Plane wiping equipment

Abstract

The utility model provides plane wiping equipment which can solve the problems that in the prior art, plane wiping equipment is low in cleanliness and low in efficiency when used for wiping the surface of a product. The plane wiping equipment comprises a product conveying device, a wiping movement unit, a winding and unwinding unit and wiping cloth, the wiping movement unit comprises a wiping head, a transmission mechanism, a motor, a supporting part and a wiping head mounting plate, and the wiping head is fixedly arranged on the lower surface of the wiping head mounting plate; the transmission mechanism comprises an eccentric shaft, a connecting rod and a ball linear guide rail, a sliding rail of the ball linear guide rail is fixedly arranged on the upper surface of the wiping head mounting plate, and a sliding block of the ball linear guide rail is fixedly arranged on the lower surface of the supporting component; and the wiping head is pressed on the middle part of the wiping cloth. The sliding rail and the sliding block of the ball linear guide rail of the plane wiping mechanism are in rolling fit, the reciprocating linear motion speed of the wiping head is high, the wiping frequency is high, the product surface wiping efficiency is greatly improved, and then the product surface cleanliness is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of product wiping equipment, in particular to a plane wiping equipment for wiping the surface of a product. Background Art

[0002] Automated appearance inspection equipment has high requirements for the surface cleanliness of products. If there is a problem with the cleanliness, it will cause the equipment to misjudge and misjudge products with unclean surfaces as having poor appearance.

[0003] The wiping equipment currently used in the inspection site usually drives the wiping head to swing back and forth around the vertical axis in the horizontal plane through a driving device, thereby driving the wiping cloth pressed on the lower surface of the wiping head to wipe the product surface.

[0004] However, the use of a driving device to drive the wiping head to swing back and forth will cause sliding friction between the wiping head guide rod and the motor mounting plate. The wiping head guide rod and the motor mounting plate are both made of metal, and the friction between them is likely to generate dust, thereby affecting the cleanliness of the product surface and failing to meet the cleanliness requirements. Moreover, the sliding friction between metals is hard friction with high friction force, resulting in a slow swinging speed of the wiping head and a low reciprocating swinging wiping frequency, resulting in low product surface cleaning efficiency. Summary of the invention

[0005] The utility model provides a plane wiping device, which can solve the problems of low cleanliness and low efficiency of wiping product surfaces by plane wiping devices in the prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is a plane wiping device, comprising:

[0007] A product conveying device, used to convey the product along a first horizontal direction and capable of stopping the product at a wiping position;

[0008] A wiping motion unit, comprising a wiping head, a transmission mechanism, a motor, a support component and a wiping head mounting plate located below the support component, wherein the motor is supported on the support component, and the wiping head is fixedly mounted on the lower surface of the wiping head mounting plate; the transmission mechanism comprises an eccentric shaft, a connecting rod and a ball linear guide, wherein the upper end of the eccentric shaft is connected to the output shaft of the motor, and the lower end is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the wiping head mounting plate; the slide rail of the ball linear guide is fixedly mounted on the upper surface of the wiping head mounting plate and extends along a second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction; the slider of the ball linear guide is fixedly mounted on the lower surface of the support component;

[0009] A reeling and unreeling unit, comprising a reeling roller and an unreeling roller;

[0010] A wiping cloth, one end of which is wound on the unwinding roller, and the other end of which is wound on the winding roller, the middle part of the wiping cloth is located below the wiping head, and the wiping head is pressed on the middle part of the wiping cloth.

[0011] The support component includes an upper support component and a lower support component, and the upper support component and the lower support component are connected as a whole by a plurality of support columns arranged along the circumferential direction; the motor is arranged on the upper support component, the slider is fixedly arranged on the lower surface of the lower support component, and a through-portion for avoiding the eccentric shaft is formed on the lower support component, and a bearing for rotating with the eccentric shaft is installed in the through-portion, and the connecting rod is located on the upper surface of the wiping head mounting plate.

[0012] The wiping motion unit further comprises a lifting mechanism for driving the supporting component to rise and fall.

[0013] The wiping head is in the shape of a horizontal plate, and a plurality of rubber protrusions are densely distributed on the lower surface of the wiping head.

