JPH0612925Y2 - Multifunction printing machine - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a multifunctional printing machine, especially for the outer peripheral surface of a work,
The present invention relates to a printing machine capable of performing screen printing, hot plate thermal transfer printing, roll thermal transfer printing, and roll pad printing.

(Prior Art) As a printing method for printing characters, patterns and the like on a work such as a resin molded product, a screen printing method, a thermal transfer printing method, a pad printing method or the like has been conventionally used. Among these, the screen printing method uses a screen in which a large number of fine holes are formed in a thin film to draw a printing pattern, and the screen is in contact with the printed surface of the work. Then, by using a spatula-shaped article called a squeegee from above to exude the ink to the printed surface side,
The print pattern is printed on the surface. Further, the thermal transfer printing method uses a transfer film obtained by laminating a transfer layer on which a print pattern is drawn on a base film made of a synthetic resin, and the film is brought into contact with the transfer surface of the work and heated and pressed. Thus, the transfer layer is to be transferred to the surface to be printed, and as the thermal transfer printing method, a roll type thermal transfer printing method in which the transfer film is pressed against the surface to be transferred by a heated transfer roll, There is a hot plate type transfer printing method in which a plate is pressed against a transfer surface. Further, in the pad printing method, the transfer pad is brought into contact with the printing plate to transfer the printing pattern drawn on the printing plate to the transfer pad, and the transfer pad is brought into contact with the work to form the pattern. Printing is performed on the work.This pad printing method includes a pressing method in which the transfer pad is alternately pressed against the printing plate and the work, and the printing plate (plate cylinder), the transfer pad (roll pad), and the work are sequentially transferred. There is a roll type that is touched.

(Problems to be solved by the invention) By the way, each of the above-mentioned printing methods has its own characteristic, and there is a demand for finishing state such as precision of printing, color quality, and three-dimensional effect, or Is used properly according to the material of the work, the properties of the surface to be printed, etc., but in the past, each of the printing methods described above was performed by a dedicated printing machine. Therefore, in order to meet a wide variety of demands, it is necessary to provide a plurality of types of printing machines, and there are problems that the facility cost is extremely high and that a large installation space is required.

Therefore, an object of the present invention is to realize a printing machine that can perform various types of printing as described above on a single machine.

(Means for Solving Problems) That is, the multifunction printer according to the present invention is a screen printing method, a hot plate thermal transfer printing method, a roll thermal transfer printing method for a work having an outer peripheral surface as a printing surface. And a roll-type pad printing method, which is capable of performing printing by four methods. The work drive section and the printing unit mounting section are provided in the main body in close proximity to each other. Further, the work driving means is provided with a work rotating means for rotating the work around the axis thereof, and the printing unit mounting portion is provided with the above-mentioned 4 with respect to the outer peripheral surface of the work rotated by the rotating means. A plurality of types of printing units for performing system printing are configured to be replaceable.

The printing unit is a screen transfer unit that transfers the screen in a tangential direction at a speed equal to the peripheral speed of the work outer peripheral surface in a state where the screen is close to or in contact with the work outer peripheral surface, and the work is sandwiched between the screen transfer units. A squeegee drive unit for arranging the squeegee arranged on the opposite side in a position corresponding to a position where the screen and the work are close to or in contact with each other, and a transfer film for transferring the transfer film from the feeding part to the winding part by passing near the outer peripheral surface of the work. A supply unit, a hot platen transfer unit that transfers the hot platen in a tangential direction at a speed equal to the peripheral speed of the outer peripheral surface of the work piece while the hot platen is pressed against the outer peripheral surface of the work piece with the transfer film interposed therebetween.
A transfer roll support unit for transferring the heated transfer roll with the transfer film sandwiched between it and the work outer peripheral surface, a pad printing unit for transferring the pad roll onto which the print pattern is transferred from the plate cylinder to the work outer peripheral surface, and the like are used. These are selectively attached to the printing unit attachment portion of the main body according to the printing method.

