Cylindrical cylinder workpiece printing machine

Abstract

A rotary table, a top rotating mechanism and a printing wheel are arranged on a workbench, the rotary table can rotate relative to the workbench, a plurality of inner supporting mechanisms are arranged on the rotary table, the distances between the inner supporting mechanisms and the central axis of the rotary table are equal, and each inner supporting mechanism comprises an inner supporting rod rotationally installed on the rotary table. The right end of the inner supporting rod penetrates through the rotating disc and extends to the other side of the rotating disc, the jacking and rotating mechanism and the rotating disc are arranged on the two sides of the right end of the inner supporting rod correspondingly, and the jacking and rotating mechanism comprises an ejector pin, an ejector pin base, an ejector pin driving part and a rotating driving part; the ejector pin is rotatably installed on the ejector pin base, the rotary driving piece is used for driving the ejector pin to rotate, the printing wheel is rotatably arranged on the workbench, and the moving directions of a rotating shaft of the printing wheel, the inner supporting rod and the ejector pin base are all parallel to the central axis of the rotating disc. The printing work is automatically completed, the automation degree is high, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a cylindrical barrel workpiece printing machine. Background Art

[0002] Pencils with erasers usually have a cylindrical metal cap on one end, and an eraser is placed in the metal cap. In order to make the pencil look better and enhance its aesthetics to attract more consumers, colors are usually printed on the outer cylindrical surface of the metal cap, and some even print some spaced stripes. It is difficult for existing printing equipment to complete such printing work on pencil metal caps, so now pencil metal caps are usually printed manually by workers, which has low production efficiency and high labor costs, increasing the production costs of enterprises. Summary of the invention

[0003] In order to solve the above problems, the utility model proposes a cylindrical tube workpiece printing machine, which automatically completes the printing work of the outer cylindrical surface of the cylindrical tube workpiece through machinery to improve productivity.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a new cylindrical workpiece printing machine, including a workbench, characterized in that a turntable, a jacking mechanism and a slide seat are provided on the workbench, the turntable can rotate relative to the workbench, and a plurality of inner support mechanisms are provided on the turntable at equal distances from the central axis of the turntable, the inner support mechanism includes an inner support rod rotatably mounted on the turntable, the right end of the inner support rod passes through the turntable and extends to the other side of the turntable, the jacking mechanism and the turntable are respectively on both sides of the right end of the inner support rod, the jacking mechanism includes an ejector, an ejector seat, an ejector driving member and a rotating driving member, the ejector seat can move left and right relative to the workbench, the ejector driving member is used to drive the ejector seat to move, the ejector is rotatably mounted on the ejector seat, the rotating driving member is used to drive the ejector to rotate, and rotating the turntable can rotate the inner support rod to a position directly opposite to the ejector. The ejector pin can be inserted into the right end of the inner support rod opposite to it by movement and expand the right end of the inner support rod, so that the cylindrical tube workpiece sleeved on the right end of the inner support rod cannot rotate relative to the inner support rod. The slide is movably arranged on the workbench, and the moving direction of the slide is perpendicular to the central axis of the turntable. The slide driving member is arranged on the workbench, which is used to drive the slide to move. The printing transfer wheel and the printing wheel are rotatably arranged on the slide, and the rotating axes of the printing transfer wheel and the printing wheel are parallel, and the wheel surfaces of the two are in contact. The slide is provided with a printing wheel driving member for driving the printing wheel to rotate, and the moving directions of the rotating axis of the printing wheel, the inner support rod and the ejector pin seat are all parallel to the central axis of the turntable. By moving the slide, the wheel surface of the printing wheel can be made to contact with the outer cylindrical surface of the cylindrical tube workpiece sleeved on the inner support rod opposite to the ejector pin.

[0005] The utility model provides a cylindrical tube workpiece printing machine, which sleeves the cylindrical tube workpiece on the right end of the inner support rod, rotates the turntable, rotates the cylindrical tube workpiece to a position facing the ejector pin, and the ejector pin moves and inserts into the right end of the inner support rod, and drives the inner support rod and the workpiece to rotate together, so that the paint on the surface of the printing wheel is printed on the workpiece, and the printing work is automatically completed with a high degree of automation, which greatly improves the production efficiency and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural schematic diagram of a cylindrical workpiece printing machine;

[0007] Figure 2 It is a partial structural schematic diagram of a cylindrical workpiece printing machine;

[0008] Figure 3 for Figure 2 A schematic diagram of the structure from another perspective;

[0009] Figure 4 is a cutaway schematic diagram of the inner support mechanism;

[0010] Figure 5 It is a partial structural schematic diagram of a cylindrical workpiece printing machine;

[0011] Figure 6 for Figure 5 A schematic diagram of the structure from another perspective.