[0014] The flat wiping device also includes an alcohol spraying unit for spraying alcohol onto the middle portion of the wiping cloth.

[0015] The rewinding and unwinding unit further comprises a plurality of supporting rollers, wherein the plurality of supporting rollers are located between the rewinding roller and the unwinding roller, and the middle portion of the wiping cloth is wound around the supporting rollers.

[0016] The unwinding and rewinding unit also includes a driving roller group, which is located between the supporting roller and the unwinding roller. The driving roller group includes an active roller and a passive roller cooperating with the active roller. The middle part of the wiping cloth is also wound around the active roller. The active roller and the rewinding roller are synchronously driven to rotate by the unwinding and rewinding motor.

[0017] The passive roller is connected with a linear motion mechanism for driving the passive roller to linearly move to a position where the passive roller cooperates with the active roller and a position where the passive roller disengages from the active roller.

[0018] The product conveying device comprises a base and a linear module arranged on the base, and a vacuum suction cup fixture is fixedly arranged on a slider of the linear module.

[0019] Compared with the prior art, the utility model has the following advantages and positive effects:

[0020] The utility model discloses a planar wiping mechanism, wherein the transmission mechanism of the wiping motion unit comprises an eccentric shaft, a connecting rod and a ball linear guide, the upper end of the eccentric shaft is connected to the output shaft of the motor, the lower end is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the wiping head mounting plate; the slide rail of the ball linear guide is fixedly arranged on the upper surface of the wiping head mounting plate, and the slider is fixedly arranged on the lower surface of the supporting component; thus, when the motor reciprocates, the eccentric shaft is driven to reciprocate, and the reciprocating rotation of the eccentric shaft drives the wiping head mounting plate to reciprocate linearly along the second horizontal direction through the connecting rod under the cooperation of the slide rail and the slider, thus the crank-connecting rod transmission mechanism composed of the eccentric shaft and the connecting rod converts the rotational motion of the motor into the reciprocating linear motion of the wiping head mounting plate, thereby realizing the reciprocating linear motion of the wiping head along the second horizontal direction to wipe the product surface. The rails and sliders of the ball linear guide are in rolling fit, which is not easy to generate dust and has low friction, so that the wiping head can reciprocate at a fast speed and have a high wiping frequency, which greatly improves the wiping efficiency of the product surface and thus improves the cleanliness of the product surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a schematic diagram of a three-dimensional structure from a front side perspective of a flat wiping device in an embodiment of the utility model;

[0023] Figure 2 for Figure 1 A magnified view of part A;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of a flat wiping device from a back side perspective in an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the wiping motion unit in the embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the connection structure of the motor, transmission mechanism and wiping head of the wiping motion unit in the embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the connection structure of the motor, eccentric shaft and connecting rod of the wiping motion unit in the embodiment of the utility model;

[0028] Figure 7 for Figure 6 Exploded diagram of

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the eccentric shaft.

[0030] Reference numerals:

[0031] 100, frame; 200, product conveying device; 210, base; 220, linear module; 230, vacuum suction cup fixture; 300, wiping motion unit; 310, wiping head; 311, rubber protrusion; 320, eccentric shaft; 330, connecting rod; 331, first end connecting hole; 332, second end connecting hole; 340, slide rail; 350, slider; 360, motor; 370, support component; 371, upper support component; 372, lower support component; 373, Support column; 380, wiping head mounting plate; 390, coupling; 3100, connecting seat; 3110, pressure cover; 3120, lifting mechanism; 400, winding and unwinding unit; 410, winding roller; 420, unwinding roller; 430, supporting roller; 440, driving roller group; 441, active roller; 442, passive roller; 443, winding and unwinding motor; 444, belt transmission mechanism; 450, linear motion mechanism; 460, sensor; 500, wiping cloth; 600, spray tube. Implementation

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Reference Figures 1 to 8 The present embodiment provides a flat wiping device, including a frame 100 , a product conveying device 200 , a wiping motion unit 300 , a reeling and unreeling unit 400 , and a wiping cloth 500 .

[0035] The product conveying device 200 is used to convey the product along a first horizontal direction and can keep the product at a wiping position.

