Overflow ink wiping device and method

Abstract

The invention discloses an overflow ink wiping device and method, and the device comprises a wiping head (3) which is used for providing a rabbet body wiping surface (11) and an arc wiping surface (12) for wiping a product (1); the wiping cloth feeding mechanism (4) is used for collecting and releasing wiping cloth (41) wrapping the wiping surface; the rotary clamping structure (6) is used for horizontally placing and clamping the product (1) and driving the product (1) to rotate around the Z-axis direction, so that the specific section, needing to be wiped, of the rabbet body or the arc of the product (1) is replaced; the wiping head linear driving mechanism (5) is installed on the wiping head (3) and used for driving the wiping head (3) to move along the Y axis to press the rabbet body or the arc of the product (1); the product linear driving mechanism (7) is connected with the rotary clamping structure (6) to drive the product (1) to move in the X-axis direction, so that the wiping cloth (41) wipes the rabbet body or the arc of the product (1); in this way, large-scale automatic wiping can be achieved, and the wiping efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of electronic equipment processing, and in particular to a device and method for wiping overflow ink. Background Art

[0002] At present, many handheld and wearable electronic devices include a cover body, and the front of the cover body generally needs to be inkjetted. For example, the front cover of the Apple Watch is coated with inkjet. However, in addition to the front side that needs to be inkjetted, the cover body also includes the body and arc, which are generally non-required spraying areas, and the inkjet process will cause the non-required spraying areas to be stained with ink. Due to the special location of the ink, there is no mature technology on the market to wipe the overflowed ink, and it can only rely on manual wiping, which has a large workload and low efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is that, in view of the defect of the prior art that the wiping of overflowed ink relies on manual labor, an overflowed ink wiping device and method are provided, which can automatically wipe the overflowed ink without relying on manual labor and has high efficiency.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] On the one hand, a device for wiping ink overflow is constructed, which includes:

[0006] At least one wiping head, the wiping head providing a wiping surface for wiping the product, the wiping surface comprising a vertical wiping surface and an arc wiping surface arranged in upper and lower layers;

[0007] A wiping cloth feeding mechanism, used for collecting and releasing wiping cloths, wherein the wiping cloths cover the wiping surface;

[0008] A rotating clamping structure, used to lay flat and clamp the product, and drive the product to rotate around the Z-axis direction, so as to change the specific section of the body or arc of the product that needs to be wiped;

[0009] A wiping head linear drive mechanism is installed on the wiping head, and is used to drive the wiping head to move along the Y axis, with the wiping surface facing the rotating clamping structure, and when wiping, the wiping head linear drive mechanism presses the body or arc of the product under the drive of the wiping head linear drive mechanism so that the wiping cloth keeps in contact with the body or arc of the product;

[0010] The product linear drive mechanism is arranged side by side with the wiping head linear drive mechanism along the Y-axis direction, and is connected to the rotating clamping structure to drive the product to move along the X-axis direction, thereby realizing the wiping cloth wiping the product in a straight line or arc.

[0011] Furthermore, in the ink overflow wiping device described in the present invention, the wiping head includes a wiping head main body composed of an upper and lower layer structure with different hardness, the side of the layer structure with relatively higher hardness in the wiping head main body facing the rotating clamping structure is a vertical plane to serve as the standing wiping surface, and the side of the other layer structure with relatively lower hardness in the wiping head main body facing the rotating clamping structure is a curved surface adapted to the arc of the product to serve as the arc wiping surface.

[0012] Furthermore, in the ink overflow wiping device described in the present invention, the wiping head also includes a wiping head seat, a Y-axis linear slide rail, and an elastic member; the wiping head seat is connected to the wiping head linear drive mechanism to move along the Y-axis under the drive of the wiping head linear drive mechanism; the Y-axis linear slide rail extends along the Y-axis direction and is fixed on the wiping head seat, and the wiping head body is slidably matched with the Y-axis linear slide rail; the elastic member can be deformed along the Y-axis direction and clamped between the side of the wiping head body opposite to the wiping surface and the wiping head seat.

[0013] Furthermore, the ink overflow wiping device of the present invention further comprises:

[0014] A lifting platform, which can be lifted and lowered along the Z axis, on which the wiping head linear drive mechanism and the wiping cloth feeding mechanism are installed, is used to change the height of the wiping head in the Z axis direction, so as to select one of the two wiping surfaces, the body wiping surface and the arc wiping surface, for wiping;

[0015] Among them, the width of the body wiping surface is greater than the width of the body of the product. When wiping the body of the product, the area of ​​the body wiping surface away from the arc wiping surface contacts the body of the product, and the area of ​​the body wiping surface adjacent to the arc wiping surface is misaligned up and down with the body of the product, so that the arc wiping surface cannot contact the product, and the edge of the arc wiping surface away from the body wiping surface is chamfered.

