CN210390439U - Screen printing machine - Google Patents

Abstract

The utility model relates to the technical field of screen printing, in particular to a screen printing machine, which comprises a feeding and discharging device, a transfer device, a conveying device for conveying a carrier to move, a feeding device for supplying the carrier loaded with materials to the conveying device, a dust removing device for removing dust from the materials, a primary positioning device for positioning the materials after dust removal for the first time, a final positioning device for positioning the materials after the first time, a screen printing device for screen printing the materials after the second time and a material receiving device for receiving the carrier loaded with the printed materials output by the conveying device, the utility model has the advantages of compact operation among material supply, feeding, first time positioning, second time positioning, screen printing, blanking and material receiving, improves the efficiency of screen printing, and carries out secondary positioning on the materials through the primary positioning device and the final positioning device, the quality of screen printing is improved.

Description

Screen printing machine

Technical Field

The utility model belongs to the technical field of the screen printing technique and specifically relates to indicate a screen printing machine.

Background

Screen printing is a widely used printing technique, in which the paste is transferred to a printing material through the meshes of the image-text part of a printing plate by the extrusion of a scraper to form the image-text same as that of an original. The screen printing equipment is simple, the operation is convenient, the printing and the plate making are simple and easy, the cost is low, and the adaptability is strong. With the continuous improvement of printing technology, full-automatic printing equipment is a development trend of the screen printing industry, and although some automatic screen printing machines exist at present, the processing procedures of feeding, screen printing, blanking and the like still need to be finished manually according to the development trend, so that the processing efficiency is low, the printing precision is low, and the printing cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a screen printing machine, its degree of automation is high for the supply of material, material loading, first location, second location, screen printing, unloading and the operation between receiving the material are compact, and the screen printing's that shortens cycle has improved screen printing's efficiency widely, and carries out the secondary positioning through just positioner and final positioner to the material, has guaranteed the position precision of material, has improved screen printing's quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a screen printing machine comprises a feeding and discharging device, a transfer device, a conveying device used for conveying carriers to move, a feeding device used for supplying carriers bearing materials to the conveying device, a dust removal device used for removing dust from the materials, a primary positioning device used for positioning the materials after dust removal for the first time, a final positioning device used for positioning the materials after the first time, a screen printing device used for screen printing the materials after the second time, and a material receiving device used for receiving the carriers bearing the printed materials output by the conveying device, wherein the transfer device is used for transferring the materials after the first time to the final positioning device and transferring the printed materials to the primary positioning device, the feeding and discharging device is used for conveying the materials on the carriers conveyed by the conveying device to the dust removal device, the primary positioning device is used for positioning the materials after the first time, and the material receiving device is used for receiving the printed materials output by the conveying device, The conveying device is used for conveying printed materials borne by the primary positioning device to a carrier conveyed by the conveying device or conveying the materials subjected to dust removal to the primary positioning device.

Furthermore, the discharge end of the conveying device is provided with a limiting device used for abutting against a carrier conveyed by the conveying device, the limiting device comprises a limiting cylinder and a limiting part arranged on a piston rod of the limiting cylinder, and the limiting cylinder is used for driving the limiting part to protrude out of the conveying device.

Furthermore, the conveying device is provided with a material placing space, the feeding device comprises a material placing mechanism arranged in the material placing space in a lifting mode, a material supporting mechanism arranged at the feeding end of the conveying device and a positioning frame arranged at the feeding end of the conveying device, the material placing mechanism is located in the positioning frame and is used for bearing stacked carriers and placing the carrier at the bottommost layer on the conveying device, the positioning frame is used for positioning the stacked carriers, and the material supporting mechanism is used for supporting the carriers above the bottommost layer.

Furthermore, the discharging mechanism comprises a discharging seat positioned below the conveying device, a discharging plate arranged on the discharging seat in a sliding manner, and a lifting driver which is arranged on the discharging seat and used for driving the discharging plate to lift; the material placing plate is provided with a material clamping device, and the material clamping device is used for clamping the carrier at the bottommost layer.

Furthermore, the material clamping device comprises two material clamping components symmetrically arranged at two ends of the material discharging plate, and each material clamping component comprises a material clamping cylinder arranged at the bottom of the material discharging plate and a material clamping plate arranged on a piston rod of the material clamping cylinder; the material supporting mechanism comprises two material supporting components symmetrically arranged on two sides of the conveying device, each material supporting component comprises a material supporting seat, a material supporting cylinder arranged on the material supporting seat, a movable plate arranged on a piston rod of the material supporting cylinder and a material supporting part arranged on the movable plate, and the material supporting part is connected with the material supporting seat in a sliding mode.

Furthermore, the transfer device comprises a rotating shaft, a transfer arm, a transfer driver for driving the rotating shaft to rotate and a transfer lifter for driving the rotating shaft to lift, the middle of the transfer arm is installed on the rotating shaft, a first material suction piece and a second material suction piece for tightly sucking materials are respectively arranged at two ends of the transfer arm, and a first accommodating cavity and a second accommodating cavity for accommodating two ends of the transfer arm are respectively arranged on a positioning plane of the primary positioning device and a positioning plane of the final positioning device.

Furthermore, the primary positioning device comprises a primary positioning seat, a primary transverse positioning assembly slidably arranged on the primary positioning seat, a primary transverse movement driving mechanism for driving the primary transverse positioning assembly to position the transverse position of the material, a primary longitudinal positioning assembly slidably arranged on the primary positioning seat, and a primary longitudinal movement driving mechanism for driving the primary longitudinal positioning assembly to position the longitudinal position of the material.

Furthermore, the primary positioning device, the dust removal device and the conveying device are all provided with lifting and material-sucking devices which are used for sucking materials tightly and driving the materials to ascend and descend, and each lifting and material-sucking device comprises a material-sucking lifting piece and a material-sucking lifting driving mechanism which is used for driving the material-sucking lifting piece to ascend and descend in a sliding mode.

