Screen printing scraper coping device

Abstract

The utility model belongs to the technical field of photovoltaic glass production equipment, and particularly relates to a silk-screen printing scraper coping device which comprises a workbench, a vacuum cover, a scraper, a clamping and positioning mechanism, a grinding mechanism, a linear guide rail and an electric control driving mechanism, and the clamping and positioning mechanism, the grinding mechanism, the linear guide rail and the electric control driving mechanism are installed at the top end of the workbench. The working table comprises a left table body and a right table body; the left table body and the right table body extend in the front-back direction. A synchronous belt mounting groove is formed in the middle of the right table body and penetrates through the upper surface of the right table body from front to back; a driving motor mounting notch is formed in the front end of the right table body, and an opening in the front end of the synchronous belt mounting groove is communicated with the driving motor mounting notch. The clamping and positioning mechanism, the grinding mechanism and the electric control driving mechanism are installed on the workbench, the grinding mechanism moves along the guide rail under the action of the electric control driving mechanism, the scraper is ground through the grinding wheel, the edge of the silk-screen printing scraper can be ground flat, and the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic glass production equipment, and specifically relates to a screen printing glass production related facility, in particular to a screen printing scraper grinding device. Background Art

[0002] With the development of photovoltaic rolled glass production, screen-printed glass with better light conversion efficiency has attracted more and more attention. Just like the production of other products will be accompanied by more or less problems, the screen printing process is no exception. The key process of screen printing is to first apply glue to the printing plate, and then use a scraper to scrape off the excess glue. In this process, there are special requirements for the material of the tool. If it is too soft, the glue cannot be scraped off, and if it is too hard, it will cause damage to the printing plate and glass. The common practice in the prior art is to first use a rubber-based plate to make a long strip, and then clamp it on both sides with a thin stainless steel plate to make a tool, and use the elasticity and softness of the rubber material to scrape off the glue.

[0003] However, with continuous scraping and grinding, the blade edge of the scraper will continue to wear and age, resulting in uneven scraping, residues, vertical lines, and unclear printing boundaries. Therefore, the blade edge should be ground regularly or irregularly to expose new stubble and make it flat and smooth to achieve the best state. In addition, it is difficult to grasp the overall flatness of the ground blade. If it is ground manually, there will be a large error, the effect is often not good, the grinding time is long but the use time is short, it is labor-intensive and affects the product quality.

[0004] Therefore, in order to solve this problem, a more advanced and reliable grinding method is needed, which can reduce the grinding time and increase the use time of the scraper after grinding, and has the characteristics of easy operation and guaranteed product printing quality. Utility Model Content

[0005] The utility model provides a screen printing scraper grinding device, which can realize the grinding of the screen printing scraper edge by installing a clamping positioning mechanism, a grinding mechanism and an electric control driving mechanism on a workbench, and grinding the scraper with a grinding wheel under the action of the electric control driving mechanism, thereby improving the grinding efficiency, eliminating the misjudgment caused by manual grinding, and solving the hidden dangers caused by the residue of material liquid on the printing plate in the screen printing process due to the wear and aging of the scraper edge and the problem of unclear printing effect.

[0006] Based on the above purpose, the utility model adopts the following technical solutions:

[0007] A screen printing scraper grinding device comprises a workbench, a vacuum cover, a scraper, and a clamping and positioning mechanism, a grinding mechanism, a linear guide rail and an electric control drive mechanism installed on the top of the workbench;

[0008] The workbench comprises a left platform body and a right platform body; both the left platform body and the right platform body extend in the front-rear direction;

[0009] A synchronous belt installation groove is provided in the middle of the right platform body, and the synchronous belt installation groove runs through the upper surface of the right platform body from front to back; the synchronous belt installation groove is open at the front and back; a drive motor installation notch is provided at the front end of the right platform body, and the opening at the front end of the synchronous belt installation groove is connected to the drive motor installation notch;

[0010] The clamping and positioning mechanism is installed at the top of the left platform; the clamping and positioning mechanism can move left and right, front and back at the top of the left platform;

[0011] The linear guide rails are provided with two left and right ones, and both of the linear guide rails extend forward and backward in the horizontal direction, and the left and right linear guide rails are respectively arranged at the top of the right platform body and on the left and right sides of the synchronous belt installation groove;

[0012] The grinding mechanism includes a top panel, a bottom panel, a connecting plate, a grinding motor, a vertical lead screw and four columns; the grinding mechanism is installed on the top of the right platform through a linear guide rail, and the grinding mechanism can move forward and backward relative to the right platform along the linear guide rail;

[0013] The scraper includes a scraper blade and clamping plates clamped on the left and right sides of the scraper blade; the scraper blade and the clamping plates extend forward and backward in the horizontal direction; the scraper is detachably mounted on the top of the clamping and positioning mechanism;

[0014] The grinding mechanism also includes a grinding wheel, which can grind the scraper;

[0015] The vacuum cover includes a large semicircular cover plate and a strip plate arranged on the right side of the cover plate; the vacuum cover can be detachably installed on the grinding mechanism, and the vacuum cover can be covered on the top of the grinding wheel;

[0016] The electric control drive mechanism includes a drive motor, a synchronous belt, a driven wheel, a rear proximity switch, a front proximity switch and an electric control box;

[0017] The electric control drive mechanism can control the grinding mechanism to move forward and backward relative to the right platform along the linear guide rail.

[0018] Furthermore, the left platform and the right platform have the same front-to-back length, the same left-to-right width, and the height of the right platform is greater than that of the left platform; the left platform and the right platform are integrally formed.

[0019] Further, the clamping and positioning mechanism includes a front L-shaped support frame, a rear L-shaped support frame, a left clamping arm, a right clamping arm, a clamping screw, and a fastening nut;

[0020] The front L-shaped support frame is located at the front side of the right clamping arm, the rear L-shaped support frame is located at the rear side of the right clamping arm, and the right clamping arm is detachably connected to the left platform body through the front L-shaped support frame and the rear L-shaped support frame.

[0021] Further, the left clamping arm and the right clamping arm both extend forward and backward in the horizontal direction;

[0022] The left clamping arm comprises a left vertical portion, a first bent portion connected to the top end of the left vertical portion, and a second bent portion connected to the bottom end of the left vertical portion, and a first clamping portion is provided at the top end of the first bent portion; the right clamping arm comprises a right vertical portion, a third bent portion connected to the top end of the right vertical portion, and a fourth bent portion connected to the bottom end of the right vertical portion, and a second clamping portion is provided at the top end of the third bent portion;

[0023] The bottom end of the second bending portion of the left clamping arm and the bottom end of the fourth bending portion of the right clamping arm are hinged through a rotating shaft.

[0024] Specifically, a left hinge ring is provided at the bottom end of the second bending portion, and a right hinge ring is provided at the bottom end of the fourth bending portion, and the hinge connection between the bottom end of the second bending portion and the bottom end of the fourth bending portion is achieved by sequentially passing the left hinge ring and the right hinge ring through the rotating shaft;

[0025] A first through hole is provided on the left vertical portion of the left clamping arm, and a second through hole is provided on the right vertical portion of the right clamping arm at a position corresponding to the first through hole;

[0026] The clamping screw extends horizontally to the left and right, a clamping hand wheel is provided at the left end of the clamping screw, the right end of the clamping screw passes through the first through hole and the second through hole in sequence from the left side to the right of the left clamping arm, and the right end of the clamping screw is threadedly connected with the fastening nut;

[0027] The front L-shaped support frame includes a front vertical moving portion and a front horizontal moving portion connected to the bottom end of the front vertical moving portion;

[0028] The rear L-shaped support frame comprises a rear vertical moving part and a rear horizontal moving part connected to the bottom end of the rear vertical moving part.

[0029] Further preferably, a tension spring is provided between the left vertical portion of the left clamping arm and the right vertical portion of the right clamping arm, and the tension spring is sleeved outside the clamping screw.

[0030] Further preferably, the left vertical portion, the first bending portion, the second bending portion, and the first clamping portion all extend forward and backward in the horizontal direction; the right vertical portion, the third bending portion, the fourth bending portion, and the second clamping portion all extend forward and backward in the horizontal direction, and the left vertical portion, the first bending portion, and the second bending portion are integrally formed; the right vertical portion, the third bending portion, and the fourth bending portion are integrally formed;

[0031] The first bending portion and the second bending portion are both bent to the right at the connection with the left vertical portion, and the third bending portion and the fourth bending portion are both bent to the left at the connection with the right vertical portion; the gap between the first clamping portion and the second clamping portion is used to clamp the scraper.