(Operation) According to the above configuration, if the screen transfer unit and the squeegee support unit are attached to the printing unit attachment portion of the main body, screen printing is performed on the outer peripheral surface of the work which is rotationally driven by the work rotating means in the work drive unit. If the transfer film supply unit and the hot platen transfer unit are attached, hot platen type thermal transfer printing can be performed. Further, if a transfer film supply unit and a transfer roll support unit are attached, roll type thermal transfer printing can be performed, and if a pad printing unit is attached, pad printing can be performed. As described above, according to the multi-function printing machine of the present invention, it is possible to perform four-system printing on the outer peripheral surface of the work with one machine.

(Example) Hereinafter, the Example of this invention is described. In this embodiment, the outer peripheral surface of the non-cylindrical work can be printed by the above-mentioned four methods.

First, the overall configuration of the multi-function printing machine according to the present embodiment will be described. As shown in FIG. 1, the printing machine 1 has a vertically long main body 2, and an operation unit 3 is provided on the upper portion of the main body 2. Work drive units 4 are provided in the lower part of the main body 2
The intermediate portion of the is a mounting portion 5 for various printing units required according to each printing method, and in the case of the illustrated example, the screen transfer unit 40 and the squeegee driving unit 60 are mounted on the mounting portion 5. There is.

The work drive unit 4 has a work drive unit 10 and a lift control unit 30 arranged on a base plate 6, as shown in an enlarged manner in FIGS. Among these, the work drive unit 10 includes a work rotation motor 12 attached to the lower surface of the upper side 11a of the support base 11 and a side part 1 of the support base 11 when viewed from the front (FIG. 2).
1b attached to the motor 12 via a belt 13
Speed reducer 14 to which the rotation of
A work mounting shaft 17 which is rotatably supported by a bearing 15 mounted on the upper surface of the shaft and is driven to rotate by a belt 16 by the output of the speed reducer 14, and an end face 1 of the shaft 17.
A work can be attached to 7a. And
Engaging members 18, 18 using a linear bearing fixed to the back surface of the side portion 11b of the support base 11 are engaged with a rail 19 projecting upward from the base plate 6 and the support base 11 or The entire work drive unit 10 is vertically movable, and the rod of the work lifting cylinder 20 mounted on the lower surface of the base plate 6 is connected to the lower side portion 11c of the support base 11.
The work drive unit 10 is moved up and down. The drive unit 10 has an encoder 2 for detecting the rotation angle of the workpiece mounting shaft 17 via a belt 21.
2 is provided.

Further, as shown in FIG. 3, the lifting control unit 30 includes a stopper 33 in which an engaging member 32 is engaged with a rail 31 projecting upward from the base plate 6 and supported vertically movably. A rotatable screw shaft 34 standing upright in parallel with the rail 31, and a lifting control motor 3 attached to the lower surface of the base plate 6 for rotating the screw shaft 34.
5 and a female screw sleeve 37 screwed to the screw shaft 34 and coupled to the stopper 33 via a connecting member 36. When the screw shaft 34 is rotated by the motor 35, the stopper 33 is formed together with the sleeve 37. Is the rail 31
It is designed to go up and down along. An upper side portion 33a bent to the side of the stopper 33 is located above the support base 11 of the drive unit 10, and an upward movement of the support base 11 or the cylinder 20 of the drive unit 10 causes an upper side portion of the stopper 33. It is designed to be regulated at a position where it abuts against 33a. An adjusting screw 38 is provided on the upper side portion 33a of the stopper 33.