Furthermore, the final positioning device comprises a final positioning seat arranged below the screen printing device, a final transverse positioning assembly arranged on the final positioning seat in a sliding manner, a final transverse movement driving mechanism used for driving the final transverse positioning assembly to position the transverse position of the material after the first positioning, a final longitudinal positioning assembly arranged on the final positioning seat in a sliding manner, and a final longitudinal movement driving mechanism used for driving the final longitudinal positioning assembly to position the longitudinal position of the material after the first positioning; and a plurality of material suction holes are formed in the positioning plane of the final positioning seat.

Furthermore, the number of the primary transverse positioning assemblies and the number of the primary longitudinal positioning assemblies are two, and the primary transverse positioning assemblies and the primary longitudinal positioning assemblies are matched in a one-to-one correspondence mode to perform primary positioning on the material; the number of the final transverse positioning assemblies and the number of the final longitudinal positioning assemblies are two, and the final transverse positioning assemblies and the final longitudinal positioning assemblies are matched in a one-to-one correspondence mode to perform secondary positioning on the materials after primary positioning.

The utility model has the advantages that: in actual work, a feeding device supplies carriers carrying a plurality of orderly placed materials to be printed to a conveying device, the conveying device conveys the carriers to a set position, a loading and unloading device conveys the materials to be printed on the carriers conveyed by the conveying device to a dust removal device, the dust removal device removes dust of the materials, the materials after dust removal are conveyed to a primary positioning device through the loading and unloading device, the primary positioning device performs primary positioning on the materials after dust removal, after the materials after dust removal are positioned for the first time, a transfer device transfers the materials after the primary positioning to a final positioning device, the final positioning device performs secondary positioning on the materials after the primary positioning, a screen printing device performs screen printing on the materials after the secondary positioning, at the moment, the loading and unloading device conveys another material to the dust removal device, and the dust removal device removes dust of the materials, the material after dust removal is conveyed to a positioning plane of a primary positioning device through a feeding and discharging device, the primary positioning device performs primary positioning on the material to be printed, when the material on the initial positioning device is positioned for the first time and the material on the final positioning device is subjected to screen printing, the transferring device drives the printed material and the material positioned for the first time to exchange positions, so that the printed material is placed on the initial positioning device, the material after the first positioning is placed on the final positioning device, and then the feeding and discharging device picks up the printed materials on the primary positioning device to the empty position of the carrier conveyed by the conveying device, and then sequentially picks up the materials to be printed on the carrier to the positioning planes of the dust removal device and the primary positioning device for dust removal treatment and primary positioning respectively, and the operations are repeated, so that the continuous screen printing processing of the materials is realized. After the carriers conveyed by the conveying device are filled with the printed materials, the conveying device conveys the carriers to the material receiving device, the material receiving device collects the carriers, and meanwhile, the feeding device supplies the carriers filled with the materials to be printed to the conveying device, so that automatic feeding and material receiving are realized, and the screen printing efficiency is improved. The utility model has the advantages of reasonable design, degree of automation is high for supply, material loading, first location, second location, screen printing, unloading of material and the operation compactness between receiving the material, the screen printing's that shortens cycle has improved screen printing's efficiency widely, and carries out the secondary location to the material through just positioner and final positioner, has guaranteed the position precision of material, has improved screen printing's quality.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the hidden frame of the present invention.

Fig. 3 is a schematic perspective view of the carrier, the limiting device, the conveying device and the feeding device of the present invention.

Fig. 4 is a schematic perspective view of the limiting device, the conveying device and the feeding device of the present invention.

Fig. 5 is a schematic perspective view of the feeding device of the present invention.

Fig. 6 is a schematic perspective view of the limiting device of the present invention.

Fig. 7 is the three-dimensional structure diagram of the feeding and discharging manipulator of the initial positioning device, the final positioning device, the screen printing device, the transferring device and the second of the utility model.

Fig. 8 is a schematic view of the three-dimensional structure of the feeding and discharging manipulator of the initial positioning device, the final positioning device, the transferring device and the second of the present invention.

Fig. 9 is a schematic perspective view of the primary positioning device and the final positioning device of the present invention.

Fig. 10 is an exploded schematic view of the primary positioning device of the present invention.

Fig. 11 is an exploded schematic view of the final positioning device of the present invention.

Fig. 12 is a schematic perspective view of the transfer arm, the first material suction member and the second material suction member of the present invention.

Description of reference numerals:

11. a conveying device; 111. a material placing space; 12. a feeding device; 121. a discharging mechanism; 1211. a material placing seat; 1212. a material placing plate; 1213. a lift drive; 1214. a lateral adjustment groove; 1215. a guide bar; 1221. a material supporting component; 1222. a material supporting seat; 1223. a material supporting cylinder; 1224. moving the plate; 1225. a material supporting part; 1226. an adjustment hole; 123. a corner bracket; 1241. a material clamping component; 1242. a material clamping cylinder; 1243. a material clamping plate; 1244. a longitudinal adjustment groove; 13. a limiting device; 131. a limiting cylinder; 132. a limiting member; 133. an adjustment plate; 134. a limiting plate; 135. an adjustment groove; 14. a carrier; 2. a primary positioning device; 21. a first accommodating cavity; 22. a primary positioning seat; 221. a transverse chute; 222. a longitudinal chute; 23. a primary transverse positioning assembly; 231. a first primary transverse slider; 232. a second primary transverse slide block; 233. a first transverse positioning rod; 234. a second transverse positioning rod; 24. a primary traverse driving mechanism; 25. a primary longitudinal positioning assembly; 251. a first primary longitudinal slide; 252. a second primary longitudinal slide block; 253. a first longitudinal positioning rod; 254. a second longitudinal positioning rod; 26. a primary longitudinal movement driving mechanism; 27. a material suction lifting member; 28. a material suction lifting driving mechanism; 3. a final positioning device; 31. a second accommodating cavity; 32. a final positioning seat; 321. a suction hole; 33. a final transverse positioning assembly; 34. a final traverse driving mechanism; 35. a final longitudinal positioning assembly; 36. a final longitudinal movement driving mechanism; 4. a screen printing device; 5. a transfer device; 51. a transfer arm; 52. a first suction member; 53. a second suction member; 54. a rotating shaft; 55. a transfer driver; 56. a transfer riser; 6. a loading and unloading device; 60. a first feeding and discharging manipulator; 61. a longitudinal movement driver; 62. an up-down driver; 63. loading and unloading the material; 64. a support plate; 65. a feeding and discharging suction nozzle; 66. a second feeding and discharging manipulator; 7. a material lifting device; 8. a material receiving device; 9. a dust removing device.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 12, the present invention provides a screen printing machine, which comprises a frame, a loading and unloading device 6, a transferring device 5, a conveying device 11 for conveying a carrier 14 to move, a feeding device 12 for supplying a carrier 14 carrying a material to the conveying device 11, a dust removing device 9 for removing dust from the material, a primary positioning device 2 for performing a first positioning on the material after dust removal, a final positioning device 3 for performing a second positioning on the material after the first positioning, a screen printing device 4 for performing screen printing on the material after the second positioning, and a receiving device 8 for receiving the carrier 14 carrying the printed material output by the conveying device 11, wherein the transferring device 5 is used for transferring the material after the first positioning to the final positioning device 3 and transferring the printed material to the primary positioning device 2, the loading and unloading device 6 is used for conveying the materials on the carriers 14 conveyed by the conveying device 11 to the dust removing device 9, conveying the printed materials carried by the primary positioning device 2 to the carriers 14 conveyed by the conveying device 11, or conveying the dust-removed materials to the primary positioning device 2. Specifically, material collecting device 8 and feedway 12 are located conveyor 11's discharge end and feed end respectively, dust collector 9 is located conveyor 11's one side, first positioner 2 is located one side of dust collector 9, first positioner 2 sets up side by side with final positioner 3, transfer device 5 is located between first positioner 2 and the final positioner 3, screen printing device 4 is located the top of final positioner 3. In this example, the material is described by taking a glass sheet as an example.

In actual work, a feeding device 12 supplies carriers 14 carrying a plurality of sequentially placed materials to be printed to a conveying device 11, the conveying device 11 conveys the carriers 14 to a set position, a loading and unloading device 6 conveys the materials to be printed on the carriers 14 conveyed by the conveying device 11 to a dust removal device 9, the dust removal device 9 removes dust of the materials, the materials after dust removal are conveyed to a primary positioning device 2 through the loading and unloading device 6, the primary positioning device 2 performs primary positioning on the materials after dust removal, after the materials after dust removal are positioned for the first time, a transfer device 5 transfers the materials after the primary positioning to a final positioning device 3, the final positioning device 3 performs secondary positioning on the materials after the primary positioning, a screen printing device 4 performs screen printing on the materials after the secondary positioning, at this time, the loading and unloading device 6 conveys the other materials to the dust removal device 9, the dust removing device 9 removes dust from the material, the material after dust removal is conveyed to the positioning plane of the primary positioning device 2 through the feeding and discharging device 6, the primary positioning device 2 performs the first positioning on the material to be printed, after the material on the primary positioning device 2 is positioned for the first time and the material on the final positioning device 3 is subjected to screen printing, the transferring device 5 drives the printed material to exchange positions with the material after the first positioning, so that the printed material is placed on the primary positioning device 2, the material after the first positioning is placed on the final positioning device 3, then the printed material on the primary positioning device 2 is picked up to the empty position of the feeding and discharging carrier 14 conveyed by the conveying device 11 by the transferring device 6, then the material to be printed on the carrier 14 is sequentially picked up to the positioning planes of the dust removing device 9 and the primary positioning device 2 to perform dust removal treatment and the first positioning respectively, and repeating the operation, thereby realizing the uninterrupted screen printing processing of the materials. When the carriers 14 conveyed by the conveying device 11 are filled with the printed materials, the conveying device 11 conveys the carriers 14 to the receiving device 8, the receiving device 8 collects the carriers 14, and the feeding device 12 supplies the carriers 14 filled with the materials to be printed to the conveying device 11, so that automatic feeding and receiving are realized, and the screen printing efficiency is improved. The utility model has the advantages of reasonable design, degree of automation is high for supply, material loading, first location, second location, screen printing, unloading of material and the operation compactness between receiving the material, the screen printing's that shortens cycle has improved screen printing's efficiency widely, and carries out the secondary location to the material through just positioner 2 and final positioner 3, has guaranteed the position precision of material, has improved screen printing's quality.

In this embodiment, the discharge end of the conveying device 11 is provided with a limiting device 13 for abutting against the carrier 14 conveyed by the conveying device 11, the limiting device 13 includes a limiting cylinder 131 and a limiting member 132 installed on a piston rod of the limiting cylinder 131, and the limiting cylinder 131 is used for driving the limiting member 132 to protrude out of the upper surface of the conveying device 11. In actual use, the limiting device 13 limits the carrier 14 conveyed by the conveying device 11, so as to ensure the position accuracy of the carrier 14 on the conveying device 11 and avoid the carrier 14 from deviating under the action of inertia; when the conveying device 11 needs to convey the carrier 14 to the next station, the limiting cylinder 131 drives the limiting member 132 to move downwards, so that the limiting member 132 does not abut against the carrier 14, and the conveying device 11 conveys the carrier 14 to the material receiving device 8, so that the material receiving device 8 can collect the carrier 14. In addition, when the conveying device 11 is provided with two carriers 14, and the loading and unloading device 6 needs to take the materials on the two carriers 14 simultaneously or needs to place the printed materials on the two carriers 14 simultaneously, the limiting cylinder 131 of the limiting device 13 drives the limiting member 132 to move upwards, so that the limiting member 132 abuts against one carrier 14 on the conveying device 11 close to the material receiving device 8, and the carrier 14 is positioned, the position accuracy of the carrier 14 is ensured, and the loading and unloading device 6 is convenient to take and place the materials. For example, the following steps are carried out: if a plurality of rows of materials are loaded on the carriers 14, the loading and unloading device 6 takes two rows of materials on the carriers 14 each time, when the loading and unloading device 6 needs to take two adjacent rows of materials on two carriers 14, the limiting device 13 abuts against one carrier 14 on the conveying device 11 close to the material receiving device 8, so that the loading and unloading device 6 can accurately take one row of materials on two carriers 14 respectively.