[0016] Furthermore, in the ink overflow wiping device described in the present invention, the rotary clamping structure includes a rotary motor, a rotary adsorbing member on the top for placing the product horizontally, a product pressing head for clamping the product up and down together with the rotary adsorbing member, a rotary pressing cylinder, and a swing arm; the bottom of the rotary adsorbing member is connected to the rotary motor to rotate around the Z-axis direction with the rotary motor, and the top of the rotary adsorbing member is provided with a vacuum hole for adsorbing the product;

[0017] The product pressing head can be connected to the swing arm so as to rotate around the Z-axis direction to ensure that the product pressing head rotates together with the product. The swing arm is connected to the rotary downward pressing cylinder so that the product pressing head can be driven by the rotary downward pressing cylinder to rotate above the product and then descend to press the product.

[0018] Furthermore, in the ink overflow wiping device described in the present invention, the product pressing head includes a connecting shaft and a clamping shaft coaxially arranged up and down, the upper end of the connecting shaft is connected to the swing arm, the lower end of the connecting shaft is connected to the upper end of the clamping shaft through a bearing, and the end face of the lower end of the clamping shaft is used to contact the product.

[0019] Furthermore, in the ink overflow wiping device described in the present invention, the wiping cloth feeding mechanism includes a winding feeder, a winding motor that drives the winding feeder to rotate to rewind the wiping cloth, an unwinding feeder, and an unwinding motor that drives the unwinding feeder to rotate to unwind the wiping cloth. One end of the wiping cloth is wound on the winding feeder, and the other end is wound on the unwinding feeder after turning around at the wiping surface.

[0020] Further, in the ink overflow wiping device of the present invention, the rewinding feeder and the unwinding feeder are respectively located above and below the wiping head linear drive mechanism;

[0021] The wiping cloth feeding mechanism also includes a wiping cloth pressing down cylinder and a wiping cloth lifting cylinder extending along the X-axis direction, the wiping cloth pressing down cylinder and the winding feeder are located above the wiping head linear drive mechanism, the wiping cloth lifting cylinder and the unwinding feeder are located below the wiping head linear drive mechanism, the wiping cloth pressing down cylinder is used to press the wiping cloth down to near the top of the wiping head and then tilt it to the wiping surface, and the wiping cloth lifting cylinder is used to push the wiping cloth up to near the bottom of the wiping head and then tilt it to the wiping surface.

[0022] Furthermore, in the ink overflow wiping device described in the present invention, the number of the wiping heads and the rotating clamping structures are both multiple and are arranged along the X-axis direction, each wiping head is equipped with a wiping cloth, the wiping head linear drive mechanism is connected to each of the wiping heads at the same time to drive each of the wiping heads to move synchronously, and the product linear drive mechanism is connected to each of the rotating clamping structures at the same time to drive each of the products to move synchronously.

[0023] In the second aspect, a method for wiping overflow ink is constructed, which is implemented based on the above-mentioned device for wiping overflow ink, and the contour around the product is divided into sections: each straight edge corresponds to a section, and each corner is divided into multiple sections;

[0024] The method comprises:

[0025] Body wiping step: adjusting the height of the wiping head to a first height, the wiping head linear drive mechanism moves along the Y-axis direction to make the wiping cloth pre-pressed and contact with the body of the product, the product linear drive mechanism moves back and forth along the X-axis direction with the rotating clamping structure to wipe a specific section, and after wiping a section, the product is rotated by the rotating clamping structure to select the next section for wiping until all sections are wiped;

[0026] Steps for wiping the corner by leaning forward: adjust the height of the wiping head to the second height, the linear drive mechanism of the wiping head moves along the Y-axis direction to make the wiping cloth pre-pressed and contact with the arc of the product, the linear drive mechanism of the product moves back and forth along the X-axis direction with the rotating clamping structure to wipe the specific section, and after wiping each section, rotate the product through the rotating clamping structure to select the next section to wipe until all sections are wiped.