On the other hand, the screen transfer unit 40 mounted on the printing unit mounting portion 5 of the main body 2 shown in FIG. 1 has a fixed frame 41 and a movable frame 42 as shown in an enlarged manner in FIG. Among them, the fixed frame 41 is composed of a mounting member 43 and a horizontally long guide member 45 connected below the member 43 via connecting members 44, 44, and the mounting member 43 is an operating portion of the main body 2. Three
The fixed frame 41 and the entire screen transfer unit 40 are detachably attached to the main body 2 by being engaged with the attachment plate 7 fixed to the lower surface of the main frame 2 by using the dovetail groove structure a. The fixed frame 41 is provided with a lever 46 for fixing it to the main body 2, and the guide member 45 is fixedly provided with a rail 47 extending over its entire length. Further, the movable frame 42 includes a screen mounting member 48 and engaging members 49 fixed to both ends of the screen mounting member 48 and engaged with the rail 47.
And the guide member 45 of the fixed frame 41.
The screen A is supported by the screen mounting member 48 via jigs 50. A screw shaft 51 is rotatably provided between one end of the guide member 45 and the center of the fixed frame 41.
A motor 53 that rotationally drives the screw shaft 51 via a belt 52 is attached to one end of the guide member 45, and an engaging member 49 at one end of the movable frame 42.
A female screw sleeve 54 fixed to the screw shaft 51 is screwed onto the screw shaft 51, and the rotation of the screw shaft 51 by the motor 53 allows the movable frame 42 or the screen A attached to the frame 42 to be transferred in the horizontal direction. It has become.

Further, the squeegee drive unit 60 mounted on the main body 2 together with the screen transfer unit 40 is detachably mounted on the lower surface of the mounting member 43 of the fixed frame 41 of the screen transfer unit 40 by using the dovetail groove structure b and the lever 61. Has a fixed frame 62 fixed by the screw shaft 63 extending in the horizontal direction to the frame 62.
And a squeegee driving motor 64 that rotationally drives the screw shaft 63. Further, the squeegee drive unit 60 has a movable body 65 that supports the squeegee B and the ink return C, and an engaging member 66 coupled to the movable body 65.
Is engaged with a rail 67 arranged horizontally on the fixed frame 62 and screwed onto the screw shaft 63, so that the movable body 65 or the squeegee is rotated by the rotation of the screw shaft 63 by the motor 64. B and the ink return C are driven in the horizontal direction. The squeegee B and the ink return C are designed to be moved up and down by the cylinders 68 and 69.
And adjusting screws 70 and 71 for adjusting the positional relationship between these and the screen A when the ink return C moves downward.

In addition, the printing unit mounting portion 5 of the main body 2 has a fifth
As shown in the drawing, the transfer film D supply unit 80 is attached and the screen transfer unit 40 is also installed.
The hot platen E is attached using.

In the transfer film supply unit 80, the film feeding portion 82 and the film winding portion 8 are provided at both ends of a horizontally extending support member 81 attached to the attachment portion 5 of the main body 2.
3, the film supply unit 82 includes a support shaft 84 on a roll that supports the roll D ′ of the transfer film D.
Guide rollers 85 and 86 for guiding the film D fed from the roll D ', a sensor 87 for positioning the fed film D, and the support shaft 84 urged in the anti-feeding direction to the powder clutch ( Back tension motor 8 for preventing loosening of film D via (not shown)
And 8 are provided. Also, the film winding section 83
Is a winding shaft 89 for winding the used film D.
A feed roller 91 that is driven by the motor 90 to move the film D in the winding direction, and a pressing roller 92 that holds the film D between the roller 91 and the roller 91 are provided. Here, the winding shaft 89 is biased in the film winding direction, and guide rollers 93 and 94 are provided between the feeding portion 82 and the winding portion 83, whereby the transfer film D is formed. The feeding portion 82 is transported to the winding portion 83 through a predetermined route while maintaining a tension state. Further, on both sides of the heating plate E, the transfer film D is projected downward by the cylinders 95 and 96 during the transfer operation, and the transfer film D is first brought into contact with the outer peripheral surface of the work X, so that the film D is heated by the heat of the heating plate E. Rollers 97 and 98 for preventing so-called foil burning are provided.

The heating plate E is attached to the supporting member 48 of the movable frame 42 of the heating plate transfer unit (screen transfer unit) 40 by using jigs 50 'and 50', and is moved in the horizontal direction in the same manner as the screen A described above. It is supposed to be transferred.