[0036] The wiping motion unit 300 is mounted on the frame 100, and includes a wiping head 310, a transmission mechanism, a motor 360, a support component 370, and a wiping head mounting plate 380 located below the support component 370. The motor 360 is supported on the support component 370, and the wiping head 310 is fixed on the lower surface of the wiping head mounting plate 380; the transmission mechanism includes an eccentric shaft 320, a connecting rod 330, and a ball linear guide. The upper end of the eccentric shaft 320 is connected to the output of the motor 360. The shaft connection is driven by the motor 360 to rotate reciprocatingly, and the lower end is rotatably connected to one end of the connecting rod 330, and the other end of the connecting rod 330 is rotatably connected to the wiping head mounting plate 380; the slide rail 340 of the ball linear guide is fixed on the upper surface of the wiping head mounting plate 380 and extends along the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction; the slider 350 of the ball linear guide is fixed on the lower surface of the supporting component 370, and the slider 350 cooperates with the slide rail 340.

[0037] The reeling and unreeling unit 400 includes a reeling roller 410 and an unreeling roller 420 , which are respectively located on the left and right sides of the wiping motion unit 300 , so that the middle part of the wiping cloth 500 described below can be located below the wiping head 310 and move below the wiping head 310 .

[0038] One end of the wiping cloth 500 is wound on the unwinding roller 420, and the other end is wound on the winding roller 410. The middle of the wiping cloth 500 is located below the wiping head 310, and the wiping head 310 is pressed on the middle of the wiping cloth 500. The wiping cloth 500 is driven by the rewinding and unwinding action of the rewinding and unwinding unit 400 to move the clean wiping cloth 500 to the wiping position and recycle the wiping cloth 500 after wiping. The wiping cloth 500 can be a dust-free cloth. The dust-free cloth is made of 100% polyester fiber double weave, with a soft surface, easy to wipe sensitive surfaces, no fiber loss due to friction, and has good water absorption and cleaning efficiency.

[0039] When the motor 360 drives the eccentric shaft 320 to rotate reciprocatingly, since the slider 350 is fixed on the lower surface of the supporting component 370, the supporting component 370 is fixed, and the slider 350 is fixed. The slide rail 340 of the linear guide cooperates with the slider 350, and the reciprocating rotation of the eccentric shaft 320 will drive the wiping head mounting plate 380 to perform reciprocating linear motion along the extension direction of the slide rail 340, that is, the second horizontal direction, through the connecting rod 330. In this way, the crank-connecting rod 330 transmission mechanism composed of the eccentric shaft 320 and the connecting rod 330 converts the rotational motion of the motor 360 into the reciprocating linear motion of the wiping head mounting plate 380, and then drives the wiping head 310 to reciprocate linear motion along the second horizontal direction. The wiping head 310 is pressed on the middle part of the wiping cloth 500, which will drive the wiping cloth 500 to reciprocate linear motion together to wipe the surface of the product.

[0040] Since the slide rail 340 and the slider 350 of the ball linear guide are in rolling cooperation, the friction is small, and it will not easily generate dust and affect the cleanliness of the product surface like the sliding friction between metals in the prior art; and the rolling cooperation has small friction, and the wiping head 310 can reciprocate linearly at a fast speed and a high wiping frequency, which greatly improves the wiping efficiency of the product surface and thus improves the cleanliness of the product surface.

[0041] In this embodiment, the first horizontal direction is the X direction, and the second horizontal direction is the Y direction, that is, the product conveying device 200 drives the product to move in the X direction, and the wiping head 310 drives the wiping cloth 500 to make a reciprocating linear motion in the Y direction to wipe the product. Of course, the first horizontal direction can also be the Y direction, and the first horizontal direction is the X direction, that is, the product conveying device 200 drives the product to move in the Y direction, and the wiping head 310 drives the wiping cloth 500 to make a reciprocating linear motion in the X direction to wipe the product.