[0027] The ink overflow wiping device and method of the present invention have the following beneficial effects: the present invention does not require manual wiping, but uses a wiping head covered with a wiping cloth for automatic wiping, and the linear driving mechanism of the wiping head can be used to drive the body wiping surface and arc wiping surface of the wiping head to contact the body and arc of the product respectively, and the rotating clamping structure is used to replace the specific section of the body or arc of the product that needs to be wiped, and then the body or arc of the product can be wiped by moving the product back and forth in a straight line. Therefore, large-scale automatic wiping can be achieved, which greatly improves the wiping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0029] Figure 1 It is a schematic diagram of the product structure;

[0030] Figure 2 It is the side view of the product;

[0031] Figure 3 It is a top view of the product;

[0032] Figure 4 It is a structural schematic diagram of the ink overflow wiping device of the present invention;

[0033] Figure 5 is a schematic diagram of the ink overflow wiping device of the present invention from another angle;

[0034] Figure 6 is a schematic diagram of a wiping surface of a wiping head;

[0035] Figure 7 is a detailed view of the ink overflow wiping device of the present invention;

[0036] Figure 8 is a bottom view of a detail of the ink overflow wiping device of the present invention;

[0037] Fig. 9It is a detailed picture related to the collection and release of the wiping cloth;

[0038] Fig.10 Schematic diagram of two wiping states. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Typical embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0040] Embodiment 1

[0041] Before introducing this embodiment, the products to be wiped are introduced first. Figure 1-3 The product is a roughly rectangular cover body, including a bottom and surrounding side walls. The outer surface of the bottom is a rectangular appearance surface, and the rectangular corners are arc-shaped. The surrounding side walls of the product enclose a very shallow groove. The inner surface of the side wall is the inkjet surface 101, and the inkjet surface can also be the entire recessed surface of the product. The outer surface of the side wall is divided into two parts: an arc 102 and a body 103. The arc 102 is connected to the periphery of the bottom plane and is curved in an arc shape. The body 103 is a vertical surface, connected to the periphery of the arc 102. Because the arc 102 and the body 103 are generally stained with ink, the arc 102 and the body 103 need to be wiped. The ink overflow wiping device of this embodiment is used to wipe the arc 102 and the body 103.

[0042] refer to Figure 4 The ink overflow wiping device of this example includes: a wiping cloth feeding mechanism 4, a wiping head linear driving mechanism 5, a rotating clamping structure 6, a product linear driving mechanism 7, and at least one wiping head 3.

[0043] The wiping head 3 provides a wiping surface for wiping the product 1 , and the wiping surface includes a vertical wiping surface 11 and an arc wiping surface 12 which are arranged in upper and lower layers. The wiping cloth feeding mechanism 4 is used to collect and release the wiping cloth 41, and the wiping cloth 41 covers the wiping surface; the rotating clamping structure 6 is used to place and clamp the product 1 horizontally, and drive the product 1 to rotate around the Z-axis direction, so as to change the specific section of the body 103 or the arc 102 of the product 1 that needs to be wiped; the wiping head linear driving mechanism 5 is installed with the wiping head 3, and is used to drive the wiping head 3 to move along the Y-axis, and the wiping surface faces the rotating clamping structure 6, and when wiping, the body 103 or the arc 102 of the product 1 is pressed under the drive of the wiping head linear driving mechanism 5 so that the wiping cloth keeps in contact with the body 103 or the arc 102 of the product 1; the product linear driving mechanism 7 is arranged side by side with the wiping head linear driving mechanism 5 along the Y-axis direction, and is connected to the rotating clamping structure 6 to drive the product 1 to move along the X-axis direction, so that the wiping cloth 41 wipes the body 103 or the arc 102 of the product 1.