Further, as shown in FIG. 6, in the printing unit mounting portion 5 of the main body 2, together with the film supply unit 80,
The transfer roll support unit 100 is attached. Like the fixed frame 41 of the screen (heating plate) transfer unit 40, this unit 100 is detachably attached to the attachment plate 7 fixed to the lower surface of the main body operation portion 3 using the dovetail groove structure a '. A frame 102 fixed by a lever 101 is provided, and a transfer roller 104 is rotatably supported by a bearing member 103 provided on the frame 102. A heater 105 for heating the roll 104 is disposed around the upper part of the roll 104. In order to prevent the roll 104 from being locally heated, the roll 104 is passed through a one-way clutch during non-transfer. A motor (not shown) for rotating is provided.

In addition, the printing unit mounting portion 5 of the main body 2 has a seventh
A pad printing unit 110 can also be attached as shown. This unit 110 includes the screen (heating plate) transfer unit 40 and the transfer roll support unit 1
00 and the like, a support member 112 is detachably attached to the attachment plate 7 fixed to the lower surface of the main body operation portion 3 using the dovetail groove structure a ″ and fixed by the lever 111. A □ -shaped frame 113 is fixed in an inclined manner, and a pad roller 114 is rotatably supported on one outer side of the frame 113 via a bracket 115, and the frame 113 is A movable plate 117 supported so as to be movable left and right along the guide rods 116, 116 is provided, and a cylinder 118 for moving the plate 117. The ink plate 11 is provided on the front surface of the movable plate 117.
9 and a plate cylinder 120 having a lower part protruding into the ink tray 119.
And a drive mechanism 122 of the doctor blade 121 for scraping off excess ink adhering to the peripheral surface of the plate cylinder 120, and the cam body 123 of the plate cylinder 120 and the blade drive mechanism 122 are rotated. Motor 1
24 are provided. Here, the blade drive mechanism 12
2 is a groove 1 formed on the circumferential surface of the cam body 123 by the rotation of the cam body 123.
The lever 126 is swung via the pin 125 engaged with the pin 23a, and this swinging causes the blade support 128 slidably supported by the support shaft 127 to slide in the direction orthogonal to the plane of the drawing. The doctor blade 1 supported by the support 128 is
21 is moved in the generatrix direction of the plate cylinder 120 while being in contact with the peripheral surface thereof. The blade support 128
Is urged by a spring 129 in a direction in which the doctor blade 121 is brought into contact with the peripheral surface of the plate cylinder, and an auxiliary blade 130 for scraping off the ink adhering to the end surface of the plate cylinder 120.
Is provided.

Next, the configuration of the control system of the printing press 1 will be described with reference to FIG.
40, and output signals a, b,
c, d, and e, a work rotation motor 12 and a lifting control motor 35 in the work drive unit 4, a screen (heating plate) transfer motor 53 in the screen (heating plate) transfer unit 40, and a squeegee in the squeegee driving unit 60. Drive motor 64 and pad printing unit 11
The operation of the plate cylinder rotating motor 124 at 0 is controlled.

The control unit 140 includes a work mounting shaft 1
7 (workpiece rotation motor 12) vertical position of the work X corresponding to each rotation angle from the reference position, the horizontal position of the screen A or the heating plate E, the horizontal position of the squeegee B, and the plate cylinder 12
A memory 141 for storing data indicating a rotation angle of 0 is provided. Then, the signal f from the encoder 22 that detects the rotation angle of the work mounting shaft 17 is input, and the work X is moved up and down so as to reach each position stored in the memory according to the rotation angle indicated by the signal f. The control motor 35, the screen (heating plate) transfer motor 53, the squeegee drive motor 64, and the plate cylinder rotation motor 124 are operated. still,
Data for controlling the rotation speed of the work rotation motor 12 itself according to each rotation angle is also set in the memory 141.

The control unit 140 includes signals g, h, and i from a workpiece elevation teaching potentiometer 142, a screen (heating plate) transfer teaching encoder 143, a squeegee driving teaching potentiometer 144, and a plate cylinder rotation teaching encoder 145. , J are input, and the data indicated by these signals g, h, i, j are set and stored in the memory 141 during the teaching operation described later.

