Curved surface printing equipment

Abstract

The present invention relates to the technical field of printing equipment, and in particular to a curved surface printing equipment, comprising a frame, a controller, a clamping device for moving a to-be-printed piece to a set printing position is arranged on the frame, a storage cavity for placing the to-be-printed piece is arranged in the frame, a support rod extending to the storage cavity is arranged on the frame, a guide ring is arranged at one end of the support rod away from the frame, a guide rod is arranged in the guide ring, a support rod is connected in the guide rod, a suction nozzle for adsorbing onto the to-be-printed piece is arranged at one end of the support rod, the suction nozzle is connected to an exhaust device through an air pipe, a push plate for pushing the support rod to move is slidably connected at a position near the bottom of the storage cavity on the frame, and an extension rod is slidably connected to the support rod, so as to solve the problem that the prior art uses a clamp to clamp the two ends of a vase-shaped and hollowed-out irregular cylinder, and the end of the printed object is damaged or falls due to the addition of external force during printing. The present invention has good application in curved surface printing manufacturers.

Description

Technical Field

[0001] The invention belongs to the technical field of printing equipment, and in particular relates to a curved surface printing equipment. Background Art

[0002] Curved surface printing generally uses screen printing or pad printing. During the printing process, the object to be printed needs to be fixed. However, it is more troublesome to fix irregular hollow cylinders like vases. It is necessary to ensure that the printed object is not damaged or deformed due to excessive pressure during fixation, and whether the fixing position will affect printing must also be considered.

[0003] During printing, a clamp is generally used to transfer the printed item to the set position and keep it still to prevent the printing position from deviating. After printing is completed, the clamp transfers the printed item to the placement area. However, during the printing process, whether it is screen printing or pad printing, a force will be applied to the printed item. Once the clamp's holding force is insufficient, the printed item will move down, damaging both ends of the printed item or even causing the risk of it falling. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a curved surface printing device to solve the problem that the prior art uses a clamp to clamp the two ends of a vase-shaped and hollow irregular cylinder, and the ends of the printed object are damaged or fall due to the addition of external force during printing.

[0005] The technical solution is that the curved surface printing equipment includes a frame, a controller, a clamping device for moving the workpiece to be printed to a set printing position is arranged on the frame, a storage cavity for placing the workpiece to be printed is arranged in the frame, a support rod extending to the storage cavity is arranged on the frame, the support rod is provided with a plurality of support rods and the length of the support rods is adjustable, a guide ring is arranged at one end of the support rod away from the frame, a guide rod rotatably connected to the guide ring is arranged in the guide ring, a support rod is slidably connected in the guide rod, a suction nozzle for adsorbing onto the workpiece to be printed is arranged at one end of the support rod, the suction nozzle is connected to the exhaust device through an air pipe, and a position on the frame near the bottom of the storage cavity is provided. A push plate is slidably connected to the support rod for pushing the support rod to move, forming a structure in which the suction nozzle is close to the workpiece to be printed and is adsorbed on the surface of the workpiece to be printed by the air pressure generated by the vacuum device. A support cavity is arranged in the support rod, and an extension rod is slidably connected in the support cavity. A cavity connected to the support cavity is arranged in the extension rod, and an airbag column extending into the cavity is arranged at the bottom of the support cavity. A circular hole for an air pipe to pass through is arranged at one end of the cavity away from the support rod, and the airbag column is connected to the air pump through the air pipe. A storage box for placing the airbag column is arranged at the bottom of the support cavity, forming a structure in which the airbag column extends after being inflated and pushes the extension rod away from the support rod.

[0006] Preferably, the support rod includes an articulated seat fixed on the frame, a base rod is hingedly connected to the articulated seat, an end of the base rod away from the support rod is hingedly connected to a rocker rod, a guide ring is provided at the end of the rocker rod, and fixing grooves are provided at both the base rod and the end of the rocker rod, a fixing protrusion is provided on the articulated seat for use with the fixing groove on the base rod, and a fixing protrusion is provided on the end of the base rod close to the rocker rod for use with the fixing groove on the rocker rod.