[0044] Among them, the arm wiping surface 11 and the arc wiping surface 12 can synchronously wipe the arm 103 and the arc 102, for example, the arm wiping surface 11 and the arc wiping surface 12 can simultaneously imitate the arm 103 and the arc 102 of the product and then wipe them. However, the experiment found that the wiping effect of the arm 103 is not good when wiping at the same time. The reason may be that the wiping cloth 41 at the intersection of the arm wiping surface 11 and the arc wiping surface 12 will not completely fit the wiping surface, so the connecting part of the arc 102 and the arm 103 of the product will not be fully wiped. In addition, the arc 102 and the arm 103 are not suitable to be wiped with the same material, because the arc 102 has a tolerance. If the arc is wiped with a hard imitation material, the arc will not be wiped clean. If all soft materials are used, it will be deformed and wiped to the inkjet surface 101. Therefore, preferably, reference Figure 6In this embodiment, the wiping head 3 includes a wiping head body 31 composed of two layers of structures with different hardness, the side of the layer with relatively high hardness in the wiping head body 31 facing the rotating clamping structure 6 is a vertical plane as the body wiping surface 11, and the side of the other layer with relatively low hardness in the wiping head body 31 facing the rotating clamping structure 6 is a curved surface adapted to the arc of the product 1 as the arc wiping surface 12. Because of the different hardness, the degree of pressing required during wiping is also different, so from this perspective, the body 103 and the arc 102 are not suitable for synchronous wiping. For this reason, in this embodiment, the wiping of the body 103 by the body wiping surface 11 and the wiping of the arc 102 by the arc wiping surface 12 are carried out separately. Specifically, the width of the body wiping surface 11 is greater than the width of the body of the product 1, and a lifting platform 2 that can be lifted and lowered along the Z axis is configured, and the wiping head linear drive mechanism 5 and the wiping cloth feeding mechanism 4 are installed on the lifting platform 2. The lifting platform 2 is used to change the height of the wiping head 3 in the Z-axis direction, adjust the height of the body wiping surface 11 and the arc wiping surface 12, so as to select one of the body wiping surface 11 and the arc wiping surface 12 to wipe the product 1. When wiping the body of the product 1, the area of ​​the body wiping surface 11 away from the arc wiping surface 12 contacts the body of the product 1, and the area of ​​the body wiping surface 11 adjacent to the arc wiping surface 12 is misaligned with the body of the product 1 up and down, so that the arc wiping surface 12 cannot contact the product, and the edge of the arc wiping surface 12 away from the body wiping surface 11 is chamfered 13 to avoid the appearance of the bottom of the product when the arc wiping surface 12 wipes the product. In addition, when wiping the arc, the area of ​​the body wiping surface 11 adjacent to the arc wiping surface 12 may contact the product, and the material of the body wiping surface 11 is harder, which may affect the contact between the arc wiping surface 12 and the arc. For this reason, the area of ​​the body wiping surface 11 adjacent to the arc wiping surface 12 can be changed from a vertical surface to a plane or an inclined surface, so as to avoid the arc wiping surface 12 being restricted from continuing to approach the product arc due to the contact between the body wiping surface 11 and the product when wiping the product arc.

[0045] Each structure is described in more detail below.

[0046] refer to Figure 4-5The lifting platform 2 includes a wiping head lifting electric cylinder 24, a stage 21, a Z-direction guide shaft 23, and a Z-direction guide sleeve 22. The wiping head linear drive mechanism 5 and the wiping cloth feeding mechanism 4 are installed on the stage 21. Specifically, the stage 21 includes a top plate 211 and a bottom plate 212, and a side plate connecting the top plate 211 and the bottom plate 212. The wiping head linear drive mechanism 5 and the wiping cloth feeding mechanism 4 are mainly installed on the top plate 211. The lifting electric cylinder 24 is located below the bottom plate 212 and is connected to the bottom center of the bottom plate 212 of the stage 21, and is used to drive the stage 21 to lift vertically up and down. Z-direction guide shafts 23 are installed at the four corners of the bottom plate 212 of the stage 21, and the Z-direction guide sleeve 22 is fixed. The stage 21 is guided to rise and fall by the cooperation of the Z-direction guide sleeve 22 and the Z-direction guide shaft 23.

[0047] refer to Figure 7 , the wiping heads 3 are multiple and arranged in a row along the X-axis direction. In this embodiment, the body wiping surface 11 is on the top and the arc wiping surface 12 is on the bottom. Of course, they can also be switched, just turn the product over and lay it flat. Each wiping head 3 is equipped with a wiping cloth 41, the wiping head linear drive mechanism 5 is connected to each of the wiping heads 3 to drive each of the wiping heads 3 to move synchronously, and the product linear drive mechanism 7 is connected to each of the rotating clamping structures 6 to drive each product to move synchronously.

[0048] The wiping head 3 specifically includes a wiping head body 31, a wiping head seat 32, a Y-axis linear guide rail 33, and an elastic member 34. The wiping head body 31 is divided into two layers, which are made of different materials. The upper layer wipes the body, so the harder Al6061 is used, and the lower layer wipes the arc, so the softer polyurethane is used. The wiping head seat 32 is assembled from a plurality of plates, and the side of a row of the wiping head seats 32 that is away from the product 1 is connected to the wiping head linear drive mechanism 5 to move along the Y-axis under the drive of the wiping head linear drive mechanism 5. The Y-axis linear guide rail 33 extends along the Y-axis direction and is fixed to the top of the wiping head seat 32, and the bottom of the wiping head body 31 is slidably matched with the Y-axis linear guide rail 33. The top of the wiping head body 32 is provided with a vertically arranged baffle 321 on the side away from the product, and the elastic member 34 can be deformed along the Y-axis direction and clamped between the side of the wiping head body 31 opposite to the wiping surface and the baffle 321 on the top of the wiping head body 32. The elastic member 34 can be a spring. In this way, the wiping head body 31 can move along the Y-axis direction, and the wiping force can be adjusted to prevent the product 1 from being over-wiped.