[0032] Further preferably, a clamping block is provided on a side of the first bending portion close to the third bending portion and a side of the third bending portion close to the first bending portion.

[0033] Further preferably, in order to control the distance between the left clamping arm and the right clamping arm when clamping, and at the same time to prevent the scraper from sliding downward and to limit the scraper when clamping, a positioning rod extending to the left is also provided on the side of the right vertical portion of the right clamping arm close to the left vertical portion.

[0034] Further preferably, the first through hole, the second through hole, the clamping screw, the clamping hand wheel, the fastening nut, the tension spring, and the positioning rod are each provided with two front and rear ones.

[0035] Furthermore, a front connecting strip is provided at the front end of the right clamping arm, and a rear connecting strip is provided at the rear end of the right clamping arm.

[0036] Furthermore, the front connecting bar is fixedly connected to the front end of the right vertical portion of the right clamping arm, and the rear connecting bar is fixedly connected to the rear end of the right vertical portion of the right clamping arm.

[0037] Further preferably, the front horizontal moving part extends to the right, the front vertical moving part is provided with a first vertical long hole, the front connecting bar is provided with a first threaded hole, and the first vertical fastening bolts pass through the first threaded hole and the first vertical long hole in sequence, and through the screw connection with the nut, the relative position of the front connecting bar and the front vertical moving part can be fixed, thereby achieving the relative position of the front end of the right clamping arm and the front L-shaped support frame Fixed;

[0038] The front horizontal moving part is provided with a first long hole at the left and right positions, and a second threaded hole is provided at the front side of the top end of the left platform. The front L-shaped support frame can be fixed to the front side of the top end of the left platform by passing the first long hole at the left and right positions and the second threaded hole in sequence through the first fastening bolts at the left and right positions;

[0039] The rear horizontal moving part extends to the right, the rear vertical moving part is provided with a second vertical long hole, and the rear connecting bar is provided with a third threaded hole. The second vertical fastening bolt passes through the third threaded hole and the second vertical long hole in sequence, and is screwed with the nut to achieve the fixation of the relative position of the rear connecting bar and the rear vertical moving part, thereby achieving the fixation of the relative position of the rear end of the right clamping arm and the rear L-shaped support frame;

[0040] The rear horizontal moving part is provided with a second long hole at the left and right positions, and a fourth threaded hole is provided on the rear side of the top end of the left platform. The rear L-shaped support frame can be fixed to the rear side of the top end of the left platform by passing the second long hole at the left and right positions and the fourth threaded hole in sequence through the second fastening bolts at the left and right positions.

[0041] Furthermore, in order to be able to observe the upper and lower positions of the front end of the right clamping arm relative to the front L-shaped support frame and the rear end of the right clamping arm relative to the rear L-shaped support frame when they are adjusted, scale plates are provided on the front side of the front vertical moving part and the rear side of the rear vertical moving part, and scale plates are provided with scales.

[0042] Further, the bottom panel of the grinding mechanism is located below the top panel;

[0043] The top ends of the four columns are detachably connected to the four corners of the top panel, and the bottom ends of the four columns are detachably connected to the four corners of the bottom panel.

[0044] Specifically, the four corners of the top panel and the four corners of the bottom panel are provided with connection holes, the top ends of the four columns respectively pass through the four connection holes of the top panel, and the bottom ends of the four columns respectively pass through the four connection holes of the bottom panel, and the top ends of the four columns are detachably connected to the four corners of the top panel, and the bottom ends of the four columns are detachably connected to the four corners of the bottom panel by setting nuts at the connection points of the four columns and the connection holes in a screw connection manner or by setting clamping blocks at the connection points of the four columns and the connection holes;

[0045] The top panel, the bottom panel and four columns constitute the basic frame of the grinding mechanism.

[0046] Further, the connecting plate is located on the left side of the top panel and the bottom panel;

[0047] An upper guide block is provided at the top right side of the connecting plate, and a lower guide block is provided at the bottom right side of the connecting plate. The upper guide block and the lower guide block both extend forward and backward in the horizontal direction, and the upper guide block and the lower guide block are both detachably connected to the connecting plate. Specifically, right threaded holes are provided on the upper guide block and the lower guide block, and corresponding left threaded holes are provided on the connecting plate, and bolts and nuts are screwed together to realize the detachable connection between the upper guide block and the lower guide block and the connecting plate.

[0048] The grinding motor is fixed to the right side of the connecting plate by means of motor fastening bolts, and the output shaft of the grinding motor passes through the connecting plate to the left; the grinding wheel is arranged at the left end of the output shaft of the grinding motor;

[0049] A third through hole is provided at a position near the left end of the top panel, and a fourth lead screw hole is provided at a position of the upper guide block corresponding to the third through hole;

[0050] The vertical lead screw extends in the vertical direction, an adjustment handle is provided at the top of the vertical lead screw, the bottom end of the vertical lead screw passes through the third through hole and the fourth lead screw hole in sequence downward from the top panel, and the bottom end of the vertical lead screw is screwed to the fourth lead screw hole;

[0051] Four linear sliders are provided at the bottom end of the bottom panel, and the four linear sliders are respectively located at the four corners of the bottom end of the bottom panel;

[0052] The bottom ends of the four linear slides are all provided with a snap-in groove.

[0053] Furthermore, the upper guide block is provided with two upper guide holes that penetrate the upper guide block up and down in the front and rear directions, and the lower guide block is provided with two lower guide holes that penetrate the lower guide block up and down in the front and rear directions. The column located at the front end of the left side passes through the upper guide hole at the front end of the upper guide block and the lower guide hole at the front end of the lower guide block respectively; the column located at the rear end of the left side passes through the upper guide hole at the rear end of the upper guide block and the lower guide hole at the rear end of the lower guide block respectively.

[0054] Further preferably, in order to prevent the vertical screw from deflecting during rotation, a clamping ring is further provided on the upper surface of the top panel. The clamping ring is arranged around the third through hole, and the inner diameter of the clamping ring is slightly larger than the diameter of the third through hole. During the rotation of the vertical screw, the clamping ring can guide the rotation direction of the vertical screw to prevent deflection.

[0055] Further preferably, the front-to-back positions of the two linear sliders located on the left side of the bottom end of the bottom panel correspond, and the front-to-back positions of the card-joining grooves of the two linear sliders located on the left side of the bottom end of the bottom panel correspond; the front-to-back positions of the two linear sliders located on the right side of the bottom end of the bottom panel correspond, and the front-to-back positions of the card-joining grooves of the two linear sliders located on the right side of the bottom end of the bottom panel correspond.

[0056] Specifically, the two linear sliders on the left side of the bottom end of the bottom panel are connected to the linear guide on the left, and the two linear sliders on the right side of the bottom end of the bottom panel are connected to the linear guide on the right. The two linear sliders on the left can slide back and forth along the linear guide on the left, and the two linear sliders on the right can slide back and forth along the linear guide on the right, thereby realizing the grinding mechanism sliding back and forth along the extension direction of the left and right linear guides.

[0057] Specifically, a front synchronous belt connecting hole is provided on the front synchronous belt connecting block, and a front mounting through hole is provided on the front front side of the top surface of the bottom panel corresponding to the position of the front synchronous belt connecting hole. Bolts are inserted into the front synchronous belt connecting hole and the front mounting through hole in sequence to realize the detachable connection between the front end of the synchronous belt and the bottom panel.

[0058] Specifically, a rear synchronous belt connecting hole is provided on the rear synchronous belt connecting block, and a rear installation through hole is provided on the rear side of the top surface of the bottom panel corresponding to the position of the rear synchronous belt connecting hole. Bolts are inserted into the rear synchronous belt connecting hole and the rear installation through hole in sequence to realize the detachable connection between the rear end of the synchronous belt and the bottom panel.