[0007] Preferably, the guide ring rotates the connecting seat through a thrust bearing, the connecting seat is a hollow structure, a short slot is provided at one end of the connecting seat away from the guide ring, the short slot cross section is a semicircular structure, there are two short slots and they are symmetrically arranged about the center line of the guide ring, the guide rod is provided with a rotating column used in conjunction with the short slot, and the short slot is provided with an arc ring, forming a structure in which the support rod drives the guide rod to rotate in the horizontal and vertical directions after the suction nozzle is adsorbed on the object to be printed. The contact position between the suction nozzle and the object to be printed is an arc structure, and the suction nozzle will drive the support rod to rotate after being adsorbed on the object to be printed.

[0008] Preferably, a spring is provided at the bottom of the support cavity, and there are multiple springs that are centrally symmetrically arranged about the center position of the bottom of the support cavity. A top ring is provided at one end of the spring away from the bottom of the support cavity, and an annular groove is provided on the top ring for use with the end of the extension rod.

[0009] Preferably, the storage box includes a box body and a box cover, the two opposite inner walls of the box body are connected with a rotating shaft through a coil spring, a winding disk for winding and storing the airbag belt is provided in the middle of the rotating shaft, an opening for the airbag belt to pass through is provided on the box cover, and a roller for guiding is provided on the inner wall of the box cover near the opening.

[0010] Preferably, the end of the extension rod away from the support rod is hingedly connected to a fixed foot, and a counterweight block is arranged in the fixed foot to form a structure in which the fixed foot always remains vertically downward under the action of gravity. The push plate is provided with an electromagnet used in conjunction with the fixed foot, forming a structure in which the electromagnet is energized and the fixed foot is fixed under the action of the electromagnet.

[0011] Preferably, an elastic protrusion is provided at one end of the support rod close to the extension rod, and a long groove extending from the circular hole position to the elastic protrusion position is provided in the extension rod. A through hole for connecting the long groove and the circular hole is provided on the support rod, and a guide rod with one end extending into the circular hole is slidably connected in the long groove, and the end of the guide rod away from the circular hole is wedge-shaped, so that after the guide rod moves, the elastic protrusion releases the restriction on the extension rod, and the extension rod moves under the action of gravity.

[0012] Preferably, two oppositely arranged inner walls of the long groove are provided with sliding strips, the guide rod is provided with a slideway used in conjunction with the sliding strips, a convex ring is provided on the outer wall of the guide rod near the circular hole, and a compression spring fixed to the convex ring is provided on the support rod from the through hole position, forming a structure in which the guide rod is pushed to squeeze the elastic protrusion after the trachea is inflated, and the compression spring drives the guide rod to reset when the trachea is not inflated.

[0013] The beneficial effect of the present invention is that a support rod for fixing and supporting the object to be printed is arranged in the storage cavity, the support rod is fixed to the object to be printed through a suction nozzle, and the support direction of the support rod is adjusted by a guide ring, the extension rod connected to the support rod slide moves under the action of gravity, the counterweight block in the fixed foot cooperates with the electromagnet on the push plate to determine the length of the extension rod, and when the extension rod moves, the airbag column is driven to extend from the storage box, and the length of the support rod and the extension rod is fixed by the inflation of the air pump, which is convenient for fixing the vase-shaped and hollow irregular cylinder;

[0014] There are multiple support rods connected to the guide ring, and the length of the support rods is adjustable. The fixed grooves and fixed protrusions at the hinged positions of the base rod and the swing rod are arranged to facilitate fixing the rotation angles of the base rod and the swing rod. A connecting seat is connected to the guide ring through a thrust bearing to facilitate driving the guide rod to rotate along the horizontal plane. The setting of the rotating column on the guide rod cooperates with the short groove and the arc ring on the connecting seat to facilitate the guide rod to swing in the vertical direction according to the fixed angle between the suction nozzle and the object to be printed.

[0015] The arrangement of a storage box for storing the airbag column in the support cavity facilitates the airbag column to extend out of the storage box when the extension rod moves away from the support rod. The arrangement of the roller on the box cover facilitates the guiding effect when the airbag column is moved out. The coordinated use of the torsion spring and the rotating shaft facilitates the storage of the airbag column when it is not inflated.