[0042] Furthermore, if Figure 4 As shown, the support component 370 includes an upper support component 371 and a lower support component 372, and the upper support component 371 and the lower support component 372 are connected as a whole by a plurality of support columns 373 arranged along the circumferential direction, so that a certain installation space is formed between the upper support component 371 and the lower support component 372 to provide space for the installation of the eccentric shaft 320; the motor 360 is installed on the upper surface of the upper support component 371, the slider 350 is fixed on the lower surface of the lower support component 372, and a through portion is formed on the lower support component 372 to avoid the eccentric shaft 320; the eccentric shaft 320 passes through the lower support component 372 through the through portion, and a bearing a that rotates with the eccentric shaft 320 is installed in the through portion, and the connecting rod 330 is located on the upper surface of the wiping head mounting plate 380.

[0043] Specifically, Figures 5 to 8 As shown, the motor 360 is installed in an inverted manner, and its output shaft extends downward through the upper support component 371 to the installation space between the upper support component 371 and the lower support component 372; the upper end of the eccentric shaft 320 is connected to the output shaft of the motor 360 through the coupling 390, and the lower end is rotatably connected to one end of the connecting rod 330 through a bearing; connecting holes are provided at both ends of the connecting rod 330, and for the convenience of distinction, the two ends of the connecting rod 330 are respectively referred to as its first end and the second end, and the connecting holes at both ends are respectively referred to as the first end connecting hole 331 and the second end connecting hole 332, and the bearing b between the eccentric shaft 320 and the connecting rod 330 is provided in the first end connecting hole 331 of the connecting rod 330, the inner ring of the bearing b is interference fit with the lower end of the eccentric shaft 320, and the outer ring of the bearing b is interference fit with the first end connecting hole 331 of the connecting rod 330.

[0044] The second end of the connecting rod 330 is rotatably connected to the wiping head mounting plate 380 through a set of connecting components, and the connecting components specifically include a connecting seat 3100, a bearing c and a pressure cover 3110. The connecting seat 3100 is in an inverted T shape, which includes a bottom seat plate and a connecting shaft fixed on the bottom seat plate, and the upper end of the connecting shaft has an external thread; the bottom seat plate is fixedly connected to the wiping head mounting plate 380, and the second end connecting hole of the connecting rod 330 is sleeved on the connecting shaft of the connecting seat 3100, and the connecting shaft is also sleeved with the above-mentioned bearing c located between it and the second end connecting hole 332 of the connecting rod 330 to realize the second end of the connecting rod 330 and the connecting seat 311 0's rotational connection; to improve the reliability of the rotational connection, the connecting seat 3110 is also configured with the above-mentioned pressure cover 3110, which is annular and is screwed to the upper surface of the second end of the connecting rod 330, limiting the upward freedom of the bearing c in the connecting hole 332 at the second end of the connecting rod 330, and the upper end of the connecting shaft passes through the pressure cover 3110 upward and is fastened to the upper surface of the pressure cover 3110 with the nut, so that the connecting seat 3100 can be rotationally connected to the second end of the connecting rod 330, and the second end of the connecting rod 330 can be reliably limited in the up and down directions to prevent shaking, thereby improving the running accuracy of the ball linear guide.

[0045] In order to enable the wiping head 310 to effectively drive the wiping cloth 500 to move during wiping, and to be separated from the wiping cloth 500 when wiping is not needed, thereby achieving contact wiping of the product and separation from the product after wiping, so as to facilitate the unloading of the product after wiping, the wiping motion unit 300 in this embodiment also includes a lifting mechanism 3120, which is used to drive the support component 370 to move up and down, thereby driving the wiping cloth 500 to move up and down. When the lifting mechanism 3120 drives the support component 370 to move downward, the support component 370 drives the wiping head 310 to move downward, and presses the wiping cloth 500 (the dust-free cloth is elastic) to contact the surface of the product for wiping; when the lifting mechanism 3120 drives the support component 370 to move upward, the support component 370 drives the wiping head 310 to move upward, and the wiping cloth 500 rebounds and leaves the surface of the product.

[0046] The lifting mechanism 3120 can be specifically a vertical linear module driven by a motor, and the support component 370 is fixedly connected to the sliding component of the linear module, such as Figure 4 Of course, the lifting mechanism 3120 may also be other structures, such as a cylinder-driven lifting mechanism or a lead screw slider structure.