[0059] Furthermore, the drive motor is arranged at the drive motor installation notch of the right platform, the output shaft of the drive motor extends to the left, the output shaft of the drive motor is provided with a driving wheel, and the position of the driving wheel corresponds to the opening position of the front end of the synchronous belt installation groove;

[0060] The synchronous belt and the driven wheel are both arranged in the synchronous belt installation groove, and the driven wheel is located at the rear end of the synchronous belt installation groove near the opening; the driven wheel is installed on the left groove wall of the synchronous belt installation groove through the rotating shaft, and the driven wheel can rotate around the rotating shaft;

[0061] A front synchronous belt connection block is provided at the front end of the synchronous belt, the front end of the synchronous belt passes forward around the driving wheel, and is installed on the front side of the top face of the bottom panel through the front synchronous belt connection block;

[0062] A rear synchronous belt connection block is provided at the rear end of the synchronous belt, and the rear end of the synchronous belt passes around the driven wheel backwards and is installed on the rear side of the top surface of the bottom panel through the rear synchronous belt connection block;

[0063] The circuit output end of the front proximity switch is connected to the first input end of the electric control box through the first control wire, and the circuit input end of the drive motor is connected to the first output end of the electric control box through the second control wire; the circuit output end of the rear proximity switch is connected to the second input end of the electric control box through the third control wire, and the circuit input end of the grinding motor is connected to the second output end of the electric control box through the fourth control wire;

[0064] A switch module is provided in the electric control box, and the first control wire and the second control wire are both electrically connected to the switch module in a single channel. By turning on or off the front proximity switch, an on or off signal is sent to the switch module through the first control wire, and at the same time, the switch module sends an on or off signal to the drive motor through the second control wire, so as to control the start and stop of the drive motor;

[0065] The third control wire and the fourth control wire are both electrically connected to the switch module in a single channel. By turning the proximity switch on or off, an on or off signal is sent to the switch module through the third control wire. At the same time, the switch module sends an on or off signal to the grinding motor through the fourth control wire, thereby controlling the start and stop of the grinding motor.

[0066] Specifically, the rear proximity switch, the front proximity switch and the electric control box are all arranged on the top surface of the right platform, and the front proximity switch and the electric control box are located near the drive motor installation notch of the right platform, and the rear proximity switch is located away from the drive motor installation notch of the right platform.

[0067] Specifically, the switch module in the utility model, as well as the electrical connection method between the first control wire, the second control wire, the third control wire, the fourth control wire and the switch module, and the signal sending and receiving method all adopt conventional components and common methods in the prior art, and are not the inventive point of the utility model, so they will not be elaborated.

[0068] Furthermore, the large semicircular cover plate includes an arc-shaped edge at the top and a straight edge at the bottom, the strip plate is perpendicular to the cover plate, and the strip plate is bent along the arc-shaped edge of the cover plate, and the side edge of the strip plate is connected to the arc-shaped edge at the top of the cover plate;

[0069] A vacuum hole is provided at the bend of the top of the strip plate, and is connected to an external vacuum device through a vacuum tube;

[0070] A vacuum hood connecting strip is provided at the front end bend of the strip plate, a vacuum hood mounting hole is provided on the vacuum hood connecting strip, and a vacuum hood fixing thread hole is provided at a position corresponding to the vacuum hood mounting hole on the connecting plate. Bolts are passed through the vacuum hood mounting hole and the vacuum hood fixing thread hole in sequence, so that the vacuum hood can be detachably installed on the left side of the connecting plate and the top of the grinding wheel, and part of the grinding wheel can be covered.

[0071] Further preferably, by adjusting the up and down positions of the connecting plate, the vacuum cover and the grinding wheel can be driven to move up and down together.

[0072] Further preferably, the distance from the cover plate to the connecting plate is greater than or equal to the sum of the length of the portion of the left end of the grinding motor output shaft extending out of the connecting plate and the left and right thicknesses of the grinding wheel.

[0073] Furthermore, based on a general inventive concept, the utility model also provides a screen printing scraper grinding method using the screen printing scraper grinding device, comprising the following steps:

[0074] (1) First adjust the clamping hand wheel so that the upper part of the right clamping arm will move away from the upper part of the left clamping arm. At this time, under the top contact of the tension spring, the upper part of the right clamping arm tends to move away from the upper part of the left clamping arm, so that a certain gap is formed between the first clamping part and the second clamping part. The scraper is placed in the gap between the first clamping part and the second clamping part, and supported from below with two positioning rods. At this time, the clamping hand wheel is rotated in the opposite direction, the upper part of the right clamping arm will move toward the upper part of the left clamping arm, and the clamping block on the first clamping part will move close to the clamping block on the second clamping part. The scraper is placed in the gap between the two clamping blocks, and the clamping hand wheel is continued to be rotated. The upper part of the right clamping arm continues to move toward the upper part of the left clamping arm. At this time, the scraper is clamped;

[0075] (2) Then, the position of the first upper and lower fastening bolts of the clamping and positioning mechanism in the first upper and lower position long hole and the position of the second upper and lower fastening bolts in the second upper and lower position long hole are adjusted, and the position of the first left and right fastening bolts in the first left and right position long hole and the position of the second left and right fastening bolts in the second left and right position long hole are adjusted, so that the left and right position of the clamping and positioning mechanism relative to the left platform can be adjusted. At the same time, by observing the scales on the scale plates on the front side of the front vertical moving part and the rear side of the rear vertical moving part, the left clamping arm, the right clamping arm and the scraper are moved to the right together to approach the grinding wheel;

[0076] Then, the adjusting handle is turned to drive the vertical screw to rotate. Since the bottom end of the vertical screw is screwed to the fourth screw hole, the upper guide block is moved up and down along the two columns on the left side by rotating the vertical screw, thereby driving the connecting plate and the grinding wheel to move up and down, so that the top blade of the scraper is close to the bottom end of the grinding wheel.

[0077] (3) Turn on the external vacuum device connected to the vacuum tube, start the grinding motor, and the grinding wheel grinds the part in contact with the scraper. At this time, by turning on the front proximity switch, the front proximity switch sends an opening signal to the switch module in the electric control box through the first control wire, and then transmits it to the drive motor through the second control wire, so that the output shaft of the drive motor rotates forward, driving the synchronous belt to rotate forward. At the same time, the synchronous belt drives the grinding mechanism and the grinding wheel to move forward along the linear guide through the front synchronous belt connecting block. At this time, the grinding wheel grinds the contact position of the scraper while moving forward. When the grinding wheel has ground the front end of the scraper, turn off the front proximity switch and the grinding motor;

[0078] Then, turn on the rear proximity switch, which sends an opening signal to the switch module in the electronic control box through the third control wire, and then transmits it to the drive motor through the fourth control wire, so that the output shaft of the drive motor rotates backward, driving the synchronous belt to rotate backward. At the same time, the synchronous belt drives the grinding mechanism and the grinding wheel to move backward along the linear guide through the rear synchronous belt connecting block. At this time, the contact position of the grinding wheel on the scraper is ground while retreating. When the grinding wheel has ground the rear end of the scraper, turn off the rear proximity switch and the grinding motor. This process is repeated to achieve grinding of the front and rear ends of the scraper.

[0079] The beneficial effects of the utility model are:

[0080] The utility model installs a clamping positioning mechanism, a grinding mechanism and an electric control driving mechanism on a workbench, and the grinding mechanism moves along a guide rail under the action of the electric control driving mechanism, and uses a grinding wheel to grind the scraper, and uses a vacuum cover to absorb and process the generated dust. Through the electric control of the electric control driving mechanism, the edge of the screen printing scraper can be smoothed, and the operation is convenient, the speed is fast, and the effect is good. The grinding efficiency is improved, the misjudgment caused by manual grinding is eliminated, and the hidden dangers caused by the residue of the material liquid on the printing plate during the screen printing process due to the wear and aging of the scraper edge and the unclear printing effect are solved, and the quality of the screen printed glass is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 It is a structural schematic diagram of the screen printing scraper grinding device of the utility model;

[0082] Figure 2It is a structural schematic diagram of the workbench described in the utility model;

[0083] Figure 3 It is a schematic diagram of the structure and position of the left clamping arm, the right clamping arm and the clamping screw of the utility model;

[0084] Figure 4 It is a structural schematic diagram of the clamping and positioning mechanism of the utility model;

[0085] Figure 5 It is a structural schematic diagram of the grinding mechanism of the utility model;

[0086] Figure 6 It is a structural schematic diagram of the electric control drive mechanism of the utility model;

[0087] Figure 7 It is a structural schematic diagram of the vacuum cover of the utility model;

[0088] Figure 8 It is a structural schematic diagram of the scraper of the utility model;

[0089] In the figure, 1: grinding mechanism, 3: clamping and positioning mechanism, 4: vacuum cover, 5: linear guide;