Preferably, the limiting member 132 comprises an adjusting plate 133 mounted on the piston rod of the limiting cylinder 131 and a limiting plate 134 mounted on the adjusting plate 133, the adjusting plate 133 is provided with an adjusting groove 135 for adjusting the position of the limiting plate 134, and the length direction of the adjusting groove 135 is parallel to the conveying direction of the conveying device 11; specifically, the limiting plate 134 is L-shaped. The position of the limiting plate 134 on the adjusting plate 133 is adjusted through the adjusting groove 135, so that the limiting of carriers 14 with different specifications is facilitated.

In this embodiment, the conveying device 11 is provided with a material placing space 111, the material supplying device 12 includes a material placing mechanism 121 arranged in the material placing space 111 in a lifting manner, a material supporting mechanism arranged at a feeding end of the conveying device 11, and a positioning frame arranged at the feeding end of the conveying device 11, the material placing mechanism 121 is located in the positioning frame, the material placing mechanism 121 is used for bearing the stacked carriers 14 and placing the carriers 14 at the bottom layer on the conveying device 11, the positioning frame positions the stacked carriers 14, and the material supporting mechanism is used for supporting the carriers 14 above the bottom layer.

During actual work, a plurality of carriers 14 carrying materials are stacked on the discharging mechanism 121, and the stacked carriers 14 are positioned by the positioning frame so as to ensure the position accuracy of the carriers 14; when the carriers 14 are supplied to the conveying device 11, the material supporting mechanism supports the carriers 14 above the bottommost layer on the material placing mechanism 121, then the material placing mechanism 121 conveys the carriers 14 at the bottommost layer to the conveying device 11, the conveying device 11 conveys the carriers 14 to a set position, and the limiting device 13 abuts against the carriers 14 conveyed by the conveying device 11 to limit the carriers 14 on the conveying device 11, so that the position accuracy of the carriers 14 on the conveying device 11 is ensured, and the accuracy and the stability of the material picking device 6 for picking the materials on the carriers 14 are improved. When it is necessary to supply the carriers 14 to the conveying device 11 again, the discharging mechanism 121 is raised to carry the stacked carriers 14 supported by the supporting mechanism, the supporting mechanism releases the stacked carriers 14, the discharging mechanism 121 is lowered to drive the stacked carriers 14 to be lowered by the height of one carrier 14 as a whole, then the supporting mechanism supports the carriers 14 above the bottommost layer on the discharging mechanism 121, the discharging mechanism 121 conveys the carriers 14 at the bottommost layer to the conveying device 11, the conveying device 11 conveys the carriers 14 to a set position, and the operation is repeated, so that the carriers 14 are automatically supplied to the conveying device 11. This feedway 12 is automatic and supply carrier 14 to conveyor 11 in an orderly manner, and degree of automation is high, has reduced the cost of labor, has improved the efficiency of supply carrier 14, it is spacing to carry out carrier 14 on conveyor 11 through stop device 13, carrier 14 position accuracy on conveyor 11 has been guaranteed, rethread locating rack is fixed a position range upon range of carrier 14, the position accuracy and the stability of carrier 14 of waiting to carry have not only been guaranteed, still be convenient for the operator to add carrier 14 in the locating rack, and do not influence at the in-process that adds carrier 14 the utility model discloses a normal work.

In this embodiment, the material discharging mechanism 121 includes a material discharging seat 1211 located below the conveying device 11, a material discharging plate 1212 slidably disposed on the material discharging seat 1211, and a lifting driver 1213 installed on the material discharging seat 1211 and used for driving the material discharging plate 1212 to lift; specifically, the discharging plate 1212 is slidably connected to the discharging seat 1211 via a guide rod 1215, and the lifting driver 1213 drives the discharging plate 1212 to move up and down by using a motor-driven lead screw structure. In actual operation, the lifting driver 1213 drives the discharging plate 1212 to move up and down, and the guide rod 1215 plays a guiding role, so that the discharging plate 1212 can be lifted up and down stably.

In this embodiment, the material placing plate 1212 is provided with a material clamping device, and the material clamping device is used for clamping the carrier 14 at the bottommost layer; specifically, the material clamping device includes two material clamping assemblies 1241 symmetrically disposed at two ends of the material placing plate 1212, and each material clamping assembly 1241 includes a material clamping cylinder 1242 installed at the bottom of the material placing plate 1212 and a material clamping plate 1243 installed at a piston rod of the material clamping cylinder 1242.

When the material holding mechanism holds up the carriers 14 above the bottommost layer, the material clamping cylinders 1242 on the material holding plate 1212 drive the material clamping plates 1243 to move close to the carriers 14 at the bottommost layer until the material clamping plates 1243 abut against the carriers 14 at the bottommost layer, so that the material clamping plates 1243 of the two material clamping assemblies 1241 clamp the carriers 14 at the bottommost layer, and then the lifting driver 1213 drives the material holding plate 1212 together with the carriers 14 at the bottommost layer to move close to the conveying device 11 until the carriers 14 at the bottommost layer are conveyed to a set position through the conveying device 11. In the process that the material placing mechanism 121 drives the carrier 14 at the bottom layer to move downwards, the material clamping device clamps the carrier 14, so that the carrier 14 is prevented from deviating in the process of moving downwards, and the position accuracy of the carrier 14 is ensured.