[0016] The setting of the elastic protrusion on the support rod facilitates the fixation of the extension rod. The setting of the guide rod in the long groove on the extension rod enables the movement of the guide rod under the action of the air pipe, and pushes the elastic protrusion to retract, thereby releasing the restriction on the extension rod and realizing the movement of the extension rod under the action of gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural diagram of a curved surface printing device of the present invention;

[0018] Figure 2 It is an enlarged view of the structure diagram of the curved surface printing device of the present invention at position A;

[0019] Figure 3 is a cross-sectional view of a guide ring of a curved surface printing device of the present invention;

[0020] Figure 4 is a cross-sectional view of a curved surface printing device of the present invention;

[0021] Figure 5 It is a structural diagram of the support rod of the curved surface printing equipment of the present invention;

[0022] Figure 6 It is an enlarged view of the support rod structure diagram B of the curved surface printing equipment of the present invention;

[0023] Figure 7 It is an enlarged view of position C in the structural diagram of the support rod of the curved surface printing equipment of the present invention.

[0024] Among them, 1 frame, 2 storage cavity, 3 support rod, 4 guide ring, 5 guide rod, 6 support rod, 7 suction nozzle, 8 suction device, 9 push plate, 10 support cavity, 11 extension rod, 12 cavity, 13 air bag column, 14 round hole, 15 air pump, 17 hinge seat, 18 base rod, 19 rocker rod, 20 connecting seat, 21 short groove, 22 rotating column, 23 arc circle, 24 spring, 25 top circle, 26 box body, 27 box cover, 28 rotating shaft, 29 winding disk, 30 opening, 31 rotating roller, 32 fixed foot, 33 counterweight block, 34 electromagnet, 35 elastic protrusion, 36 long groove, 37 through hole, 38 guide rod, 39 slide bar, 40 convex ring, 41 compression spring, 42 fixed groove and 43 fixed protrusion. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0026] Embodiment 1: According to the accompanying drawings of the specification Figure 1-6As shown, the curved surface printing device includes a frame 1 and a controller. The frame 1 is provided with a clamping device for moving the workpiece to be printed to the set printing position. After the clamping device transfers the workpiece to be printed to the storage chamber 2, the support rod 6 fixes the workpiece to be printed and cancels the clamping. After printing is completed, the clamping device takes the printed workpiece away. The frame 1 is provided with a storage chamber 2 for placing the workpiece to be printed. The frame 1 is provided with a support rod 3 extending to the storage chamber 2. The support rod 3 is provided in multiple lengths. The support rod 3 includes an articulated seat 17 fixed to the frame 1 by bolts. The articulated seat 17 is hingedly connected to a base rod 18. The end of the base rod 18 away from the support rod 3 is hingedly connected to a swing rod 19. A guide ring 4 is welded to the end of the swing rod 19. The ends of the base rod 18 and the swing rod 19 are both provided with a fixing groove 42 that is recessed into itself, and the hinge seat 17 is provided with a fixing protrusion 43 that is integrally structured with it and used in conjunction with the fixing groove 42 on the base rod 18. The end of the base rod 18 close to the swing rod 19 is provided with a fixing protrusion 43 that is integrally structured with it and used in conjunction with the fixing groove 42 on the swing rod 19. After the fixing protrusion 43 enters the fixing groove 42, the rotation angle is fixed. A guide rod 5 that is rotatably connected to it is provided in the guide ring 4, and a support rod 6 is slidably connected in the guide rod 5. The inner wall of the guide rod 5 is provided with a guide groove that is recessed into itself, and a sliding bar that is integrally structured with it and used in conjunction with the guide groove is provided on the support rod 6. A suction nozzle 7 that is used to be adsorbed onto the material to be printed is hinged at one end of the support rod 6, and the suction nozzle 7 is connected to the air suction device 8 through an air pipe. The air suction device 8 that is electrically connected to the controller is bolted to the frame 1. A push plate 9 for pushing the support rod 6 to move is slidably connected to the position near the bottom of the storage cavity 2 on the frame 1, and an electric push rod is screwed to the frame 1, and the electric push rod is electrically connected to the controller, forming a structure in which the suction nozzle 7 is close to the printed piece and adsorbed on the surface of the printed piece by the air pressure generated by the suction device 8. A support cavity 10 is provided in the support cavity 10, and an extension rod 11 is slidably connected in the support cavity 10. A cavity 12 connected to the support cavity 10 is provided in the extension rod 11, and an airbag column 13 extending to the cavity 12 is provided at the bottom of the support cavity 10. A circular hole 14 for the air pipe to pass through is provided at one end of the cavity 12 away from the support rod 6. The airbag column 13 is connected to the air pump 15 through the air pipe, and the air pump 15 is fixed to the push plate 9 by bolts, and the air pump 15 is electrically connected to the controller. A storage box for placing the airbag column 13 is screwed to the bottom of the support cavity 10, forming a structure in which the airbag column 13 extends after being inflated and pushes the extension rod 11 away from the support rod 6. The storage box includes a box body 26 and a box cover 27. The two opposite inner walls of the box body 26 are rotatably connected to a rotating shaft 28 through a coil spring. A winding disk 29 for winding and storing the airbag belt is keyed to the middle position of the rotating shaft 28. The storage disk belongs to the prior art. An opening 30 for the airbag belt to pass through is provided on the box cover 27. A roller 31 for guiding is rotatably connected to the inner wall of the box cover 27 near the opening 30 through a support. There are two rollers 31 and they are symmetrically arranged about the opening 30.