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0013] See also Figures 1 to 3 The cylindrical workpiece printing machine comprises a workbench 1, on which a turntable 2, a turntable driving member 21 and a turntable shaft 22 are arranged. The turntable 2 is placed upright, and the turntable shaft 22 passes through the center of the turntable 2 and is installed together with the turntable 2. The turntable shaft 22 is rotatably installed on the workbench 1 through a bearing. The shaft 22 is equipped with a pulley, and the turntable driving member 21 drives the turntable 2 to rotate through a belt drive. The turntable driving member 21 is preferably a motor.

[0014] The turntable 2 is provided with a plurality of internal support mechanisms, each of which is equidistant from the central axis of the turntable 2, that is, the plurality of internal support mechanisms are arranged on a circumference of the turntable 2 and are arranged at equal intervals on the same circumference. Figure 4The inner support mechanism includes an inner support rod 31, a push sleeve 32, a spring 33 and an outer sleeve 34 which are coaxially arranged from the inside to the outside. The right end of the outer sleeve 34 is fixed on the turntable 2, and its left end has an end ring extending inward, and a through hole 35 is provided on the end ring. The inner support rod 31 is rotatably mounted on the end ring of the outer sleeve 34 through a bearing, parallel to the central axis of the turntable 3, and its right end penetrates the turntable 2 and extends to the other side of the turntable. The left end of the push sleeve 32 is inside the outer sleeve 34, and has a boss 36 extending outward, and the radial boss 36 extends to the outside of the through hole of the outer sleeve 34. The right end of the push sleeve 32 penetrates the turntable 2 and extends to the other side of the turntable. The push sleeve 32 can move back and forth relative to the turntable 2 and the inner support rod 31 along its axial direction. The spring 33 is between the push sleeve 32 and the outer sleeve 34, and its two ends are respectively pressed on the boss 36 of the turntable 2 and the push sleeve 32. The cylindrical tube workpiece is sleeved on the right end of the inner support rod 31, and the workpiece can be brought to different stations by rotating the turntable 2.

[0015] See also Figure 2 and Figure 3 , the feeding mechanism is arranged on the workbench 1, and the feeding mechanism and the turntable 2 are respectively on both sides of the right end of the inner support rod 31, that is, the right end of the inner support rod 31 is between the feeding mechanism and the turntable 2. The feeding mechanism includes a feeding magazine 4, a feeding push rod 41 and a feeding drive 42. The feeding magazine 4 has a feeding trough 40 and a feeding hole. The opening of the feeding trough 40 is upward and connected to the vibration plate. The workpiece enters the feeding trough 40 in a lying position through vibration. The feeding hole extends straightly from the bottom of the feeding trough 40 and passes through the feeding magazine 4. The feeding drive 42 is connected to the feeding push rod 41, and is used to drive the feeding push rod 41 to insert into the feeding hole and move along the feeding hole to push the workpiece at the bottom of the feeding trough 40 from the feeding hole to the outside of the feeding magazine 4. The feeding drive 42 is preferably a cylinder. The turntable 2 rotates, so that the inner support rod 31 of one of the inner support mechanisms rotates to a position facing the feeding hole of the feeding magazine 4, and the feeding push rod 41 pushes the cylindrical tube workpiece at the bottom of the feeding trough 40 toward the inner support rod 31, and the cylindrical tube workpiece is sleeved on the right end of the inner support rod 31 from the outside. After the loading is completed, the turntable 2 is rotated to rotate the workpiece to the next printing station.