Preferably, the material placing plate 1212 is provided with a transverse adjusting slot 1214 for adjusting the position of the material clamping cylinder 1242, the transverse adjusting slot 1214 is arranged along the length direction of the material placing plate 1212, and the position of the material clamping cylinder 1242 on the material placing plate 1212 is adjusted through the transverse adjusting slot 1214, that is, the distance between the two material clamping cylinders 1242 is adjusted, so as to adjust the distance between the two material clamping plates 1243, so as to clamp carriers 14 with different lengths; the material clamping plate 1243 is provided with a longitudinal adjusting slot 1244, and the height of the material clamping plate 1243 protruding out of the material placing plate 1212 is adjusted through the longitudinal adjusting slot 1244, so as to clamp carriers 14 with different heights, and the application range is wide.

In this embodiment, the material supporting mechanism includes two material supporting assemblies 1221 symmetrically disposed at two sides of the conveying device 11, the material supporting assemblies 1221 include a material supporting base 1222, a material supporting cylinder 1223 installed at the material supporting base 1222, a moving plate 1224 installed at a piston rod of the material supporting cylinder 1223, and a material supporting member 1225 installed at the moving plate 1224, and the material supporting member 1225 is slidably connected to the material supporting base 1222. In actual operation, the material supporting cylinders 1223 of the two material supporting assemblies 1221 drive the moving plate 1224 to move close to the carriers 14 in the positioning rack, and the moving plate 1224 drives the material supporting members 1225 to move close to the carriers 14 in the positioning rack until one end of the material supporting member 1225 is inserted to the top surface of the carrier 14 at the bottom layer, that is, the material supporting members 1225 of the two material supporting assemblies 1221 simultaneously support the carriers 14 above the bottom layer, so that the carrier 14 at the bottom layer is separated from the other carriers 14.

Preferably, the positioning frame comprises four corner frames 123 distributed in a rectangular shape, a positioning space communicated with the emptying space 111 is formed between the four corner frames 123, the corner frames 123 are in a right-angle shape, and the four corner frames 123 position four corners of the carrier 14 respectively so as to ensure the position accuracy of the carrier 14.

Preferably, two angle brackets 123 positioned on the same side of the conveying device 11 are respectively installed at two ends of the material holding seat 1222; the material holding seat 1222 is provided with a plurality of adjusting holes 1226 for adjusting the position of the angle bracket 123. The positions of the angle brackets 123 are adjusted through the adjusting holes 1226, so that the distance between two angle brackets 123 on the same side of the conveying device 11 is adjusted, and the length of the positioning space is adjusted, so that the positioning frame can position carriers 14 with different lengths.

In this embodiment, the transfer device 5 includes a rotating shaft 54, a transfer arm 51, a transfer driver 55 for driving the rotating shaft 54 to rotate, and a transfer lifter 56 for driving the rotating shaft 54 to lift, the middle part of the transfer arm 51 is mounted on the rotating shaft 54, two ends of the transfer arm 51 are respectively provided with a first material suction piece 52 and a second material suction piece 53 for tightly sucking materials, and a positioning plane of the primary positioning device 2 and a positioning plane of the final positioning device 3 are respectively provided with a first accommodating cavity 21 and a second accommodating cavity 31 for accommodating two ends of the transfer arm 51; preferably, the transfer lifter 56 is an air cylinder, the transfer driver 55 is a motor, an output shaft of the transfer driver 55 is connected with the rotating shaft 54, and the transfer lifter 56 is in driving connection with the transfer driver 55.

In the initial state, two ends of the transfer arm 51 are respectively accommodated in the first accommodating chamber 21 and the second accommodating chamber 31, and the material suction end surface of the first material suction member 52 and the material suction end surface of the second material suction member 53 are respectively flush with the positioning plane of the primary positioning device 2 and the positioning plane of the final positioning device 3. In actual operation, the loading and unloading device 6 conveys the dedusted material to the primary positioning device 2, the primary positioning device 2 performs primary positioning on the material, after the material is positioned for the first time, the first material absorbing part 52 on the transfer arm 51 tightly absorbs the material positioned for the first time, the transfer lifter 56 drives the transfer arm 51 to move upwards, so that two ends of the transfer arm 51 move out of the first accommodating cavity 21 and the second accommodating cavity 31 respectively, then the transfer driver 55 drives the transfer arm 51 to rotate 180 degrees, so that two ends of the transfer arm 51 change positions, the first material absorbing part 52 together with the material positioned for the first time is transferred to the upper part of the second accommodating cavity 31, the second material absorbing part 53 is transferred to the upper part of the first accommodating cavity 21, the transfer lifter 56 drives the transfer arm 51 to move downwards, so that two ends of the transfer arm 51 with the changed positions are respectively transferred into the first accommodating cavity 21 and the second accommodating cavity 31, so that the material absorbing end surface of the second material absorbing part 53 is flush with the positioning plane of the primary positioning device 2, the material after the first positioning is located on the positioning plane of the final positioning device 3, the final positioning device 3 performs the second positioning on the material after the first positioning, the material after the second positioning is tightly absorbed by the first material absorbing part 52, at this time, the loading and unloading device 6 picks up another material after dust removal to the positioning plane of the primary positioning device 2, the primary positioning device 2 performs the first positioning on the material after dust removal, after the material after dust removal is positioned by the primary positioning device 2, the second material absorbing part 53 tightly absorbs the material, meanwhile, the screen printing device 4 performs screen printing on the material after the second positioning, after the screen printing processing is completed, the transfer lifter 56 drives the transfer arm 51 to move upwards, so that two ends of the transfer arm 51 move out of the first accommodating cavity 21 and the second accommodating cavity 31 respectively, then the transfer driver 55 drives the transfer arm 51 to rotate 180 degrees, so that two ends of the transfer arm 51 can exchange positions again, the second material absorbing piece 53 together with the first positioned material is transferred to the upper part of the second accommodating cavity 31, the first material absorbing piece 52 together with the printed material is transferred to the upper part of the first accommodating cavity 21, the transfer lifter 56 drives the transfer arm 51 to move downwards, the transfer arm 51 places the printed material on the positioning plane of the primary positioning device 2, the first positioned material is placed on the positioning plane of the final positioning device 3, the feeding and discharging device 6 picks up the printed material on the positioning plane of the primary positioning device 2 and conveys the printed material to the carrier 14 carried by the conveying device 11, the feeding and discharging device 6 picks up the material to be printed on the carrier 14 carried by the conveying device 11 to the dust removing plane of the dust removing device 9, the feeding and discharging device 6 picks up the dust-removed material to the positioning plane of the primary positioning device 2, the operation is repeated, thereby realizing the silk-screen printing processing of the material without interruption, the efficiency of screen printing is improved, has guaranteed the position precision of material, has improved the quality of screen printing. In addition, both ends of the transfer arm 51 are respectively accommodated in the first accommodating chamber 21 and the second accommodating chamber 31, so that the screen printing apparatus 4 can perform screen printing on the entire printing surface of the material.