[0049] refer to Figure 5 , 8The wiping head linear drive mechanism 5 includes a screw Y-axis motor 50, a screw nut 51, a Y-axis connecting plate 52, a Y-axis connecting plate 53, and a row of Y-axis slide rails 54. The Y-axis slide rails 54 extend along the Y-axis direction. The row of Y-axis slide rails 54 are arranged in a spaced relationship along the X direction and fixed on the top of the top plate 211. A row of wiping heads 3 are mounted on a row of Y-axis slide rails 54 through a wiping head seat 32. The bottom of each wiping head seat 32 is slidably matched with the corresponding Y-axis slide rail 54. The screw Y-axis motor 50 is mounted on the bottom of the top plate 211. The screw nut 51 is mounted on the screw of the screw Y-axis motor 50. The vertically extending Y-axis connecting plate 52 is mounted on the screw nut 51. An avoidance groove is provided on the top plate 211 for the connection block 52 to move along the Y-axis direction. The avoidance groove is located between the two Y-axis slide rails 54 in the middle. The Y-axis connecting plate 53 extends along the X-axis direction and is located on the side of the wiping head seat 32 of a row of wiping heads 3 that is away from the product 1. The wiping head seat 32 of a row of wiping heads 3 is also connected to the Y-axis connecting plate 53 at the same time. The Y-axis connecting plate 52 passes through the avoidance groove and is connected to the Y-axis connecting plate 53, thereby being able to synchronously drive a row of wiping heads 3 to move synchronously along the Y-axis.

[0050] refer to Figure 4 , 7 9, the wiping cloth feeding mechanism 4 comprises a wiping cloth 41, a reeling flyer 42, a reeling motor 43 for driving the reeling flyer 42 to rotate and reel in the wiping cloth 41, an unwinding flyer 44, and an unwinding motor 45 for driving the unwinding flyer 44 to rotate and unwind the wiping cloth 41. The wiping cloth 41 is specifically a metal cloth, and of course, it can also be any other cloth suitable for wiping, which is not limited to this.

[0051] The rewinding flyer 42 and the unwinding flyer 45 are respectively located above and below the wiping head linear drive mechanism 5. Specifically, the rewinding flyer 42 is rotatably mounted on the vertical plate at the top of the top plate 211, and the unwinding flyer 45 is rotatably mounted on the vertical plate between the bottom plate 212 and the top plate 211. One end of the wiping cloth 41 is wound around the rewinding flyer 43, and the other end is wound around the unwinding flyer 45 after turning around at the wiping surface.

[0052] In order to ensure a good fit between the wiping cloth 41 and the wiping surface of the wiping head 3, preferably, the wiping cloth feeding mechanism 4 of this embodiment also includes a wiping cloth pressing cylinder 46 and a wiping cloth upper cylinder 47 extending along the X-axis direction, and the wiping cloth pressing cylinder 46 and the winding flyder 42 are located above the entire wiping head linear drive mechanism 5 and the wiping head 3, and the wiping cloth upper cylinder 47 and the unwinding flyder 45 are located below the wiping head linear drive mechanism 5. The wiping cloth pressing cylinder 46 and the wiping cloth upper cylinder 47 are both close to the wiping head 3. The wiping cloth pressing cylinder 46 is used to press the wiping cloth 41 down to the top of the wiping head 3 and then transition to the wiping surface at a smaller angle (for example, the angle between the top of the wiping head 3 is less than 30°). The wiping cloth upper cylinder 47 is used to push the wiping cloth 41 up to the bottom of the wiping head 3 and then transition to the wiping surface at a smaller angle (for example, the angle between the bottom of the wiping head 3 is less than 30°). After being pressed by the wiping cloth upper cylinder 47, it turns to vertical, and when it extends vertically to the bottom of the top plate 211, it passes through the cylinder 48 and turns to nearly horizontal, and then winds around the unwinding flyer 45.