The teaching operation is performed as follows.

First, for lifting / lowering teaching of the work X, the teaching device 150 as shown in FIG. 9 is attached to the printer main body 2, and the work X is attached to the work attaching shaft 17 in the work drive unit 4 of the main body 2. The elevating member 151 of the teaching device 150 is brought into contact with the upper end position of the device by its own weight. Then, with the vertical position of the work X, that is, the vertical position of the work drive unit 10 shown in FIGS. 2 and 3 fixed, the work rotation motor 12 in the unit 10 moves the work X at a predetermined angle from the reference position. Rotate. At this time, if the work X is non-cylindrical, the elevating member 151 moves up and down as shown by the chain line in FIG. 9, and the up and down position is measured by the potentiometer 142 connected to the member 151. Then, the data thus measured is stored in the memory 141 of the control unit 140 in association with each rotation angle of the workpiece X from the reference position. The elevating member 151 of the teaching device 150 is used when the printing member contacting the work X is the flat screen A or the heating plate E, and the printing member contacting the work X is a transfer roll. In the case of the roll 104 or the pad roll 114, an elevating member 151 ′ having a cylindrical surface portion 152 ′ having the same radius as those rolls 104 and 114 shown in FIG.
Is used.

Further, the transfer teaching of the screen A uses a teaching device 160 as shown in FIG.
The slide member 161 at 0 is brought into contact with the upper end position of the work X. The slide member 16 is rotated by rotating the work X from the reference position by a predetermined angle.
1 by the friction of the contact portion with the workpiece X
Then, the motor 35 of the lifting control unit 30 in the work drive unit 4 shown in FIG. 3 is operated according to the data obtained by the lifting teaching at this time to move the position of the stopper 33. By moving up and down, the vertical position of the drive unit 10 or the work X is changed. As a result, the slide member 161 movable only in the horizontal direction and the work X are always kept in line contact with each other, and the slide member 161 moves according to the rotation angle of the work X. Then, the movement amount is measured by the encoder 143 via the friction wheel 163, and the measurement data is associated with each rotation angle from the reference position of the work X to the control unit 140.
The memory 141 of FIG.

Further, the driving teaching of the squeegee B is performed by the screen transfer teaching device 160 as shown in FIG.
Using the same device 170 as above, the work X is rotated while being raised and lowered to move the slide member 171 in the horizontal direction, and the squeegee B is rotated for each rotation angle of the work X.
The movable member 172 attached with is moved to position the tip of the movable member 172 at the contact portion between the work X and the slide member 171.
The position of the movable member 172 at that time is adjusted by the potentiometer 14
4 to measure. Then, the position is stored in the memory 141 of the control unit 140 in association with each rotation angle of the work X.

In addition, as shown in FIG. 13, the plate cylinder rotating teaching includes a first roll 181 that rolls in contact with the work X, a second roll 182 that rolls in contact with the roll 181, and a second roll 182.
The teaching device 180 having an encoder 145 for detecting the rotation angle of the roll 181 is used. The first and second rolls 181 and 182 have the same diameter as the pad roll 114 and the plate cylinder 120 in the pad printing unit 110 shown in FIG. And the tenth
When the work X is rotated while moving up and down according to the data obtained by the work lifting / lowering teaching shown in the figure, the rotation angle of the second roll 182 that rotates in conjunction with this is measured by the encoder 145, and the rotation angle is measured. Control unit 1 in association with each rotation angle from the reference position of
40 memory 141.

According to the above configuration, printing of each method is performed using the printing machine 1 as follows.

