) is arranged on the glue gun (1) and is hinged to the glue gun (1); A support rod (3), one end of which is hinged to the glue gun (1); A protractor (4) is hinged to the other end of the support rod (3).

2. The gravure scraper angle measuring device according to claim 1, characterized in that: The baffle set (2) comprises: A first baffle (21), the first baffle (21) being located on one side of the glue gun (1); A second baffle (22), the second baffle (22) being located on the other side of the glue gun (1); A limiting rod (23), wherein two ends of the limiting rod (23) are respectively connected to the first blocking piece (21) and the second blocking piece (22).

3. The gravure scraper angle measuring device according to claim 2, characterized in that: The heads of the first baffle (21) and the second baffle (22) are provided with a flexible, high-temperature resistant protective layer.

4. The gravure scraper angle measuring device according to claim 3, characterized in that: The protective layer is a PET protective layer, an acrylic protective layer or a Teflon protective layer.

5. The gravure scraper angle measuring device according to claim 4, characterized in that: The head angles of the first baffle (21) and the second baffle (22) are greater than 45 degrees.

6. The gravure scraper angle measuring device according to claim 5, characterized in that: The first blocking piece (21) and the second blocking piece (22) are both L-shaped.

7. The gravure scraper angle measuring device according to claim 1, characterized in that: The other end of the support rod (3) is tilted upward at a preset angle.

8. The gravure scraper angle measuring device according to claim 7, characterized in that: The preset angle is 30-45 degrees.

9. The gravure scraper angle measuring device according to claim 2, characterized in that: When dispensing glue, the heads of the first baffle (21) and the second baffle (22) extend out of the glue outlet nozzle of the glue gun (1); when measuring, the other end of the support rod (3) extends out of the glue outlet nozzle of the glue gun (1).

10. The gravure scraper angle measuring device according to claim 9, characterized in that: The length of the support rod (3) is greater than the length of the first baffle (21) and the second baffle (22).

Images