In this embodiment, the primary positioning device 2 includes a primary positioning seat 22, a primary transverse positioning assembly 23 slidably disposed on the primary positioning seat 22, a primary transverse movement driving mechanism 24 for driving the primary transverse positioning assembly 23 to position the transverse position of the material, a primary longitudinal positioning assembly 25 slidably disposed on the primary positioning seat 22, and a primary longitudinal movement driving mechanism 26 for driving the primary longitudinal positioning assembly 25 to position the longitudinal position of the material; specifically, the primary traverse driving mechanism 24 and the primary traverse driving mechanism 26 may both be driven by a motor-driven belt.

After the material after dust removal is conveyed to the positioning plane of the primary positioning seat 22 by the feeding and discharging device 6, the primary transverse moving driving mechanism 24 drives the primary transverse positioning assembly 23 to position the transverse position of the material on the positioning plane of the primary positioning seat 22, and the primary longitudinal moving driving mechanism 26 drives the primary longitudinal positioning assembly 25 to position the longitudinal position of the material on the positioning plane of the primary positioning seat 22, so that the first positioning of the material is realized, and the position accuracy of the material is ensured.

Preferably, the primary transverse positioning assembly 23 includes a first primary transverse slider 231, a second primary transverse slider 232, a first transverse positioning rod 233 mounted on the first primary transverse slider 231, and a second transverse positioning rod 234 mounted on the second primary transverse slider 232, the first primary transverse slider 231 and the second primary transverse slider 232 are both in driving connection with the primary transverse movement driving mechanism 24, the primary transverse movement driving mechanism 24 is used for driving the first primary transverse slider 231 and the second primary transverse slider 232 to approach or depart from each other, and the first transverse positioning rod 233 and the second transverse positioning rod 234 are respectively used for abutting against two sides of the material in the transverse direction; the primary longitudinal positioning assembly 25 comprises a first primary longitudinal sliding block 251, a second primary longitudinal sliding block 252, a first longitudinal positioning rod 253 arranged on the first primary longitudinal sliding block 251, and a second longitudinal positioning rod 254 arranged on the second primary longitudinal sliding block 252, the first primary longitudinal sliding block 251 and the second primary longitudinal sliding block 252 are both in driving connection with the primary longitudinal movement driving mechanism 26, the primary longitudinal movement driving mechanism 26 is used for driving the first primary longitudinal sliding block 251 and the second primary longitudinal sliding block 252 to approach or separate from each other, and the first longitudinal positioning rod 253 and the second longitudinal positioning rod 254 are respectively used for abutting against two sides of a material in the longitudinal direction; the primary positioning seat 22 is provided with a transverse sliding groove 221 and a longitudinal sliding groove 222, the first transverse positioning rod 233 and the second transverse positioning rod 234 are both slidably disposed in the transverse sliding groove 221, the first longitudinal positioning rod 253 and the second longitudinal positioning rod 254 are both slidably disposed in the longitudinal sliding groove 222, and the first transverse positioning rod 233 and the first longitudinal positioning rod 253 are disposed in a direction perpendicular to the sliding direction.

In this embodiment, the primary positioning device 2, the dust removing device 9 and the conveying device 11 are all provided with a lifting device 7 for tightly sucking materials and driving the materials to lift, and the lifting device 7 comprises a material sucking lifting piece 27 arranged in a sliding manner and a material sucking lifting driving mechanism 28 for driving the material sucking lifting piece 27 to lift; specifically, the suction lifting driving mechanism 28 may drive the suction lifting member 27 to move up and down by adopting a structure in which a motor drives a screw rod.

In actual operation, the lifting device 7 at the conveying device 11 is used for tightly sucking the material of the carrier 14 on the conveying device 11 and supporting the material to be printed, so that the loading and unloading device 6 picks up the material to be printed, or when the loading and unloading device 6 conveys the printed material to the position right above the carrier 14 on the conveying device 11, the material sucking lifting driving mechanism 28 drives the material sucking lifting piece 27 to rise through the carrier 14, so that the material sucking lifting piece 27 tightly sucks the printed material on the loading and unloading device 6, then the loading and unloading device 6 moves away from the printed material, and the material sucking lifting driving mechanism 28 drives the material sucking lifting piece 27 to descend together with the printed material, so that the printed material is placed at an empty position of the carrier 14. The lifting material device 7 at the position of the dust removing device 9 is used for tightly sucking materials on the feeding and discharging device 6 and placing the materials on a dust removing plane of the dust removing device 9, or is used for supporting the materials after dust removal, so that the feeding and discharging device 6 can pick up the materials after dust removal. The lifting device 7 at the initial positioning device 2 is used for tightly sucking the materials after dust removal on the feeding device and placing the materials after dust removal on the positioning plane of the initial positioning device 2, or is used for supporting the materials after printing on the initial positioning device 2 so as to facilitate the feeding and discharging device 6 to pick up the materials after printing.