[0053] Continue to refer Figure 7 , because the wiping heads 3 described in this embodiment are multiple and are all arranged along the X-axis direction, the number of the rotating clamping structures 6 is also multiple and is all arranged along the X-axis direction. The rotating clamping structure 6 includes a rotating motor 61, a rotating adsorbent 62 on the top for placing the product 1 horizontally, a product pressing head 63 that clamps the product 1 up and down together with the rotating adsorbent 62, a rotating downward pressing cylinder 64, and a swing arm 65. The rotating adsorbent 62 is in the shape of a circular shaft, and its bottom is connected to the rotating motor 61 so as to rotate with the rotating motor 61 around the Z-axis direction. The top of the rotating adsorbent 62 is provided with a vacuum hole for adsorbing the product 1, and the vacuum hole is also connected to the vacuum equipment through a pipeline. The product pressing head 63 can be connected to the swing arm 65 in a self-rotating manner around the Z-axis direction to ensure that the product pressing head 63 rotates with the product 1. The swing arm 65 is connected to the rotary pressing cylinder 64 so that the swing arm 65 can rotate the product pressing head 63 to the top of the product 1 under the drive of the rotary pressing cylinder 64 and then descend to press the product 1, thereby ensuring that the pressing head 63 rotates together with the product 1.

[0054] More specifically, the product pressing head 63 includes a connecting shaft and a clamping shaft coaxially arranged up and down, the upper end of the connecting shaft is vertically connected to the swing arm 65, the lower end of the connecting shaft is connected to the upper end of the clamping shaft through a bearing, and the end face of the lower end of the clamping shaft is used to contact the product. When the product 1 needs to be installed, the inkjet surface 101 of the product is first placed upward on the top of the rotating adsorption component 62, the vacuum adsorption column product 1 is turned on, and then the rotating downward pressure cylinder 64 is rotated to rotate the swing arm 65 to the top of the product 1, and the product pressing head 63 is also directly above the product 1. Then the rotating downward pressure cylinder 64 is lowered to drive the swing arm 65 to descend until the clamping shaft of the product pressing head 63 clamps the product 1. During the wiping process, when it is necessary to rotate the product 1 to switch the wiping section, because the connecting shaft and the clamping shaft are connected by bearings, the clamping shaft will rotate with the product, while the connecting shaft does not move, so that the product 1 can be always clamped.

[0055] Continue to refer Figure 7 The product linear drive mechanism 7 includes a module for X-axis movement, a servo motor 71 for driving the module, and a row of T-shaped connecting plates 72. The T-shaped connecting plates 72 include a first vertical plate and a second vertical plate. The first vertical plate is vertically connected to the center of the second vertical plate. A row of rotating clamping structures 6 is fixed to one side of a row of the first vertical plates facing the wiping head 3. The center line position of the other side of the first vertical plate is connected to the second vertical plate, and the second vertical plate is connected to the top of the module mover. The linear drive mechanism in this article is not limited as long as it can achieve linear movement.

[0056] The wiping process of this embodiment is detailed in the subsequent embodiment 2.

[0057] Embodiment 2

[0058] The present invention discloses a method for wiping overflow ink based on the first embodiment. The present invention divides the contour around the product 1 into sections: each straight edge corresponds to a section, and each corner is divided into multiple sections. Figure 3 As shown, 1a represents a corner, 1b represents a straight edge, 1a needs to be divided into multiple sections for wiping, and each 1b can be wiped as a section.

[0059] The method of the present invention comprises, after the rotating clamping structure 6 clamps the product 1, performing the following steps:

[0060] Body wiping step: adjust the height of the wiping head 3 to a first height, move the wiping head linear drive mechanism 5 along the Y-axis direction to make the wiping cloth 41 pre-pressed and contact with the body of the product 1, and the product linear drive mechanism 7 moves back and forth along the X-axis direction with the rotating clamping structure 6 to wipe a specific section, and after wiping a section, rotate the product 1 by rotating the clamping structure 6 to select the next section for wiping until all sections are wiped;

[0061] Steps for wiping by leaning forward and turning the body to wipe the corner: adjust the height of the wiping head 3 to the second height, move the wiping head linear drive mechanism 5 along the Y-axis direction to make the wiping cloth 41 pre-pressed in the arc of the product 1, and the product linear drive mechanism 7 moves back and forth along the X-axis direction with the rotating clamping structure 6 to wipe the specific section, and after wiping each section, rotate the product 1 by rotating the clamping structure 6 to select the next section to wipe until all sections are wiped.

[0062] It should be noted that the order of the standing body wiping step and the standing body corner wiping step can be swapped.