[0016] The jacking mechanism is arranged on the workbench 1, and the jacking mechanism and the turntable 2 are respectively on both sides of the right end of the inner support rod 31, that is, the right end of the inner support rod 31 is between the jacking mechanism and the turntable 2. The jacking mechanism includes an thimble 5, an thimble seat 50, an thimble driving member 51 and a rotating driving member 52. The thimble seat 50 is movably arranged on the workbench 1, and can move left and right relative to the workbench 1, and the moving direction is parallel to the central axis direction of the turntable 2. The thimble driving member 51 is arranged on the workbench 1, connected to the thimble seat 50, and is used to drive the thimble seat 50 to move. The thimble driving member 51 is preferably a cylinder. The thimble 5 is rotatably mounted on the thimble seat 50 and can rotate relative to the thimble seat 50. The thimble 5 is connected to the pulley 54 and rotates together with the pulley 54. The rotating driving member 52 is rotatably mounted on the workbench 1, connected to the pulley 53, and is used to drive the pulley 53 to rotate. The rotating driving member 52 is preferably a motor. The belt (not shown) cooperates with the pulley 54 and the pulley 53, and the rotary drive member 52 drives the ejector 5 to rotate through the belt transmission. The turntable 2 rotates, and the inner support rod 31 with the cylindrical tube workpiece is rotated to a position directly opposite to the ejector 5. The ejector drive member 51 pushes the ejector 5 and the ejector seat 50 toward the inner support rod 31, and the ejector 5 is inserted into the right end of the inner support rod 31, and the right end of the inner support rod is expanded, so that the cylindrical tube workpiece on the end of the inner support rod cannot rotate relative to the inner support rod 31. Then the rotary drive member 52 is started to rotate the ejector 5, and the ejector 5 drives the inner support rod 31 and the cylindrical tube workpiece on the inner support rod 31 to rotate together.

[0017] See also Figure 1 The printing wheel 6 is rotatably arranged on the workbench 1, and on one side of the turntable 2 and the ejector pin 5, its rotation axis is parallel to the central axis of the turntable 3. The cylindrical surface of the cylindrical workpiece sleeved on the inner support rod 31 facing the ejector pin contacts the wheel surface of the printing wheel 6, and the cylindrical surface of the cylindrical workpiece rotating with the inner support rod 31 is printed with the pigment on the wheel surface of the printing wheel 6. The wheel surface of the printing wheel 6 has an inwardly concave groove, and the groove cannot print a pattern on the workpiece, and the printing wheel 6 can print stripes on the workpiece.

[0018] The workbench 1 is also provided with a discharging mechanism, which includes a discharging push rod 7 and a discharging driving member 70. The discharging push rod 7 is parallel to the central axis of the turntable 2 and connected to the discharging driving member 70. The discharging driving member 70 is used to drive the discharging push rod to move along the longitudinal direction of the discharging push rod, and is preferably a cylinder. A plurality of long pins 71 are provided on the chain 72 of the chain transmission mechanism. The long pins 71 and the discharging push rod 7 of the discharging mechanism are respectively on both sides of the turntable 2, and the chain 72 passes through the oven 73. After printing is completed, the turntable 2 rotates the inner support rod 31 with the printed workpiece to the discharging position. At this position, the outer sleeve 34 is in a position opposite to the discharging push rod 7. The discharging push rod 7 can be inserted into the through hole 35 of the outer sleeve 34 opposite to it by moving, and the outer sleeve 34 is pushed toward its right end. The outer sleeve 34 pushes the cylindrical tube workpiece sleeved on the right end of the inner support rod 31 away from the inner support rod 31. At this time, the chain 72 has driven a long pin 71 to move to a position opposite to the discharge push rod 7, and the workpiece is pushed away from the inner support rod 31 and is sleeved on the long pin 71. The chain 72 continues to move and brings the workpiece sleeved on the long pin 71 into the oven 73 for drying.

[0019] See also Figure 5 and Figure 6 The workbench 1 is also provided with a slide driver 62 and a movable slide 61. The slide 61 can move relative to the workbench 1, and its moving direction is perpendicular to the central axis of the turntable 2. The slide driver is used to drive the slide 61 to move. The printing transfer wheel 63 and the printing wheel 6 are rotatably arranged on the slide 61 and can rotate relative to the slide 61. The rotation axes of the printing transfer wheel 63 and the printing wheel 6 are parallel, and the wheel surfaces of the two are in contact. The slide 61 is provided with a printing wheel driver 60 for driving the printing wheel 6 to rotate. When the printing wheel driver 60 is started, the printing wheel 6 and the printing transfer wheel 63 rotate together, and the pigment on the wheel surface of the printing transfer wheel 63 is transferred to the printing wheel 6.