In this embodiment, the final positioning device 3 includes a final positioning seat 32 disposed below the screen printing device 4, a final transverse positioning assembly 33 slidably disposed on the final positioning seat 32, a final transverse movement driving mechanism 34 for driving the final transverse positioning assembly 33 to position the transverse position of the material after the first positioning, a final longitudinal positioning assembly 35 slidably disposed on the final positioning seat 32, and a final longitudinal movement driving mechanism 36 for driving the final longitudinal positioning assembly 35 to position the longitudinal position of the material after the first positioning; specifically, the final traverse driving mechanism 34 and the final traverse driving mechanism 36 may both be driven by a motor-driven belt.

When the transferring device 5 drives the transferring arm 51 to convey the material after the first positioning to the positioning plane of the final positioning seat 32, the final transverse moving driving mechanism 34 drives the final transverse positioning assembly 33 to perform the second positioning on the transverse position of the material on the positioning plane of the final positioning seat 32, and the final longitudinal moving driving mechanism 36 drives the final longitudinal positioning assembly 35 to perform the positioning on the longitudinal position of the material on the positioning plane of the final positioning seat 32, so that the second positioning on the material is realized, and the position accuracy of the material is ensured.

Preferably, the structure of the final transverse positioning assembly 33 is the same as that of the primary transverse positioning assembly 23, and the structure of the final longitudinal positioning assembly 35 is the same as that of the primary longitudinal positioning assembly 25, which are not described herein again.

In this embodiment, the locating plane of final positioning seat 32 is provided with a plurality of material holes 321 that inhale, and a plurality of material holes 321 that inhale are the rectangular array and distribute, after the material after final transverse orientation subassembly 33 and final longitudinal orientation subassembly 35 all fix a position the second time to the material after first location, a plurality of material holes 321 that inhale tightly are on the locating plane of final positioning seat 32 with the material after the second time location to carry out accurate location to the material, guarantee the position accuracy and the stability of material.

In this embodiment, the quantity of just transverse orientation subassembly 23 and the quantity of just longitudinal orientation subassembly 25 are two, just transverse orientation subassembly 23 and just longitudinal orientation subassembly 25 one-to-one cooperation are in order to carry out the first location to the material, the quantity of the first material 52 of inhaling and the quantity of the second material 53 of inhaling are two sets of, and the first material 52 of inhaling of every group is used for inhaling tight material, and the second material 53 of inhaling of every group is used for inhaling tight material for just positioner 2 can once only fix a position two materials after removing dust, and transfer device 5 can once only shift four materials (two materials and two material exchange positions each other), and then has improved the efficiency of secondary location and printing.

Preferably, each group of the first suction members 52 is two first suction members 52, and each group of the second suction members 53 is two second suction members 53, so that the stability of the material transfer is improved.

In this embodiment, the quantity of final transverse positioning subassembly 33 and the quantity of final longitudinal positioning subassembly 35 are two, final transverse positioning subassembly 33 and the cooperation of final longitudinal positioning subassembly 35 one-to-one are in order to carry out the second time location to the material after first time location for final positioner 3 can once only carry out the second time location to two materials, and screen printing device 4 can once only carry out screen printing to the material after two second time locations, has improved the efficiency of location and printing.

Preferably, the loading and unloading device 6 includes a first loading and unloading manipulator 60 for conveying the material on the carrier 14 conveyed by the conveyor 11 to the dust collector 9 or conveying the printed material carried by the primary positioning device 2 to the carrier 14 conveyed by the conveyor 11, and a second loading and unloading manipulator 66 for conveying the dust-removed material to the primary positioning device 2, and the structure of the first loading and unloading manipulator 60 is the same as that of the second loading and unloading manipulator 66. Through the double-manipulator structure of the first feeding and discharging manipulator 60 and the second feeding and discharging manipulator 66, the transfer efficiency, the feeding efficiency and the discharging efficiency of materials are further improved.

Preferably, the number of the material suction lifting pieces 27 is plural, the plural material suction lifting pieces 27 are arranged at intervals, the second loading and unloading manipulator 66 comprises a longitudinal movement driver 61, an upper and lower driver 62 in driving connection with the longitudinal movement driver 61, and an upper and lower material piece 63 installed at the output end of the upper and lower driver 62, the upper and lower material piece 63 is provided with plural supporting plates 64 at intervals, each supporting plate 64 is provided with plural upper and lower material suction nozzles 65 in longitudinal arrangement, the material suction ends of the upper and lower material suction nozzles 65 are arranged upwards, and the plural material suction lifting pieces 27 and the plural upper and lower material pieces 63 are arranged in a staggered manner.

When the plurality of upper and lower material suction nozzles 65 suck one or two dedusted materials, the vertical movement driver 61 drives the upper and lower material 63 with the plurality of support plates 64 to move close to the primary positioning device 2, the plurality of support plates 64 drive the dedusted materials sucked by the plurality of upper and lower material suction nozzles 65 to move to the upper part of the primary positioning device 2, each material suction lifting member 27 is positioned between the two adjacent support plates 64, the vertical movement driver 62 drives the dedusted materials sucked by the plurality of upper and lower material suction nozzles 65 to move downwards, meanwhile, the material suction lifting driving mechanism 28 drives the plurality of material suction lifting members 27 to move upwards until the plurality of material suction lifting members 27 suck the materials sucked by the plurality of upper and lower material suction nozzles 65, the vertical movement driver 61 drives the plurality of upper and lower material suction nozzles 65 to move away from the materials, the material suction lifting driving mechanism 28 drives the plurality of material suction lifting members 27 with the sucked materials to move to the positioning plane of the primary positioning seat 22, finally, the longitudinal movement driver 61 and the up-down driver 62 are matched together to drive the up-down material piece 63 to reset. Preferably, the longitudinal movement driver 61 may be driven by a motor driving a screw, and the up-down driver 62 may be an air cylinder.