[0090] 101: grinding wheel, 102: linear slider, 105: grinding motor, 106: motor fastening bolt, 108: vertical screw, 111: adjustment handle, 112: clamping ring: 113: upper guide block, 114: vacuum cover fixing thread hole, 115: connecting plate, 116: top panel, 117: bottom panel, 118: column;

[0091] 201: driving motor, 202: driving wheel, 203: synchronous belt, 204: front synchronous belt connecting block, 205: rear synchronous belt connecting block, 206: driven wheel, 208: rear proximity switch, 209: front proximity switch, 211: electric control box;

[0092] 301: clamping hand wheel, 302: clamping screw, 303: left clamping arm, 304: clamping block, 305: right clamping arm, 306: positioning rod, 307: tension spring, 308: fastening nut, 309: rotating shaft, 310: front L-shaped support frame, 311: first upper and lower position long hole, 312: first upper and lower fastening bolt, 313: first left and right position long hole, 314: first left and right fastening bolt, 315: scale plate, 316: front connecting strip, 317: rear L-shaped support frame, 318: rear connecting strip;

[0093] 401: strip plate, 402: vacuum cover connecting strip, 403: vacuum cover mounting hole, 404: vacuum tube, 405: cover plate;

[0094] 601: scraper blade, 602: clamping plate;

[0095] 701: left platform, 702: right platform, 703: synchronous belt mounting groove, 704: drive motor mounting notch. DETAILED DESCRIPTION

[0096] In order to make the above-mentioned purpose, technical features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in a variety of other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0097] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0098] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense; for ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0099] Example 1

[0100] like Figure 1-8 As shown, a screen printing scraper grinding device includes a workbench, a vacuum cover 4, a scraper, and a clamping and positioning mechanism 3, a grinding mechanism 1, a linear guide rail 5 and an electric control drive mechanism installed on the top of the workbench;

[0101] like Figure 1 , 2 As shown, the workbench includes a left platform 701 and a right platform 702; the left platform 701 and the right platform 702 both extend in the front-to-back direction, the front-to-back lengths of the left platform 701 and the right platform 702 are consistent, the left-to-right widths of the left platform 701 and the right platform 702 are consistent, and the height of the right platform 702 is greater than the height of the left platform 701; in this embodiment, the left platform 701 and the right platform 702 are integrally formed;

[0102] A synchronous belt installation groove 703 is provided in the middle of the right platform 702. The synchronous belt installation groove 703 runs through the upper surface of the right platform 702 from front to back. The synchronous belt installation groove 703 is open at the front and back.

[0103] A drive motor installation notch 704 is provided at the front end of the right platform 702 , and an opening at the front end of the synchronous belt installation groove 703 is communicated with the drive motor installation notch 704 .

[0104] like Figure 1 , 3 As shown in 4, the clamping and positioning mechanism 3 is installed on the top of the left platform 701;

[0105] The clamping and positioning mechanism 3 includes a front L-shaped support frame 310, a rear L-shaped support frame 317, a left clamping arm 303, a right clamping arm 305, a clamping screw 302, and a fastening nut 308;

[0106] The front L-shaped support frame 310 is located at the front side of the right clamping arm 305, and the rear L-shaped support frame 317 is located at the rear side of the right clamping arm 305, and the right clamping arm 305 is detachably connected to the left platform 701 through the front L-shaped support frame 310 and the rear L-shaped support frame 317;

[0107] The left clamping arm 303 and the right clamping arm 305 both extend forward and backward in the horizontal direction;

[0108] The left clamping arm 303 includes a left vertical portion, a first bent portion connected to the top end of the left vertical portion, and a second bent portion connected to the bottom end of the left vertical portion, and a first clamping portion is provided at the top end of the first bent portion; the right clamping arm 305 includes a right vertical portion, a third bent portion connected to the top end of the right vertical portion, and a fourth bent portion connected to the bottom end of the right vertical portion, and a second clamping portion is provided at the top end of the third bent portion;

[0109] Specifically, in this embodiment, the left vertical portion, the first bending portion, the second bending portion, and the first clamping portion all extend forward and backward in the horizontal direction; the right vertical portion, the third bending portion, the fourth bending portion, and the second clamping portion all extend forward and backward in the horizontal direction, and the left vertical portion, the first bending portion, and the second bending portion are integrally formed; the right vertical portion, the third bending portion, and the fourth bending portion are integrally formed.

[0110] The first bending portion and the second bending portion are both bent to the right at the connection with the left vertical portion, and the third bending portion and the fourth bending portion are both bent to the left at the connection with the right vertical portion; the gap between the first clamping portion and the second clamping portion is used to clamp the scraper.

[0111] Preferably, a clamping block 304 is provided on one side of the first bending portion close to the third bending portion and on one side of the third bending portion close to the first bending portion.

[0112] The bottom end of the second bending portion of the left clamping arm 303 and the bottom end of the fourth bending portion of the right clamping arm 305 are hinged via a rotating shaft 309; specifically, a left hinge ring is provided at the bottom end of the second bending portion, and a right hinge ring is provided at the bottom end of the fourth bending portion, and the hinge connection between the bottom end of the second bending portion and the bottom end of the fourth bending portion is achieved by the rotating shaft 309 passing through the left hinge ring and the right hinge ring in sequence;

[0113] A first through hole is provided on the left vertical portion of the left clamping arm 303, and a second through hole is provided on the right vertical portion of the right clamping arm 305 at a position corresponding to the first through hole;

[0114] The clamping screw 302 extends horizontally to the left and right, and a clamping handwheel 301 is provided at the left end of the clamping screw 302. The right end of the clamping screw 302 passes through the first through hole and the second through hole from the left side of the left clamping arm 303 to the right in sequence, and the right end of the clamping screw 302 is threadedly connected to the fastening nut 308.

[0115] Further preferably, a tension spring 307 is further provided between the left vertical portion of the left clamping arm 303 and the right vertical portion of the right clamping arm 305, and the tension spring 307 is sleeved outside the clamping screw 302;

[0116] Further preferably, in order to control the distance between the left clamping arm 303 and the right clamping arm 305 when clamping, and to prevent the scraper from sliding downward and to limit the position of the scraper when clamping the scraper, a positioning rod 306 extending to the left is further provided on one side of the right vertical portion of the right clamping arm 305 close to the left vertical portion;

[0117] Further preferably, in the present embodiment, the first through hole, the second through hole, the clamping screw 302, the clamping hand wheel 301, the fastening nut 308, the tension spring 307, and the positioning rod 306 are all provided with two front and rear ones.

[0118] Before use, the tension spring 307 acts to push the upper portion of the right clamping arm 305 away from the upper portion of the left clamping arm 303, thereby forming a certain gap between the first clamping portion and the second clamping portion.

[0119] When in use, turn the clamping hand wheel 301, the upper part of the right clamping arm 305 will move toward the upper part of the left clamping arm 303, and the clamping block 304 on the first clamping part will be close to the clamping block 304 on the second clamping part, and the scraper is placed in the gap between the two clamping blocks 304, and continue to turn the clamping hand wheel 301, the upper part of the right clamping arm 305 continues to move toward the upper part of the left clamping arm 303, and the scraper is clamped.

[0120] The front end of the right clamping arm 305 is provided with a front connecting strip 316, and the rear end of the right clamping arm 305 is provided with a rear connecting strip 318;

[0121] Further preferably, in this embodiment, the front connecting bar 316 is fixedly connected to the front end of the right vertical portion of the right clamping arm 305 , and the rear connecting bar 318 is fixedly connected to the rear end of the right vertical portion of the right clamping arm 305 .

[0122] like Figure 1 , 4 As shown, the front L-shaped support frame 310 includes a front vertical moving portion and a front horizontal moving portion connected to the bottom end of the front vertical moving portion, the front horizontal moving portion extends to the right, the front vertical moving portion is provided with a first vertical position long hole 311, and the front connecting bar 316 is provided with a first threaded hole, through the first upper and lower fastening bolts 312 sequentially passing through the first threaded hole and the first vertical position long hole 311, and through the screw connection with the nut, the front connecting bar 316 and the front vertical moving portion can be fixed relative to each other, thereby realizing the fixation of the relative position of the front end of the right clamping arm 305 and the front L-shaped support frame 310;

[0123] The front horizontal moving part is provided with a first long hole 313 at the left and right positions, and a second threaded hole is provided at the front side of the top end of the left platform 701. The front L-shaped support frame 310 can be fixed to the front side of the top end of the left platform 701 by passing the first long hole 313 at the left and right positions and the second threaded hole in sequence by the first fastening bolts 314 at the left and right positions.