[0027] In one embodiment, according to the accompanying drawings of the specification Figure 4 As shown, the connecting seat 20 is rotated in the guide ring 4 through the thrust bearing. The connecting seat 20 is a hollow structure, and the cross section of the connecting seat 20 is a "convex" shape. A short groove 21 is provided at the end of the connecting seat 20 away from the guide ring 4. The cross section of the short groove 21 is a semicircular structure. There are two short grooves 21 and they are symmetrically arranged about the center line of the guide ring 4. A rotating column 22 used in conjunction with the short groove 21 is screwed to the guide rod 5, and an arc ring 23 is fixed to the short groove 21 by bolts, forming a structure in which the support rod 6 drives the guide rod 5 to rotate in the horizontal and vertical directions after the suction nozzle 7 is adsorbed on the printed material.

[0028] In one embodiment, according to the accompanying drawings of the specification Figure 5 and 6 As shown, a spring 24 is fixed to the bottom of the support cavity 10 by screws, and there are multiple springs 24, which are arranged symmetrically about the center position of the bottom of the support cavity 10. The end of the spring 24 away from the bottom of the support cavity 10 is clamped with a top ring 25, and the top ring 25 is provided with a ring groove used in conjunction with the end of the extension rod 11. The push plate 9 pushes the support rod 6 and the extension rod 11 to move upward to ensure that when the suction nozzle 7 is fixed to the object to be printed, the push plate 9 is prevented from moving excessively to damage the object to be printed.

[0029] In one embodiment, according to the accompanying drawings of the specification Figure 1 , 5 As shown in Figure 7, the end of the extension rod 11 away from the support rod 6 is hingedly connected to a fixed foot 32, and a counterweight block 33 is glued inside the fixed foot 32, forming a structure in which the fixed foot 32 always remains vertically downward under the action of gravity. The push plate 9 is provided with an electromagnet 34 used in conjunction with the fixed foot 32, forming a structure in which the electromagnet 34 is energized and the fixed foot 32 is fixed under the action of the electromagnet 34. An elastic protrusion 35 is provided at one end of the support rod 6 close to the extension rod 11, and a long groove 36 extending from the position of the circular hole 14 to the position of the elastic protrusion 35 is provided in the extension rod 11. A through hole 37 for connecting the long groove 36 and the circular hole 14 is provided on the support rod 6. A guide rod 38 with one end extending into the circular hole 14 is slidably connected in the long groove 36. The end of the guide rod 38 away from the circular hole 14 is in a wedge-shaped structure, forming a structure in which the elastic protrusion 35 releases the restriction on the extension rod 11 after the guide rod 38 moves, and the extension rod 11 moves under the action of gravity. Slide bars 39 are provided on the two opposite inner walls of the long groove 36, and a slideway used in conjunction with the slide bar 39 is provided on the guide rod 38. A convex ring 40 sleeved on the outer wall of the guide rod 38 is glued to the position of the guide rod 38 near the circular hole 14, and a compression spring 41 fixed to the convex ring 40 is provided on the support rod 6 from the position of the through hole 37, forming a structure in which the guide rod 38 is pushed to squeeze the elastic protrusion 35 after the air pipe is inflated, and the compression spring 41 drives the guide rod 38 to return to its original position when the air pipe is not inflated.