Preferably, the structure of the receiving device 8 is the same as that of the feeding device 12, and the description thereof is omitted.

Preferably, the screen printing device 4 and the dust removing device 9 can be both devices in the prior art, and are not described in detail herein.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims (10)

1. A screen printing machine characterized in that: the material conveying device comprises a feeding and discharging device, a transferring device, a conveying device used for conveying carriers to move, a feeding device used for supplying carriers bearing materials to the conveying device, a dust removing device used for removing dust from the materials, a primary positioning device used for positioning the dust-removed materials for the first time, a final positioning device used for positioning the materials after the primary positioning for the second time, a screen printing device used for screen printing the materials after the secondary positioning and a receiving device used for receiving the carriers bearing the printed materials output by the conveying device, wherein the transferring device is used for transferring the materials after the primary positioning to the final positioning device and transferring the printed materials to the primary positioning device, the feeding and discharging device is used for conveying the materials on the carriers conveyed by the conveying device to the dust removing device, and is used for conveying the printed materials borne by the primary positioning device to the carriers conveyed by the conveying device or is used for conveying the printed materials born by the primary positioning device to the carriers conveyed by the conveying device or receiving the dust-removed materials The material is conveyed to the initial positioning device.

2. The screen printing machine according to claim 1, wherein: the discharging end of the conveying device is provided with a limiting device used for abutting against a carrier conveyed by the conveying device, the limiting device comprises a limiting cylinder and a limiting part arranged on a piston rod of the limiting cylinder, and the limiting cylinder is used for driving the limiting part to extend out of the conveying device.

3. The screen printing machine according to claim 1, wherein: conveyor is provided with the blowing space, feedway sets up the drop feed mechanism in the blowing space including going up and down, sets up in the support material mechanism of conveyor's feed end and sets up in the locating rack of conveyor's feed end, drop feed mechanism is located the locating rack, drop feed mechanism is used for bearing range upon range of carrier and places the carrier of bottom on conveyor, the locating rack is fixed a position range upon range of carrier, it is used for holding up the carrier more than the bottom to hold in the palm the material mechanism.

4. A screen printing machine according to claim 3, wherein: the discharging mechanism comprises a discharging seat positioned below the conveying device, a discharging plate arranged on the discharging seat in a sliding manner, and a lifting driver arranged on the discharging seat and used for driving the discharging plate to lift; the material placing plate is provided with a material clamping device, and the material clamping device is used for clamping the carrier at the bottommost layer.

5. The screen printing machine according to claim 4, wherein: the material clamping device comprises two material clamping components symmetrically arranged at two ends of the material discharging plate, and each material clamping component comprises a material clamping cylinder arranged at the bottom of the material discharging plate and a material clamping plate arranged on a piston rod of the material clamping cylinder; the material supporting mechanism comprises two material supporting components symmetrically arranged on two sides of the conveying device, each material supporting component comprises a material supporting seat, a material supporting cylinder arranged on the material supporting seat, a movable plate arranged on a piston rod of the material supporting cylinder and a material supporting part arranged on the movable plate, and the material supporting part is connected with the material supporting seat in a sliding mode.

6. The screen printing machine according to claim 1, wherein: the transfer device comprises a rotating shaft, a transfer arm, a transfer driver and a transfer lifter, wherein the transfer driver is used for driving the rotating shaft to rotate, the transfer lifter is used for driving the rotating shaft to lift, the middle of the transfer arm is arranged on the rotating shaft, a first material suction piece and a second material suction piece are arranged at two ends of the transfer arm respectively and used for sucking materials tightly, and a first accommodating cavity and a second accommodating cavity are arranged on a positioning plane of the primary positioning device and a positioning plane of the final positioning device respectively and used for accommodating two ends of the transfer arm.

7. The screen printing machine according to claim 1, wherein: the initial positioning device comprises an initial positioning seat, an initial transverse positioning assembly, an initial transverse moving driving mechanism, an initial longitudinal positioning assembly and an initial longitudinal moving driving mechanism, wherein the initial transverse positioning assembly is arranged on the initial positioning seat in a sliding mode, the initial transverse moving driving mechanism is used for driving the initial transverse positioning assembly to position the transverse position of the material, the initial longitudinal positioning assembly is arranged on the initial positioning seat in a sliding mode, and the initial longitudinal moving driving mechanism is used for driving the initial longitudinal positioning assembly to position the longitudinal position of the.

8. The screen printing machine according to claim 7, wherein: the initial positioning device, the dust removal device and the conveying device are all provided with lifting material devices used for tightly sucking materials and driving the materials to ascend and descend, and each lifting material device comprises a material sucking lifting piece arranged in a sliding mode and a material sucking lifting driving mechanism used for driving the material sucking lifting piece to ascend and descend.

9. The screen printing machine according to claim 7, wherein: the final positioning device comprises a final positioning seat arranged below the screen printing device, a final transverse positioning assembly arranged on the final positioning seat in a sliding manner, a final transverse moving driving mechanism used for driving the final transverse positioning assembly to position the transverse position of the material subjected to the first positioning, a final longitudinal positioning assembly arranged on the final positioning seat in a sliding manner and a final longitudinal moving driving mechanism used for driving the final longitudinal positioning assembly to position the longitudinal position of the material subjected to the first positioning; and a plurality of material suction holes are formed in the positioning plane of the final positioning seat.

10. The screen printing machine according to claim 9, wherein: the number of the primary transverse positioning assemblies and the number of the primary longitudinal positioning assemblies are two, and the primary transverse positioning assemblies and the primary longitudinal positioning assemblies are matched in a one-to-one correspondence mode to position the material for the first time; the number of the final transverse positioning assemblies and the number of the final longitudinal positioning assemblies are two, and the final transverse positioning assemblies and the final longitudinal positioning assemblies are matched in a one-to-one correspondence mode to perform secondary positioning on the materials after primary positioning.

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