[0020] The workbench 1 is also provided with a first rubber-coated roller 81, a mobile rubber-coated roller 84, a second rubber-coated roller 82, a reciprocating screw 88, a swing rubber-coated roller 85 and a third rubber-coated roller 83, all of which have rotating shafts parallel to the rotating shaft of the printing wheel 6. The roller driving member 8 is arranged on the workbench 1, and is used to drive the first rubber-coated roller 81 to rotate. The first rubber-coated roller 81 is connected to the second rubber-coated roller 82 through a belt transmission, driving the second rubber-coated roller 82 to rotate. The second rubber-coated roller 82 is connected to the reciprocating screw 88 through a belt transmission, driving the reciprocating screw 88 to rotate. The swing rubber-coated roller 85 is rotatably arranged on the connecting block 87, and a nut that cooperates with the reciprocating screw 88 is arranged on the connecting block 87. The reciprocating screw 88 rotates, driving the nut that cooperates with it to move back and forth on the reciprocating screw 88, and the swing rubber-coated roller 85 moves with the connecting block 87 and can rotate relative to the connecting block 87. The third rubber-coated roller 83 is rotatably arranged on the workbench, and the swinging rubber-coated roller 85 is between the second rubber-coated roller 82 and the third rubber-coated roller 83, and is in contact with the second rubber-coated roller 82 and the third rubber-coated roller 83. The second rubber-coated roller 82 drives the swinging rubber-coated roller 85 to rotate, and the swinging rubber-coated roller 85 drives the third rubber-coated roller 83 to rotate, and the pigment on the second rubber-coated roller 82 is transferred to the third rubber-coated roller 83 through the swinging rubber-coated roller 85. The movable rubber-coated roller 84 is rotatably arranged on the roller moving seat 89, and the roller moving seat 89 is movably arranged on the workbench 1. The roller moving driving member 86 is preferably a cylinder, which is connected to the roller moving seat 89 and is used to drive the roller moving seat 89 to move. The mobile rubber-coated roller 84 is between the first rubber-coated roller 81 and the second rubber-coated roller 82, and can move back and forth between the position of contacting the first rubber-coated roller 81 and the position of contacting the second rubber-coated roller 82, and transfer the printing pigment on the first rubber-coated roller 81 to the second rubber-coated roller 82. A pigment tank (not shown in the figure) for holding printing pigment is provided below the first rubber-coated roller 81, and the first rubber-coated roller 81 carries the pigment on its body by rotating. The transfer path of the pigment is the pigment tank, the first rubber-coated roller 81, the mobile rubber-coated roller 84, the second rubber-coated roller 82, the swing rubber-coated roller 85 and the third rubber-coated roller 83. The slide 61 moves toward the third rubber-coated roller 83, so that the printing transfer wheel 63 contacts the third rubber-coated roller 83, and the pigment on the third rubber-coated roller 83 is transferred to the printing wheel 6 through the printing transfer wheel 63. The slide 61 moves away from the third rubber-coated roller 83, so that the printing wheel 6 contacts the workpiece, and the pigment on the printing wheel 6 is printed on the workpiece. The printing wheel automatically switches between the two positions of receiving pigment and printing by moving the slide, first receiving pigment, then printing, then receiving pigment, then printing, and can automatically and infinitely print, with a good degree of automation and high production efficiency. The printing pigment is automatically and gradually transferred to the printing wheel 6 through the above structure, so that the pigment on the printing wheel is more uniform, the printing quality is better, and the production efficiency is higher.

[0021] The utility model provides a cylindrical tube workpiece printing machine. The feeding mechanism sleeves the cylindrical tube workpiece on the right end of the inner support rod, rotates the turntable, rotates the cylindrical tube workpiece to a position facing the ejector pin, the ejector pin moves and inserts into the right end of the inner support rod, and drives the inner support rod and the workpiece to rotate together, and the pigment on the surface of the printing wheel is printed on the workpiece. After printing is completed, the turntable rotates to rotate the printed workpiece to a position facing the discharge push rod, the discharge push rod is inserted into the through hole of the outer sleeve, and the push sleeve is pushed outward, and the push sleeve pushes the printed workpiece on the inner support rod away from the inner support rod. After the workpiece leaves the inner support rod, it is sleeved on the long pin of the chain, and the chain brings the workpiece into the oven for drying. The utility model integrates feeding, printing and drying processes in one, and all are completed automatically. The degree of automation is high, which greatly improves production efficiency and reduces production costs. The utility model is designed for pencil metal cap printing and is suitable for printing all cylindrical tube workpieces.