[0030] The present invention provides a support rod 6 for fixing and supporting the article to be printed in the storage cavity. The support rod 6 is fixed to the article to be printed by a suction nozzle 7, and the supporting direction of the support rod 6 is adjusted by the guide ring 4. The extension rod 11 connected to the slideway of the support rod 6 moves under the action of gravity. The counterweight block 33 in the fixed foot 32 cooperates with the electromagnet on the push plate 9 to determine the length of the extension rod 11. When the extension rod 11 moves, it drives the airbag column 13 to extend from the storage box. The air pump 15 is inflated to achieve the fixation of the length of the support rod 6 and the extension rod 11, which is convenient for fixing the vase-shaped and hollow irregular cylinder; there are multiple support rods 3 connected to the guide ring 4, and the length of the support rod 3 is adjustable. The setting of the fixed groove and the fixed protrusion at the hinge position of the base rod 18 and the swing rod 19 is convenient for fixing the rotation angle of the base rod 18 and the swing rod 19. The guide ring 4 is connected with a connecting seat 20 through a thrust bearing, which is convenient for driving the guide rod 5 along Rotation in the horizontal plane, the setting of the rotating column 22 on the guide rod 5, the short groove 21 and the arc circle 23 on the connecting seat 20, are convenient for realizing the swing of the guide rod 5 in the vertical direction according to the fixed angle between the suction nozzle 7 and the object to be printed; the setting of the storage box for storing the airbag column 13 in the support cavity 10 is convenient for driving the airbag column 13 to extend out of the storage box when the extension rod 11 moves away from the support rod 6, and the setting of the roller 31 on the box cover 27 is convenient for guiding the airbag column 13 when it is moved out, and the coordinated use of the torsion spring and the rotating shaft 28 is convenient for the storage of the airbag column 13 when it is not inflated; the setting of the elastic protrusion 35 on the support rod 6 is convenient for fixing the extension rod 11, the setting of the guide rod 38 in the long groove 36 on the extension rod 11, and the movement of the guide rod 38 is realized under the action of the air pipe, and the elastic protrusion 35 is pushed to retract, the limitation on the extension rod 11 is released, and the extension rod 11 is moved under the action of gravity.

[0031] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A curved surface printing device, comprising a frame (1), a controller, the frame (1) being provided with a clamping device for moving a workpiece to be printed to a set printing position, characterized in that: A storage cavity (2) for placing a piece to be printed is provided in the frame (1), and a support rod (3) extending to the storage cavity (2) is provided on the frame (1), and the support rod (3) is provided in a plurality and the length of the support rod (3) is adjustable. A guide ring (4) is provided at one end of the support rod (3) away from the frame (1), and a guide rod (5) rotatably connected to the guide ring (4) is provided in the guide ring (4), and a support rod (6) is slidably connected in the guide rod (5), and a suction nozzle (7) for adsorbing the piece to be printed is provided at one end of the support rod (6), and the suction nozzle (7) is connected to an exhaust device (8) through an air pipe. A push rod (7) is slidably connected to the bottom of the storage cavity (2) on the frame (1). A push plate (9) is moved by the movable support rod (6), so as to form a structure in which the suction nozzle (7) is close to the workpiece to be printed and is adsorbed on the surface of the workpiece to be printed by the air pressure generated by the air suction device (8), the support rod (6) is provided with a support cavity (10), an extension rod (11) is slidably connected to the support cavity (10), a cavity (12) connected to the support cavity (10) is provided in the extension rod (11), an air bag column (13) extending to the cavity (12) is provided at the bottom of the support cavity (10), a circular hole (14) for the air pipe to pass through is provided at one end of the cavity (12) away from the support rod (6), and the air bag column (13) is connected to the air pump (15) through the air pipe. The support cavity (10) is provided with a storage box for accommodating the airbag column (13) at the bottom thereof, so that the airbag column (13) is extended after being inflated and pushes the extension rod (11) away from the support rod (6), the support rod (3) comprises a hinge seat (17) fixed on the frame (1), a base rod (18) is hingedly connected to the hinge seat (17), an end of the base rod (18) away from the support rod (3) is hingedly connected to a swing rod (19), an end of the swing rod (19) is provided with a guide ring (4), the ends of the base rod (18) and the swing rod (19) are both provided with a fixing groove (42), and the hinge seat (17) is provided with a fixing groove ( The base rod (18) is provided with a fixing protrusion (43) for use with the fixing groove (42) on the swing rod (19) at one end of the base rod (18) close to the swing rod (19); the extension rod (11) is hingedly connected to a fixing foot (32) at one end away from the support rod (6); a counterweight (33) is provided in the fixing foot (32), so that the fixing foot (32) is always kept vertically downward under the action of gravity; an electromagnet (34) for use with the fixing foot (32) is provided in the push plate (9), so that the electromagnet (34) is energized and the fixing foot (32) is fixed under the action of the electromagnet (34).