[0124] The rear L-shaped support frame 317 includes a rear vertical moving portion and a rear horizontal moving portion connected to the bottom end of the rear vertical moving portion, the rear horizontal moving portion extends to the right, the rear vertical moving portion is provided with a second vertical position long hole, and the rear connecting bar 318 is provided with a third threaded hole, and the second vertical position long hole is sequentially passed through the third threaded hole and the second vertical position long hole by the second vertical fastening bolt, and the rear connecting bar 318 can be fixed relative to the rear vertical moving portion by screwing with the nut, thereby fixing the relative position of the rear end of the right clamping arm 305 and the rear L-shaped support frame 317;

[0125] The rear horizontal moving part is provided with a second long hole at the left and right positions, and a fourth threaded hole is provided on the rear side of the top of the left platform 701. The rear L-shaped support frame 317 can be fixed to the rear side of the top of the left platform 701 by passing the second long hole at the left and right positions and the fourth threaded hole in sequence through the second fastening bolts at the left and right positions.

[0126] Furthermore, in order to be able to observe the upper and lower positions of the front end of the right clamping arm 305 relative to the front L-shaped support frame 310 and the rear end of the right clamping arm 305 relative to the rear L-shaped support frame 317 when they are adjusted, a scale plate 315 is provided on the front side of the front vertical moving part and the rear side of the rear vertical moving part, and a scale is provided on the scale plate 315.

[0127] like Figure 1 , 5 As shown, the grinding mechanism 1 is installed on the top of the right platform 702 through a linear guide rail 5;

[0128] The grinding mechanism 1 includes a top panel 116, a bottom panel 117, a connecting plate 115, a grinding motor 105, a vertical lead screw 108 and four columns 118; the bottom panel 117 is located below the top panel 116;

[0129] The top ends of the four columns 118 are detachably connected to the four corners of the top panel 116, and the bottom ends of the four columns 118 are detachably connected to the four corners of the bottom panel 117. Specifically, the four corners of the top panel 116 and the four corners of the bottom panel 117 are provided with connection holes, and the top ends of the four columns 118 pass through the four connection holes of the top panel 116, and the bottom ends of the four columns 118 pass through the four connection holes of the bottom panel 117. The top ends of the four columns 118 are detachably connected to the four corners of the top panel 116, and the bottom ends of the four columns 118 are detachably connected to the four corners of the bottom panel 117 by providing nuts at the connection points between the four columns 118 and the connection holes in a screw connection manner or by providing clamping blocks at the connection points between the four columns 118 and the connection holes.

[0130] The top plate 116 , the bottom plate 117 and the four columns 118 constitute a basic frame body of the grinding mechanism 1 .

[0131] The connecting plate 115 is located on the left side of the top panel 116 and the bottom panel 117;

[0132] An upper guide block 113 is provided at the top right side of the connecting plate 115, and a lower guide block is provided at the bottom right side of the connecting plate 115. The upper guide block 113 and the lower guide block both extend forward and backward in the horizontal direction, and the upper guide block 113 and the lower guide block are both detachably connected to the connecting plate 115. Specifically, right threaded holes are provided on the upper guide block 113 and the lower guide block, and corresponding left threaded holes are provided on the connecting plate 115, and bolts and nuts are screwed together to realize the detachable connection between the upper guide block 113 and the lower guide block and the connecting plate 115.

[0133] Furthermore, the upper guide block 113 is provided with two upper guide holes that penetrate the upper guide block 113 up and down in the front and rear, and the lower guide block is provided with two lower guide holes that penetrate the lower guide block up and down in the front and rear. The columns located at the front end of the left side respectively pass through the upper guide hole at the front end of the upper guide block 113 and the lower guide hole at the front end of the lower guide block; the columns located at the rear end of the left side respectively pass through the upper guide hole at the rear end of the upper guide block 113 and the lower guide hole at the rear end of the lower guide block.

[0134] The grinding motor 105 is fixed to the right side of the connecting plate 115 by means of the motor fastening bolts 106, and the output shaft of the grinding motor 105 passes through the connecting plate 115 to the left; a grinding wheel 101 is provided at the left end of the output shaft of the grinding motor 105;

[0135] A third through hole is provided at a position near the left end of the top panel 116, and a fourth lead screw hole is provided at a position of the upper guide block 113 corresponding to the third through hole;

[0136] The vertical lead screw 108 extends in the vertical direction, and an adjustment handle 111 is provided at the top of the vertical lead screw 108. The bottom end of the vertical lead screw 108 passes through the third through hole and the fourth lead screw hole in sequence downward from the top panel 116, and the bottom end of the vertical lead screw 108 is screwed to the fourth lead screw hole;

[0137] Further preferably, in order to prevent the vertical screw 108 from deflecting during rotation, a clamping ring 112 is further provided on the upper surface of the top panel 116. The clamping ring 112 is arranged around the third through hole, and the inner diameter of the clamping ring 112 is slightly larger than the diameter of the third through hole. During the rotation of the vertical screw 108, the clamping ring 112 can guide the rotation direction of the vertical screw 108 to prevent deflection.

[0138] Four linear sliders 102 are disposed at the bottom of the bottom panel 117 , and the four linear sliders 102 are respectively located at the four corners of the bottom of the bottom panel 117 ;

[0139] The bottom ends of the four linear sliders 102 are each provided with a snap-in groove, the front-to-back positions of the two linear sliders 102 located on the left side of the bottom end of the bottom panel 117 correspond, and the front-to-back positions of the snap-in grooves of the two linear sliders 102 located on the left side of the bottom end of the bottom panel 117 correspond; the front-to-back positions of the two linear sliders 102 located on the right side of the bottom end of the bottom panel 117 correspond, and the front-to-back positions of the snap-in grooves of the two linear sliders 102 located on the right side of the bottom end of the bottom panel 117 correspond.

[0140] like Figure 1 As shown, the linear guide rails 5 are provided with two left and right ones, and both linear guide rails 5 extend forward and backward in the horizontal direction. The left and right linear guide rails 5 are respectively arranged at the top of the right platform 702 and the left and right sides of the synchronous belt installation groove 703.

[0141] The two linear sliders 102 on the left side of the bottom end of the bottom panel 117 are clamped on the linear guide 5 on the left, and the two linear sliders 102 on the right side of the bottom end of the bottom panel 117 are clamped on the linear guide 5 on the right, and the two linear sliders 102 on the left can slide back and forth along the linear guide 5 on the left, and the two linear sliders 102 on the right can slide back and forth along the linear guide 5 on the right, thereby realizing the grinding mechanism 1 sliding back and forth along the extension direction of the left and right linear guides 5.

[0142] like Figure 6 As shown, the electric control drive mechanism 2 includes a drive motor 201, a synchronous belt 203, a driven wheel 206, a rear proximity switch 208, a front proximity switch 209 and an electric control box 211;

[0143] The drive motor 201 is arranged at the drive motor installation notch 704 of the right platform 702, the output shaft of the drive motor 201 extends to the left, and the output shaft of the drive motor 201 is provided with a driving wheel 202, the position of the driving wheel 202 corresponds to the opening position of the front end of the synchronous belt installation groove 703;

[0144] The synchronous belt 203 and the driven wheel 206 are both arranged in the synchronous belt installation groove 703, and the driven wheel 206 is located at the rear end of the synchronous belt installation groove 703 near the opening; the driven wheel 206 is installed on the left groove wall of the synchronous belt installation groove 703 through the rotating shaft, and the driven wheel 206 can rotate around the rotating shaft;

[0145] A front synchronous belt connection block 204 is provided at the front end of the synchronous belt 203. The front end of the synchronous belt 203 passes forward around the driving wheel 202 and is installed on the front side of the top surface of the bottom panel 117 through the front synchronous belt connection block 204.

[0146] Specifically, a front synchronous belt connecting hole is provided on the front synchronous belt connecting block 204, and a front mounting through hole is provided on the front side of the top surface of the bottom panel 117 corresponding to the position of the front synchronous belt connecting hole. Bolts are inserted into the front synchronous belt connecting hole and the front mounting through hole in sequence to realize the detachable connection between the front end of the synchronous belt 203 and the bottom panel 117.

[0147] A rear synchronous belt connection block 205 is provided at the rear end of the synchronous belt 203. The rear end of the synchronous belt 203 passes around the driven wheel 206 and is installed on the rear side of the top surface of the bottom panel 117 through the rear synchronous belt connection block 205.