[0047] For the wiping head 310, if Figure 4 and Figure 5As shown, it is in the shape of a horizontal plate, and the lower surface of the wiping head 310 is densely covered with a plurality of rubber protrusions 311, so that the wiping head 310 can make the contact with the wiping cloth 500 closer, prevent the wiping head 310 from slipping with the wiping cloth 500 during reciprocating linear motion, and improve the wiping reliability; at the same time, the plurality of rubber protrusions 311 squeeze the wiping cloth 500 to contact with the product, and can also improve the contact tightness between the wiping cloth 500 and the product, and further improve the wiping effect.

[0048] In some embodiments of the utility model, the flat wiping device further includes an alcohol spraying unit for spraying alcohol onto the middle of the wiping cloth 500. By wiping the product with the wiping cloth 500 wetted with alcohol, the cleanliness of the product can be further improved, the appearance of the product can be greatly improved, the unstable factors in the detection process caused by the appearance difference can be eliminated, the misjudgment rate of the detection equipment can be reduced, and the production efficiency can be improved.

[0049] Specifically, the alcohol spray unit includes an alcohol container (not shown) and a spray pipe 600. The alcohol container is connected to a high-pressure gas source through a pipeline. A pressure regulating valve and an electromagnetic switch valve are provided on the pipeline. One end of the spray pipe 600 is connected to the alcohol container and the other end is closed. The spray pipe 600 is provided with a plurality of spray holes along its length. When the electromagnetic switch valve is opened, the high-pressure gas source drives the alcohol in the alcohol container to be sprayed out through the spray pipe 600 and sprayed on the wiping cloth 500 at the wiping position. The alcohol spray unit is also provided on the frame 100. The spray pipe 600 can be a rigid pipe for easy installation. The spray pipe 600 extends to the upper middle part of the wiping cloth 500, as shown in FIG. Figure 2 shown.

[0050] The rewinding and unwinding unit 400 may adopt an existing rewinding and unwinding roller mechanism, for example, the rewinding roller 410 is an active roller driven by a motor, and the unwinding roller 420 is a passive roller. In some embodiments of the present invention, the rewinding and unwinding unit 400 further includes a plurality of support rollers 430, which are located between the rewinding roller 410 and the unwinding roller 420, and the middle portion of the wiping cloth 500 is wound on the support rollers 430. The support rollers 430 support and redirect the wiping cloth 500, so that the wiping cloth 500 can be smoothly wound to the bottom of the wiping head 310 so as to face the product at the wiping position. Figure 1 As shown, a plurality of support rollers 430 are symmetrically arranged on the left and right sides of the wiping motion unit 300 so that the wiping cloth 500 is subjected to a balanced force.

[0051] Furthermore, if Figures 1 to 3As shown, the reeling and unwinding unit 400 further includes a driving roller group 440, which is located between the supporting roller 430 and the unwinding roller 420. The driving roller group 440 includes an active roller 441 and a passive roller 442 that cooperates with the active roller 441. The middle part of the wiping cloth 500 is also wound around the active roller 441. The active roller 441 and the reeling roller 410 are synchronously driven to rotate by the reeling and unwinding motor 443. At this time, the unwinding roller 420 and the plurality of supporting rollers 430 are all passively rotated, and the reeling and unwinding motor 443 synchronously drives the active roller 441 and the reeling roller 410 to rotate, thereby driving the unwinding roller 420 and the supporting roller 430 to rotate, thereby realizing the movement of the wiping cloth 500. The use of the reeling and unwinding motor 443 to synchronously drive the active roller 441 and the reeling roller 410 to rotate is conducive to ensuring the balanced tension of the wiping cloth 500 and improving the reliability and stability of the operation of the reeling and unwinding unit 400. The driving roller 441 is coaxially connected to the output shaft of the rewinding and unwinding motor 443 , and the rewinding roller 410 is connected to the output shaft of the rewinding and unwinding motor 443 via a belt transmission mechanism 444 .

[0052] A sensor 460 is provided between the active roller 441 and the unwinding roller 420 for detecting whether the wiping cloth 500 on the unwinding roller 420 has been completely unwound so as to replace the wiping cloth 500 with a new one in time.