[0063] refer to Fig.10 For example, in a specific embodiment, the product corner is divided into three sections for wiping, and the specific process of the method is as follows:

[0064] ① The product is automatically fed to the rotating clamping structure 6 for clamping;

[0065] ② The wiping head 3 is moved forward by the screw Y-axis motor 50, so that the metal cloth on the wiping surface 11 of the body is pre-pressed and contacted with the body of the product. Fig.10 In the state shown in a, because the width of the body wiping surface 11 is larger than the body width of the product, the height of the wiping head 3 can be adjusted to control the arc wiping surface 12 to not contact the product 1. The product linear drive mechanism 7 drives the rotating clamping structure 6 and the product 1 to move left and right until the body of the product is wiped, the screw Y-axis motor 50 reverses, and the metal cloth leaves the product 1;

[0066] ③ The rotating motor 61 rotates at an angle so that the corner of the product 1 contacts the metal cloth, the screw Y-axis motor 50 rotates forward, the corner of the product is pre-pressed with the metal cloth, and the product linear drive mechanism 7 moves the rotating clamping structure 6 and the product 1 left and right. After wiping is completed, the screw Y-axis motor 50 reverses and the metal cloth leaves the product 1;

[0067] ④Repeat step ③ three times, and wipe the product in one corner;

[0068] ⑤ Repeat steps ② and ④ three times again, and the product is wiped completely;

[0069] ⑥ The wiping head lifting cylinder 24 is reversed, the wiping head 3 descends, and the product arc is pre-pressed with the metal cloth on the arc wiping surface 12, such as Fig.10 The state shown in b.

[0070] ⑦ Repeat steps ② and ④ four times, and the arc wiping of the product is completed.

[0071] After wiping is completed, if the wiping cloth 12 is no longer suitable for wiping, a clean wiping cloth 12 can be released through the wiping cloth feeding mechanism 4 to wipe the next batch of products.

[0072] It is understandable that, although the present embodiment is to wipe in steps of leaning forward and in an arc, allowing the wiping surface of the wiping head to lean forward and in an arc contact to wipe simultaneously is a simple variation of the present embodiment and also falls within the scope of protection of the present invention.

[0073] To sum up, the ink overflow wiping device and method of the present invention have the following beneficial effects: the present invention does not require manual wiping, but uses a wiping head covered with a wiping cloth for automatic wiping, and the linear driving mechanism of the wiping head can be used to drive the body wiping surface and arc wiping surface of the wiping head to contact the body and arc of the product respectively, and the rotating clamping structure is used to replace the specific section of the body or arc of the product that needs to be wiped, and then the body or arc of the product can be wiped by moving the product back and forth in a straight line. Therefore, large-scale automatic wiping can be achieved, which greatly improves the wiping efficiency.

[0074] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0075] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0076] Terms including ordinal numbers such as "first" and "second" used in this specification may be used to describe various components, but these components are not limited by these terms. The purpose of using these terms is only to distinguish one component from other components. For example, without departing from the scope of the present invention, the first component may be named as the second component, and similarly, the second component may also be named as the first component.

[0077] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A device for wiping ink overflow, characterized in that: include: At least one wiping head, the wiping head providing a wiping surface for wiping the product, the wiping surface comprising a vertical wiping surface and an arc wiping surface arranged in upper and lower layers; A wiping cloth feeding mechanism, used for collecting and releasing wiping cloths, wherein the wiping cloths cover the wiping surface; A rotating clamping structure, used to lay flat and clamp the product, and drive the product to rotate around the Z-axis direction, so as to change the specific section of the body or arc of the product that needs to be wiped; A wiping head linear drive mechanism is installed on the wiping head, and is used to drive the wiping head to move along the Y axis, with the wiping surface facing the rotating clamping structure, and when wiping, the wiping head linear drive mechanism presses the body or arc of the product under the drive of the wiping head linear drive mechanism so that the wiping cloth keeps in contact with the body or arc of the product; The product linear drive mechanism is arranged side by side with the wiping head linear drive mechanism along the Y-axis direction, and is connected to the rotating clamping structure to drive the product to move along the X-axis direction, so that the wiping cloth wipes the body or arc of the product.

2. The ink overflow wiping device according to claim 1, characterized in that: The wiping head includes a wiping head body, which is composed of an upper and lower layer structure with different hardness. The side of the layer structure with relatively higher hardness in the wiping head body facing the rotating clamping structure is a vertical plane to serve as the body wiping surface, and the side of the other layer structure with relatively lower hardness in the wiping head body facing the rotating clamping structure is a curved surface that matches the arc of the product to serve as the arc wiping surface.

3. The ink overflow wiping device according to claim 2, characterized in that: The wiping head also includes a wiping head base, a Y-axis linear slide rail, and an elastic member; the wiping head base is connected to the wiping head linear drive mechanism to move along the Y-axis under the drive of the wiping head linear drive mechanism; the Y-axis linear slide rail extends along the Y-axis direction and is fixed on the wiping head base, and the wiping head body is slidably matched with the Y-axis linear slide rail; the elastic member can be deformed along the Y-axis direction and clamped between the side of the wiping head body opposite to the wiping surface and the wiping head base.