[0148] Specifically, a rear synchronous belt connecting hole is provided on the rear synchronous belt connecting block 205, and a rear installation through hole is provided on the rear side of the top surface of the bottom panel 117 corresponding to the position of the rear synchronous belt connecting hole. Bolts are inserted into the rear synchronous belt connecting hole and the rear installation through hole in sequence to realize the detachable connection between the rear end of the synchronous belt 203 and the bottom panel 117.

[0149] The rear proximity switch 208, the front proximity switch 209 and the electric control box 211 are all arranged on the top surface of the right platform 702, and the front proximity switch 209 and the electric control box 211 are located near the drive motor installation notch 704 of the right platform 702, and the rear proximity switch 208 is located away from the drive motor installation notch 704 of the right platform 702;

[0150] The circuit output end of the front proximity switch 209 is connected to the first input end of the electric control box 211 through the first control wire, and the circuit input end of the drive motor 201 is connected to the first output end of the electric control box 211 through the second control wire; the circuit output end of the rear proximity switch 208 is connected to the second input end of the electric control box 211 through the third control wire, and the circuit input end of the grinding motor 105 is connected to the second output end of the electric control box 211 through the fourth control wire;

[0151] A switch module is provided in the electric control box 211, and the first control wire and the second control wire are both electrically connected to the switch module in a single channel. By turning on or off the front proximity switch 209, an on or off signal is sent to the switch module through the first control wire, and at the same time, the switch module sends an on or off signal to the drive motor 201 through the second control wire, thereby controlling the start and stop of the drive motor 201;

[0152] The third control wire and the fourth control wire are both electrically connected to the switch module in a single channel. By turning on or off the rear proximity switch 208, an on or off signal is sent to the switch module through the third control wire. At the same time, the switch module sends an on or off signal to the grinding motor 105 through the fourth control wire, thereby controlling the start and stop of the grinding motor 105.

[0153] Specifically, the switch module in the utility model, as well as the electrical connection method between the first control wire, the second control wire, the third control wire, the fourth control wire and the switch module, and the signal sending and receiving method all adopt conventional components and common methods in the prior art, and are not the inventive point of the utility model, so they will not be elaborated.

[0154] like Figure 7 As shown, the vacuum cover 4 includes a large semicircular cover plate 405 and a strip plate 401 arranged on the right side of the cover plate 405; the vacuum cover 4 is detachably mounted on the left side of the connecting plate 115, and can cover the grinding wheel 101 to prevent the grinding wheel 101 from splashing debris when working;

[0155] The semicircular cover plate 405 includes an arc-shaped edge at the top and a straight edge at the bottom, the strip plate 401 is perpendicular to the cover plate 405, and the strip plate 401 is bent along the arc-shaped edge of the cover plate 405, and the side edge of the strip plate 401 is connected to the arc-shaped edge at the top of the cover plate 405;

[0156] A vacuum hole is provided at the top bend of the strip plate 401, and is connected to an external vacuum device through a vacuum tube 404;

[0157] A vacuum cover connecting strip 402 is provided at the front end bend of the strip plate 401, and a vacuum cover mounting hole 403 is provided on the vacuum cover connecting strip 402. A vacuum cover fixing thread hole 114 is provided at a position corresponding to the vacuum cover mounting hole 403 on the connecting plate 115. Bolts are passed through the vacuum cover mounting hole 403 and the vacuum cover fixing thread hole 114 in sequence, so that the vacuum cover 4 can be detachably installed on the left side of the connecting plate 115 and the top of the grinding wheel 101, and part of the grinding wheel 101 can be covered;

[0158] Specifically, by adjusting the up and down positions of the connecting plate 115 , the vacuum cover 4 and the grinding wheel 101 can be driven to move up and down together.

[0159] Further preferably, the distance from the cover plate 405 to the connecting plate 115 is greater than or equal to the sum of the length of the portion of the left end of the output shaft of the grinding motor 105 extending out of the connecting plate 115 and the left and right thicknesses of the grinding wheel 101 .

[0160] like Figure 8 As shown, the scraper includes a scraper blade 601 and a stainless steel clamping plate 602 clamped on the left and right sides of the scraper blade 601;

[0161] The scraper blade 601 and the clamping plate 602 both extend forward and backward in the horizontal direction;

[0162] Specifically, in this embodiment, by opening countersunk holes on the scraper blade 601 and the stainless steel clamping plate 602 and screwing them together with bolts and nuts, the stainless steel clamping plate 602 can be detachably installed on the left and right sides of the scraper blade 601.

[0163] When in use, the scraper is installed between the two clamping blocks 304 on the first bend and the third bend.

[0164] The use principle of this utility model:

[0165] Before use, first install the components, specifically including: 1. Installation of the linear guide rail 5: install the two linear guide rails 5 on the top of the right platform 702 and on the left and right sides of the synchronous belt installation groove 703;

[0166] 2. Installation of the grinding mechanism 1: The top ends of the four columns 118 are screwed to the four corners of the top panel 116 using nuts, and the bottom ends of the four columns 118 are screwed to the four corners of the bottom panel 117 using nuts to form the basic frame of the grinding mechanism 1;

[0167] The two linear sliders 102 on the left side of the bottom end of the bottom panel 117 are clamped on the linear guide rail 5 on the left side, and the two linear sliders 102 on the right side of the bottom end of the bottom panel 117 are clamped on the linear guide rail 5 on the right side, so that the grinding mechanism 1 is clamped on the top of the two linear guide rails 5 and slides forward and backward along the extension direction of the left and right linear guide rails 5;

[0168] 3. Installation of the vacuum cover 4: The vacuum cover 4 can be detachably installed on the left side of the connecting plate 115 and the top of the grinding wheel 101 by passing the bolts through the vacuum cover installation hole 403 and the vacuum cover fixing thread hole 114 in sequence, and the vacuum cover 4 can be partially covered.

[0169] 4. Installation of the electric control drive mechanism 2: Install the drive motor 201 at the drive motor installation notch 704 of the right platform 702, pass the front end of the synchronous belt 203 around the driving wheel 202, and install it on the front side of the top surface of the bottom panel 117 through the front synchronous belt connecting block 204, pass the rear end of the synchronous belt 203 around the driven wheel 206 backwards, and install it on the rear side of the top surface of the bottom panel 117 through the rear synchronous belt connecting block 205;

[0170] 5. Installation of the clamping and positioning mechanism 3: The front L-shaped support frame 310 is fixed to the front side of the top of the left platform 701 by passing the first left and right fastening bolts 314 through the first left and right position long holes 313 and the second threaded holes in sequence;

[0171] The rear L-shaped support frame 317 is fixed to the rear side of the top of the left platform 701 by passing the second left and right fastening bolts through the second left and right position long holes and the fourth threaded holes in sequence;

[0172] By adjusting the position of the first left-right fastening bolt 314 in the first left-right long hole 313 and the position of the second left-right fastening bolt in the second left-right long hole, the left-right position of the clamping positioning mechanism 3 relative to the left platform 701 can be adjusted.

[0173] By adjusting the position of the first up-and-down fastening bolt 312 in the first up-and-down position slot 311 and the position of the second up-and-down fastening bolt in the second up-and-down position slot, the up-and-down position of the clamping and positioning mechanism 3 relative to the left platform 701 can be adjusted.

[0174] 6. Debugging points: Debugging is required before use. The four linear sliders 102 slide smoothly on the linear guide rail 5; the grinding mechanism 1 runs smoothly and is easy to adjust up and down; the clamping and positioning mechanism 3 is stable, and the left clamping arm 303 and the right clamping arm 305 are flexible in opening and closing.

[0175] The steps for use are as follows:

[0176] 1) First adjust the clamping hand wheel 301 so that the upper part of the right clamping arm 305 will move away from the upper part of the left clamping arm 303. At this time, under the top contact of the tension spring 307, the upper part of the right clamping arm 305 has a tendency to move away from the upper part of the left clamping arm 303, so that a certain gap is formed between the first clamping part and the second clamping part. Place the scraper in the gap between the first clamping part and the second clamping part, and use two positioning rods 306 to hold it from the bottom. At this time, the scraper is moved in the opposite direction. By turning the clamping handwheel 301, the upper part of the right clamping arm 305 will move toward the upper part of the left clamping arm 303, and the clamping block 304 on the first clamping part will be close to the clamping block 304 on the second clamping part, placing the scraper in the gap between the two clamping blocks 304, and continuing to turn the clamping handwheel 301, the upper part of the right clamping arm 305 continues to move toward the upper part of the left clamping arm 303, and the scraper is clamped at this time. Since the clamping block 304 is made of soft material, the scraper is clamped firmly and will not be damaged.