[0053] like Figure 1 and Figure 2 As shown, the passive roller 442 is connected to a linear motion mechanism 450, which is used to drive the passive roller 442 to linearly move to a position that matches with the active roller 441 and a position that is separated from the active roller 441, so as to facilitate winding the wiping cloth 500 or replacing a new roll of the wiping cloth 500. The linear motion mechanism 450 can be a cylinder drive mechanism.

[0054] In some embodiments of the utility model, the product conveying device 200 includes a base 210 and a linear module 220 disposed on the base 210. A vacuum suction cup fixture 230 is fixed on the slider of the linear module 220. The product is adsorbed on the vacuum suction cup fixture 230 and is reliably positioned. The controller controls the movement of the linear module 220 so that the product can stay at the wiping position when it is conveyed to the wiping position, and continue to drive the product to move to the unloading position after the wiping is completed. Of course, the product conveying device 200 can also be other structures, such as a conveyor belt mechanism.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A flat surface wiping device, characterized in that: include: A product conveying device, used to convey the product along a first horizontal direction and capable of stopping the product at a wiping position; A wiping motion unit, comprising a wiping head, a transmission mechanism, a motor, a support component and a wiping head mounting plate located below the support component, wherein the motor is supported on the support component, and the wiping head is fixedly mounted on the lower surface of the wiping head mounting plate; the transmission mechanism comprises an eccentric shaft, a connecting rod and a ball linear guide, wherein the upper end of the eccentric shaft is connected to the output shaft of the motor, and the lower end is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the wiping head mounting plate; the slide rail of the ball linear guide is fixedly mounted on the upper surface of the wiping head mounting plate and extends along a second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction; the slider of the ball linear guide is fixedly mounted on the lower surface of the support component; A reeling and unreeling unit, comprising a reeling roller and an unreeling roller; A wiping cloth, one end of which is wound on the unwinding roller, and the other end of which is wound on the winding roller, the middle part of the wiping cloth is located below the wiping head, and the wiping head is pressed on the middle part of the wiping cloth.

2. The flat surface wiping device according to claim 1, characterized in that: The support component includes an upper support component and a lower support component, and the upper support component and the lower support component are connected as a whole by a plurality of support columns arranged along the circumferential direction; the motor is arranged on the upper support component, the slider is fixedly arranged on the lower surface of the lower support component, and a through-portion for avoiding the eccentric shaft is formed on the lower support component, and a bearing for rotating with the eccentric shaft is installed in the through-portion, and the connecting rod is located on the upper surface of the wiping head mounting plate.

3. The flat surface wiping device according to claim 1, characterized in that: The wiping motion unit further comprises a lifting mechanism for driving the supporting component to rise and fall.

4. The flat surface wiping device according to claim 1, characterized in that: The wiping head is in the shape of a horizontal plate, and a plurality of rubber protrusions are densely distributed on the lower surface of the wiping head.

5. The flat surface wiping device according to claim 1, characterized in that: The flat wiping device also includes an alcohol spraying unit for spraying alcohol onto the middle portion of the wiping cloth.

6. The flat surface wiping device according to claim 1, characterized in that: The rewinding and unwinding unit further comprises a plurality of supporting rollers, wherein the plurality of supporting rollers are located between the rewinding roller and the unwinding roller, and the middle portion of the wiping cloth is wound around the supporting rollers.

7. The flat surface wiping device according to claim 6, characterized in that: The unwinding and rewinding unit also includes a driving roller group, which is located between the supporting roller and the unwinding roller. The driving roller group includes an active roller and a passive roller cooperating with the active roller. The middle part of the wiping cloth is also wound around the active roller. The active roller and the rewinding roller are synchronously driven to rotate by the unwinding and rewinding motor.

8. The flat surface wiping device according to claim 7, characterized in that: The passive roller is connected with a linear motion mechanism for driving the passive roller to linearly move to a position where the passive roller cooperates with the active roller and a position where the passive roller disengages from the active roller.

9. The flat surface wiping device according to claim 1, characterized in that: The product conveying device comprises a base and a linear module arranged on the base, and a vacuum suction cup fixture is fixedly arranged on a slider of the linear module.

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