Claims

1. A cylindrical workpiece printing machine, comprising a workbench, characterized in that: A turntable, a jacking mechanism and a sliding seat are provided on the workbench. The turntable can rotate relative to the workbench. A plurality of inner supporting mechanisms are provided on the turntable at equal distances from the central axis of the turntable. The inner supporting mechanism includes an inner supporting rod rotatably mounted on the turntable. The right end of the inner supporting rod passes through the turntable and extends to the other side of the turntable. The jacking mechanism and the turntable are respectively on both sides of the right end of the inner supporting rod. The jacking mechanism includes an ejector pin, an ejector pin seat, an ejector pin driving member and a rotating driving member. The ejector pin seat can move left and right relative to the workbench. The ejector pin driving member is used to drive the ejector pin seat to move. The ejector pin is rotatably mounted on the ejector pin seat. The rotating driving member is used to drive the ejector pin to rotate. Rotating the turntable can rotate the inner supporting rod to a position opposite to the ejector pin. The ejector pin can be inserted into the inner supporting pin opposite to the inner supporting pin by moving. The right end of the rod also expands the right end of the inner support rod so that the cylindrical tube workpiece sleeved on the right end of the inner support rod cannot rotate relative to the inner support rod. The slide is movably arranged on the workbench, and the moving direction of the slide is perpendicular to the central axis of the turntable. The slide driving member is arranged on the workbench, which is used to drive the slide to move. The printing transfer wheel and the printing wheel are rotatably arranged on the slide. The rotating axes of the printing transfer wheel and the printing wheel are parallel, and the wheel surfaces of the two are in contact. The slide is provided with a printing wheel driving member for driving the printing wheel to rotate. The moving directions of the rotating axis of the printing wheel, the inner support rod and the ejector pin seat are all parallel to the central axis of the turntable. By moving the slide, the wheel surface of the printing wheel can be made to contact with the outer cylindrical surface of the cylindrical tube workpiece sleeved on the inner support rod facing the ejector pin.

2. The cylindrical workpiece printing machine according to claim 1, characterized in that: The workbench is also provided with a first rubber-coated roller, a movable rubber-coated roller, a second rubber-coated roller, a reciprocating screw, a swinging rubber-coated roller and a third rubber-coated roller, all of which have rotating shafts parallel to the rotating shaft of the printing wheel. The roller driving member is used to drive the first rubber-coated roller to rotate, the first rubber-coated roller is connected to the second rubber-coated roller through a belt transmission, the second rubber-coated roller is connected to the reciprocating screw through a belt transmission, the swinging rubber-coated roller is rotatably arranged on a connecting block, a nut matching the reciprocating screw is provided on the connecting block, the swinging rubber-coated roller is in contact with the second rubber-coated roller and the third rubber-coated roller, the movable rubber-coated roller is rotatably arranged on a roller moving seat, the roller moving seat is movably arranged on the workbench, the roller moving driving member is used to drive the roller moving seat to move, the movable rubber-coated roller can move back and forth between a position contacting the first rubber-coated roller and a position contacting the second rubber-coated roller, and a pigment groove is provided below the first rubber-coated roller.

3. The cylindrical workpiece printing machine according to claim 1, characterized in that: The inner support mechanism includes an inner support rod, a pushing sleeve, a spring and an outer sleeve which are coaxially arranged in sequence from the inside to the outside. The outer sleeve is fixed on the turntable, and its left end has an end ring extending inwardly, and the end ring is provided with a through hole. The inner support rod is rotatably mounted on the end ring of the outer sleeve through a bearing. The left end of the pushing sleeve is inside the outer sleeve and has a boss extending outwardly, and the boss extends to the outside of the through hole of the outer sleeve. The right end of the pushing sleeve passes through the turntable and extends to the other side of the turntable. The pushing sleeve can move back and forth relative to the turntable along its axial direction, and the two ends of the spring are respectively pressed on the bosses of the turntable and the pushing sleeve.

4. The cylindrical workpiece printing machine according to claim 3, characterized in that: The workbench is also provided with a discharging mechanism, which includes a discharging push rod and a discharging driving member. The discharging push rod is parallel to the central axis of the turntable and is connected to the discharging driving member. The discharging driving member is used to drive the discharging push rod to move longitudinally along the discharging push rod. Rotating the turntable can rotate the outer sleeve to a position opposite to the discharging push rod. The discharging push rod can be inserted into the through hole of the outer sleeve opposite to it by moving.

5. The cylindrical workpiece printing machine according to claim 4, characterized in that: The workbench is also provided with a loading mechanism, which and the turntable are respectively located on both sides of the right end of the inner support rod. The loading mechanism includes a loading magazine, a loading push rod and a loading drive. The loading magazine has a loading trough and a loading hole. The loading hole extends straight from the bottom of the loading trough and passes through the loading magazine. The loading drive is used to drive the loading push rod to insert into the loading hole. Rotating the turntable can rotate the inner support rod to a position opposite to the loading hole.

6. The cylindrical workpiece printing machine according to claim 5, characterized in that: It also includes a chain transmission mechanism and an oven. A plurality of long pins are arranged on the chain of the chain transmission mechanism. The long pins and the discharge push rod of the discharge mechanism are respectively located on both sides of the turntable. The chain can drive the long pins to move to a position opposite to the discharge push rod, and the chain passes through the oven.

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