[0177] 2) Then adjust the position of the first upper and lower fastening bolts 312 of the clamping and positioning mechanism 3 in the first upper and lower position long hole 311, and the position of the second upper and lower fastening bolts in the second upper and lower position long hole, and adjust the position of the first left and right fastening bolts 314 in the first left and right position long hole 313, and the position of the second left and right fastening bolts in the second left and right position long hole, so as to adjust the left and right position of the clamping and positioning mechanism 3 relative to the left platform 701, and at the same time, by observing the scales on the scale plate 315 on the front side of the front vertical moving part and the rear side of the rear vertical moving part, make the left clamping arm 303, the right clamping arm 305 and the scraper move rightward to the grinding wheel 101 together;

[0178] Then, the adjustment handle 111 is rotated to drive the vertical screw 108 to rotate. Since the bottom end of the vertical screw 108 is screwed to the fourth screw hole, the vertical screw 108 is rotated to make the upper guide block 113 move up and down along the two columns on the left side, thereby driving the connecting plate 115 and the grinding wheel 101 to move up and down, so that the top blade of the scraper is close to the bottom end of the grinding wheel 101, thereby ensuring that the scraper and the grinding wheel 101 are in the proper position.

[0179] 3) Turn on the external vacuum device connected to the vacuum tube 404, start the grinding motor 105, and the grinding wheel 101 grinds the part in contact with the scraper. At this time, by turning on the front proximity switch 209, the front proximity switch 209 sends an opening signal to the switch module in the electric control box 211 through the first control wire, and then transmits the opening signal to the drive motor 201 through the second control wire, so that the output shaft of the drive motor 201 rotates forward, driving the synchronous belt 203 to rotate forward, and at the same time, the synchronous belt 203 drives the grinding mechanism 1 and the grinding wheel 101 to move forward along the linear guide rail 5 through the front synchronous belt connecting block 204. At this time, the grinding wheel 101 grinds the contact position of the scraper while moving forward. When the grinding wheel 101 has ground the front end of the scraper, turn off the front proximity switch 209 and the grinding motor 105;

[0180] Then, the rear proximity switch 208 is turned on again, and the rear proximity switch 208 sends an on signal to the switch module in the electric control box 211 through the third control wire, and then transmits the signal to the drive motor 201 through the fourth control wire, so that the output shaft of the drive motor 201 rotates backward, driving the synchronous belt 203 to rotate backward, and at the same time, the synchronous belt 203 drives the grinding mechanism 1 and the grinding wheel 101 to move backward along the linear guide rail 5 through the rear synchronous belt connecting block 205. At this time, the grinding wheel 101 grinds the contact position of the scraper while retreating. When the grinding wheel 101 has ground the rear end of the scraper, the rear proximity switch 208 and the grinding motor 105 are closed, and this process is repeated to achieve grinding of the front and rear ends of the scraper.

[0181] During the grinding process, the vacuuming effect of the vacuuming device will absorb the grinding debris away from the contact position between the grinding wheel 101 and the scraper.

[0182] During this period, the height of the grinding wheel 101 can be adjusted according to the grinding situation; when the grinding is completed, the grinding mechanism 1 is driven to move to the initial position of the linear guide rail 5 by turning on the front proximity switch 209 or the rear proximity switch 208, and the grinding motor 105 is stopped;

[0183] Then adjust the clamping hand wheel 301 in the reverse direction so that the upper part of the right clamping arm 305 will move away from the upper part of the left clamping arm 303. At this time, under the top contact action of the tension spring 307, the upper part of the right clamping arm 305 has a tendency to move away from the upper part of the left clamping arm 303, thereby forming a certain gap between the first clamping part and the second clamping part. Remove the scraper, and then adjust the left clamping arm 303 and the right clamping arm 305 to the initial position. Finally, turn off the vacuum device.

[0184] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A screen printing scraper grinding device, It is characterized in that It includes a workbench, a vacuum cover, a scraper, and a clamping and positioning mechanism, a grinding mechanism, a linear guide rail and an electric control drive mechanism installed on the top of the workbench; The workbench comprises a left platform body and a right platform body; both the left platform body and the right platform body extend in the front-rear direction; A synchronous belt installation groove is provided in the middle of the right platform body, and the synchronous belt installation groove runs through the upper surface of the right platform body from front to back; the synchronous belt installation groove is open at the front and back; a drive motor installation notch is provided at the front end of the right platform body, and the opening at the front end of the synchronous belt installation groove is connected to the drive motor installation notch; The clamping and positioning mechanism is installed at the top of the left platform; the clamping and positioning mechanism can move left and right, front and back at the top of the left platform; The linear guide rails are provided with two left and right ones, and both of the linear guide rails extend forward and backward in the horizontal direction, and the left and right linear guide rails are respectively arranged at the top of the right platform body and on the left and right sides of the synchronous belt installation groove; The grinding mechanism includes a top panel, a bottom panel, a connecting plate, a grinding motor, a vertical lead screw and four columns; the grinding mechanism is installed on the top of the right platform through a linear guide rail, and the grinding mechanism can move forward and backward relative to the right platform along the linear guide rail; The scraper includes a scraper blade and clamping plates clamped on the left and right sides of the scraper blade; the scraper blade and the clamping plates extend forward and backward in the horizontal direction; the scraper is detachably mounted on the top of the clamping and positioning mechanism; The grinding mechanism also includes a grinding wheel, which can grind the scraper; The vacuum cover includes a large semicircular cover plate and a strip plate arranged on the right side of the cover plate; the vacuum cover can be detachably installed on the grinding mechanism, and the vacuum cover can be covered on the top of the grinding wheel; The electric control drive mechanism includes a drive motor, a synchronous belt, a driven wheel, a rear proximity switch, a front proximity switch and an electric control box; The electric control drive mechanism can control the grinding mechanism to move forward and backward relative to the right platform along the linear guide rail.

2. The screen printing scraper grinding device according to claim 1, It is characterized in that The clamping and positioning mechanism comprises a front L-shaped support frame, a rear L-shaped support frame, a left clamping arm, a right clamping arm, a clamping screw, and a fastening nut; The front L-shaped support frame is located at the front side of the right clamping arm, the rear L-shaped support frame is located at the rear side of the right clamping arm, and the right clamping arm is detachably connected to the left platform body through the front L-shaped support frame and the rear L-shaped support frame; The left clamping arm and the right clamping arm both extend forward and backward in the horizontal direction; The left clamping arm comprises a left vertical portion, a first bent portion connected to the top end of the left vertical portion, and a second bent portion connected to the bottom end of the left vertical portion, and a first clamping portion is provided at the top end of the first bent portion; the right clamping arm comprises a right vertical portion, a third bent portion connected to the top end of the right vertical portion, and a fourth bent portion connected to the bottom end of the right vertical portion, and a second clamping portion is provided at the top end of the third bent portion; The bottom end of the second bending portion of the left clamping arm and the bottom end of the fourth bending portion of the right clamping arm are hinged via a rotating shaft; A first through hole is provided on the left vertical portion of the left clamping arm, and a second through hole is provided on the right vertical portion of the right clamping arm at a position corresponding to the first through hole; The clamping screw extends horizontally to the left and right, a clamping hand wheel is provided at the left end of the clamping screw, the right end of the clamping screw passes through the first through hole and the second through hole in sequence from the left side to the right of the left clamping arm, and the right end of the clamping screw is threadedly connected with the fastening nut; The front L-shaped support frame includes a front vertical moving portion and a front horizontal moving portion connected to the bottom end of the front vertical moving portion; The rear L-shaped support frame includes a rear vertical moving portion and a rear horizontal moving portion connected to the bottom end of the rear vertical moving portion; A tension spring is also arranged between the left vertical portion of the left clamping arm and the right vertical portion of the right clamping arm, and the tension spring is sleeved outside the clamping lead screw.