4. The ink overflow wiping device according to any one of claims 1 to 3, characterized in that: Also includes: A lifting platform, which can be lifted and lowered along the Z axis, on which the wiping head linear drive mechanism and the wiping cloth feeding mechanism are installed, is used to change the height of the wiping head in the Z axis direction, so as to select one of the two wiping surfaces, the body wiping surface and the arc wiping surface, for wiping; Among them, the width of the body wiping surface is greater than the width of the body of the product. When wiping the body of the product, the area of ​​the body wiping surface away from the arc wiping surface contacts the body of the product, and the area of ​​the body wiping surface adjacent to the arc wiping surface is misaligned up and down with the body of the product, so that the arc wiping surface cannot contact the product, and the edge of the arc wiping surface away from the body wiping surface is chamfered.

5. The ink overflow wiping device according to claim 1, characterized in that: The rotary clamping structure includes a rotary motor, a rotary adsorbent on the top for placing the product flat, a product pressing head for clamping the product up and down together with the rotary adsorbent, a rotary pressing cylinder, and a swing arm; the bottom of the rotary adsorbent is connected to the rotary motor to rotate around the Z-axis direction with the rotary motor, and the top of the rotary adsorbent is provided with a vacuum hole for adsorbing the product; The product pressing head can be connected to the swing arm so as to rotate around the Z-axis direction to ensure that the product pressing head rotates together with the product. The swing arm is connected to the rotary downward pressing cylinder so that the product pressing head can be driven by the rotary downward pressing cylinder to rotate above the product and then descend to press the product.

6. The ink overflow wiping device according to claim 5, characterized in that: The product pressing head includes a connecting shaft and a clamping shaft coaxially arranged above and below, the upper end of the connecting shaft is connected to the swing arm, the lower end of the connecting shaft is connected to the upper end of the clamping shaft through a bearing, and the end surface of the lower end of the clamping shaft is used to contact the product.

7. The ink overflow wiping device according to claim 1, characterized in that: The wiping cloth feeding mechanism includes a winding feeder, a winding motor that drives the winding feeder to rotate to wind up the wiping cloth, an unwinding feeder, and an unwinding motor that drives the unwinding feeder to rotate to unwind the wiping cloth. One end of the wiping cloth is wound on the winding feeder, and the other end is wound on the unwinding feeder after turning around at the wiping surface.

8. The ink overflow wiping device according to claim 7, characterized in that: The rewinding feeder and the unwinding feeder are respectively located above and below the linear drive mechanism of the wiping head; The wiping cloth feeding mechanism also includes a wiping cloth pressing down cylinder and a wiping cloth lifting cylinder extending along the X-axis direction, the wiping cloth pressing down cylinder and the winding feeder are located above the wiping head linear drive mechanism, the wiping cloth lifting cylinder and the unwinding feeder are located below the wiping head linear drive mechanism, the wiping cloth pressing down cylinder is used to press the wiping cloth down to near the top of the wiping head and then tilt it to the wiping surface, and the wiping cloth lifting cylinder is used to push the wiping cloth up to near the bottom of the wiping head and then tilt it to the wiping surface.

9. The ink overflow wiping device according to claim 1, characterized in that: The number of the wiping heads and the rotating clamping structures are both multiple and are arranged along the X-axis direction. Each wiping head is equipped with a wiping cloth. The wiping head linear drive mechanism is connected to each of the wiping heads at the same time to drive each of the wiping heads to move synchronously. The product linear drive mechanism is connected to each of the rotating clamping structures at the same time to drive each of the products to move synchronously.

10. A method for wiping overflowed ink, characterized in that: Based on the ink overflow wiping device of claim 1, the contour around the product is divided into sections: each straight edge corresponds to a section, and each corner is divided into multiple sections; The method comprises: Body wiping step: adjusting the height of the wiping head to a first height, the wiping head linear drive mechanism moves along the Y-axis direction to make the wiping cloth pre-pressed and contact with the body of the product, the product linear drive mechanism moves back and forth along the X-axis direction with the rotating clamping structure to wipe a specific section, and after wiping a section, the product is rotated by the rotating clamping structure to select the next section for wiping until all sections are wiped; Steps for wiping the corner by leaning forward: adjust the height of the wiping head to the second height, the linear drive mechanism of the wiping head moves along the Y-axis direction to make the wiping cloth pre-pressed and contact with the arc of the product, the linear drive mechanism of the product moves back and forth along the X-axis direction with the rotating clamping structure to wipe the specific section, and after wiping each section, rotate the product through the rotating clamping structure to select the next section to wipe until all sections are wiped.

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