2. The curved surface printing device according to claim 1, characterized in that: The connecting seat (20) is rotated in the guide ring (4) via a thrust bearing. The connecting seat (20) is of a hollow structure. A short groove (21) is provided at one end of the connecting seat (20) away from the guide ring (4). The cross section of the short groove (21) is of a semicircular structure. There are two short grooves (21) which are symmetrically arranged about the center line of the guide ring (4). A rotating column (22) for use with the short groove (21) is provided on the guide rod (5). An arc ring (23) is provided on the short groove (21), so that after the suction nozzle (7) is adsorbed on the material to be printed, the support rod (6) drives the guide rod (5) to rotate in the horizontal and vertical directions.

3. The curved surface printing device according to claim 1, characterized in that: A spring (24) is arranged at the bottom of the support cavity (10), and there are a plurality of springs (24) which are arranged centrally and symmetrically about the center position of the bottom of the support cavity (10). A top ring (25) is arranged at one end of the spring (24) away from the bottom of the support cavity (10), and an annular groove is arranged on the top ring (25) for use with the end of the extension rod (11).

4. The curved surface printing device according to claim 1, characterized in that: The storage box comprises a box body (26) and a box cover (27); two opposite inner walls of the box body (26) are connected to a rotating shaft (28) via a coil spring; a winding disk (29) for winding and storing an airbag belt is provided in the middle of the rotating shaft (28); an opening (30) for passing the airbag belt is provided on the box cover (27); and a rotating roller (31) for guiding is provided at a position near the opening (30) on the inner wall of the box cover (27).

5. The curved surface printing device according to claim 1, characterized in that: An elastic protrusion (35) is provided at one end of the support rod (6) close to the extension rod (11); a long groove (36) extending from the circular hole (14) to the elastic protrusion (35) is provided in the extension rod (11); a through hole (37) for connecting the long groove (36) and the circular hole (14) is provided on the support rod (6); a guide rod (38) having one end extending into the circular hole (14) is slidably connected in the long groove (36); an end of the guide rod (38) away from the circular hole (14) is in a wedge-shaped structure, so that after the guide rod (38) moves, the elastic protrusion (35) releases the restriction on the extension rod (11), and the extension rod (11) moves under the action of gravity.

6. The curved surface printing device according to claim 5, characterized in that: Slide bars (39) are arranged on two inner walls of the long groove (36) which are arranged opposite to each other; a slideway used in conjunction with the slide bar (39) is arranged on the guide rod (38); a convex ring (40) sleeved on the outer wall of the guide rod (38) is arranged at a position of the guide rod (38) close to the circular hole (14); a compression spring (41) fixed to the convex ring (40) is arranged at a position of the through hole (37) on the support rod (6), so as to form a structure in which the guide rod (38) is pushed to squeeze the elastic protrusion (35) after the air pipe is inflated, and the compression spring (41) drives the guide rod (38) to return to its original position when the air pipe is not inflated.

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