3. The screen printing scraper grinding device according to claim 2, It is characterized in that The first bending portion and the second bending portion are both bent to the right at the connection with the left vertical portion, and the third bending portion and the fourth bending portion are both bent to the left at the connection with the right vertical portion; the gap between the first clamping portion and the second clamping portion is used to clamp the scraper; The first through hole, the second through hole, the clamping screw, the clamping hand wheel, the fastening nut, the tension spring, and the positioning rod are all provided with two front and rear ones; The front end of the right clamping arm is provided with a front connecting strip, and the rear end of the right clamping arm is provided with a rear connecting strip; The front connecting strip is fixedly connected to the front end of the right vertical portion of the right clamping arm, and the rear connecting strip is fixedly connected to the rear end of the right vertical portion of the right clamping arm; The front horizontal moving part extends to the right, the front vertical moving part is provided with a first vertical long hole, and the front connecting bar is provided with a first threaded hole. The first vertical fastening bolt passes through the first threaded hole and the first vertical long hole in sequence, and is screwed with the nut to achieve the fixation of the relative position of the front connecting bar and the front vertical moving part, thereby achieving the fixation of the relative position of the front end of the right clamping arm and the front L-shaped support frame; The front horizontal moving part is provided with a first long hole at the left and right positions, and a second threaded hole is provided at the front side of the top end of the left platform. The front L-shaped support frame can be fixed to the front side of the top end of the left platform by passing the first long hole at the left and right positions and the second threaded hole in sequence through the first fastening bolts at the left and right positions; The rear horizontal moving part extends to the right, the rear vertical moving part is provided with a second vertical long hole, and the rear connecting bar is provided with a third threaded hole. The second vertical fastening bolt passes through the third threaded hole and the second vertical long hole in sequence, and is screwed with the nut to achieve the fixation of the relative position of the rear connecting bar and the rear vertical moving part, thereby achieving the fixation of the relative position of the rear end of the right clamping arm and the rear L-shaped support frame; The rear horizontal moving part is provided with a second long hole at the left and right positions, and a fourth threaded hole is provided on the rear side of the top end of the left platform. The rear L-shaped support frame can be fixed to the rear side of the top end of the left platform by passing the second long hole at the left and right positions and the fourth threaded hole in sequence through the second fastening bolts at the left and right positions.

4. The screen printing scraper grinding device according to claim 1, It is characterized in that The bottom panel of the grinding mechanism is located below the top panel; The top ends of the four columns are detachably connected to the four corners of the top panel, and the bottom ends of the four columns are detachably connected to the four corners of the bottom panel.

5. The screen printing scraper grinding device according to claim 1, It is characterized in that The connecting plate is located on the left side of the top and bottom panels; An upper guide block is provided at the top right side of the connecting plate, and a lower guide block is provided at the bottom right side of the connecting plate. The upper guide block and the lower guide block both extend forward and backward in the horizontal direction, and the upper guide block and the lower guide block are both detachably connected to the connecting plate. Specifically, right threaded holes are provided on the upper guide block and the lower guide block, and corresponding left threaded holes are provided on the connecting plate, and bolts and nuts are screwed together to realize the detachable connection between the upper guide block and the lower guide block and the connecting plate. The grinding motor is fixed to the right side of the connecting plate by means of motor fastening bolts, and the output shaft of the grinding motor passes through the connecting plate to the left; the grinding wheel is arranged at the left end of the output shaft of the grinding motor; A third through hole is provided at a position near the left end of the top panel, and a fourth lead screw hole is provided at a position of the upper guide block corresponding to the third through hole; The vertical lead screw extends in the vertical direction, an adjustment handle is provided at the top of the vertical lead screw, the bottom end of the vertical lead screw passes through the third through hole and the fourth lead screw hole in sequence downward from the top panel, and the bottom end of the vertical lead screw is screwed to the fourth lead screw hole; Four linear sliders are provided at the bottom end of the bottom panel, and the four linear sliders are respectively located at the four corners of the bottom end of the bottom panel; The bottom ends of the four linear slides are all provided with a snap-in groove; The upper guide block is provided with two upper guide holes that penetrate the upper guide block up and down at the front and rear ends, and the lower guide block is provided with two lower guide holes that penetrate the lower guide block up and down at the front and rear ends. The column located at the front end of the left side passes through the upper guide hole at the front end of the upper guide block and the lower guide hole at the front end of the lower guide block respectively; the column located at the rear end of the left side passes through the upper guide hole at the rear end of the upper guide block and the lower guide hole at the rear end of the lower guide block respectively.

6. The screen printing scraper grinding device according to claim 1, It is characterized in that The two linear sliders on the left side of the bottom end of the bottom panel are connected to the linear guide on the left, and the two linear sliders on the right side of the bottom end of the bottom panel are connected to the linear guide on the right. The two linear sliders on the left side can slide back and forth along the linear guide on the left, and the two linear sliders on the right side can slide back and forth along the linear guide on the right, thereby realizing the grinding mechanism sliding back and forth along the extension direction of the left and right linear guides.

7. The screen printing scraper grinding device according to claim 1, It is characterized in that A front synchronous belt connection hole is provided on the front synchronous belt connection block, and a front mounting through hole is provided on the front front side of the top of the bottom panel at a position corresponding to the front synchronous belt connection hole, and bolts are inserted into the front synchronous belt connection hole and the front mounting through hole in sequence to realize a detachable connection between the front end of the synchronous belt and the bottom panel; A rear synchronous belt connecting hole is provided on the rear synchronous belt connecting block, and a rear installation through hole is provided on the rear side of the top surface of the bottom panel corresponding to the position of the rear synchronous belt connecting hole. Bolts are inserted into the rear synchronous belt connecting hole and the rear installation through hole in sequence to realize the detachable connection between the rear end of the synchronous belt and the bottom panel.

8. The screen printing scraper grinding device according to claim 1, It is characterized in that The drive motor is arranged at the drive motor installation notch of the right platform body, the output shaft of the drive motor extends to the left, the output shaft of the drive motor is provided with a driving wheel, the position of the driving wheel corresponds to the opening position of the front end of the synchronous belt installation groove; The synchronous belt and the driven wheel are both arranged in the synchronous belt installation groove, and the driven wheel is located at the rear end of the synchronous belt installation groove near the opening; the driven wheel is installed on the left groove wall of the synchronous belt installation groove through the rotating shaft, and the driven wheel can rotate around the rotating shaft; A front synchronous belt connection block is provided at the front end of the synchronous belt, the front end of the synchronous belt passes forward around the driving wheel, and is installed on the front side of the top face of the bottom panel through the front synchronous belt connection block; A rear synchronous belt connection block is provided at the rear end of the synchronous belt, and the rear end of the synchronous belt passes around the driven wheel backwards and is installed on the rear side of the top surface of the bottom panel through the rear synchronous belt connection block; The circuit output end of the front proximity switch is connected to the first input end of the electric control box through the first control wire, and the circuit input end of the drive motor is connected to the first output end of the electric control box through the second control wire; the circuit output end of the rear proximity switch is connected to the second input end of the electric control box through the third control wire, and the circuit input end of the grinding motor is connected to the second output end of the electric control box through the fourth control wire; A switch module is provided in the electric control box, and the first control wire and the second control wire are both electrically connected to the switch module in a single channel. By turning on or off the front proximity switch, an on or off signal is sent to the switch module through the first control wire, and at the same time, the switch module sends an on or off signal to the drive motor through the second control wire, so as to control the start and stop of the drive motor; The third control wire and the fourth control wire are both electrically connected to the switch module in a single channel. By turning the proximity switch on or off, an on or off signal is sent to the switch module through the third control wire. At the same time, the switch module sends an on or off signal to the grinding motor through the fourth control wire, thereby controlling the start and stop of the grinding motor.

9. The screen printing scraper grinding device according to claim 1, It is characterized in that The semicircular cover plate includes an arc-shaped edge at the top and a straight edge at the bottom, the strip plate is perpendicular to the cover plate, and the strip plate is bent along the arc-shaped edge of the cover plate, and the side edge of the strip plate is connected to the arc-shaped edge at the top of the cover plate; A vacuum hole is provided at the bend of the top of the strip plate, and is connected to an external vacuum device through a vacuum tube; A vacuum hood connecting strip is provided at the front end bend of the strip plate, a vacuum hood mounting hole is provided on the vacuum hood connecting strip, and a vacuum hood fixing thread hole is provided at a position corresponding to the vacuum hood mounting hole on the connecting plate. Bolts are passed through the vacuum hood mounting hole and the vacuum hood fixing thread hole in sequence, so that the vacuum hood can be detachably installed on the left side of the connecting plate and above the grinding wheel.

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