First, when performing screen printing, as shown in FIGS. 1 and 4, the screen transfer unit 40 and the squeegee drive unit 60 are attached to the attachment portion 5 of the printing machine main body 2, and the drive unit in the work drive portion 4 is attached. 1
Workpiece X is attached to mounting shaft 17 of 0. Then, after supplying ink onto the screen A held by the movable frame 42 of the screen transfer unit 40, the horizontal position of the movable body 65 in the movable frame 42 and the squeegee drive unit 60, and the vertical position of the work drive unit 10. Further, the rotation angles of the work mounting shafts 17 are set to their respective initial positions, and a predetermined position near one end of the screen A is brought into contact with the print start position X ₁ of the work X as shown in FIG. The squeegee B is positioned immediately above the contact position.

Next, from this state, the work rotation motor 12 rotates the work mounting shaft 17 or the work X in the x direction, and the elevator control motor 35 moves the stopper 33 up and down in accordance with the rotation angle, and the screen is transferred. The screen A is moved in the y direction by the motor 53, and the squeegee B is moved by the squeegee driving motor 64.
In this case, since the motors 35, 53, 64 operate according to the data obtained by the above-mentioned teaching operation, the work X and the screen A are in a predetermined contact state as shown in FIG. 14 (b). Therefore, the squeegee B is always positioned immediately above the contact position between the work X and the screen A while rotating and moving horizontally without causing slippage. Then, by rotating the work X to the state shown in FIG. 14C while maintaining such a positional relationship, the predetermined print start position X _{1 on} the outer peripheral surface of the work X reaches the end position X ₂ . A pattern composed of a large number of fine holes drawn on the screen A is printed in the area.

When performing thermal plate type thermal transfer printing, as shown in FIG. 5, the film supply unit 80 is attached to the printer main body 2 and the movable frame 42 of the screen transfer unit 40 is attached.
Install the heating plate E instead of the screen A. Further, since the squeegee drive unit 60 is unnecessary, it is removed from the main body 2. Then, when the work X is brought into contact with the hot platen E with the transfer film D sandwiched between them, and the work X is rotated while being raised and lowered and the hot platen E is horizontally moved as in the case of the screen printing, the work X is moved. A predetermined pattern is transferred and printed on the outer peripheral surface of the work X from the transfer film D held between the X and the heating plate E.

Furthermore, when performing roll type thermal transfer printing, as shown in FIG.
And the roll supporting unit 100. Then, while rotating the work X in the same manner as in each printing described above,
The work X and the roll 104 are rotated with the transfer film D being held between the work X and the transfer roll 104 by raising and lowering the work X according to the data obtained by the work raising / lowering teaching operation in the figure. As a result, the transfer film D is formed on the outer peripheral surface of the work X.
Then, a predetermined pattern is printed.

When pad printing is performed, as shown in FIG.
The pad printing unit 110 is attached to the main body 2, the plate cylinder 120 in the unit 110 is brought into contact with the pad roll 114 via the movable plate 117 by the cylinder 118, and the work X is brought into contact with the pad roll 114. Then, the work X is rotated while being moved up and down according to the data obtained by the elevating teaching of FIG. 10, and the plate cylinder 120 or the pad roll 114 is rotated according to the data obtained by the plate cylinder rotating teaching of FIG. . As a result, after the print pattern drawn on the plate cylinder 120 is transferred to the transfer pad 114, it is further transferred and printed on the outer peripheral surface of the work X.

(Advantages of the Invention) As described above, according to the multifunction printer of the present invention, four types of printing, that is, screen printing, roll type and platen type thermal transfer printing, and roll type pad printing are performed on the outer peripheral surface of the work. It becomes possible to selectively perform printing, and when printing with these methods on demand, one printing machine is sufficient, which significantly reduces the equipment cost and reduces the installation space of the printing machine. It will be saved.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an overall front view of a printing machine, FIGS. 2 and 3 are enlarged front and side views of a work driving section of the printing machine, and FIG. 4 is screen printing. Main part enlarged front view showing the state at the time, FIG. 5 is a main part enlarged front view showing the state at the time of hot plate type thermal transfer printing, and FIG. 6 is a main part enlarged front view showing the state at the time of roll type thermal transfer printing, FIG. 7 is an enlarged front view of an essential part showing a state at the time of pad printing, FIG. 8 is a block diagram showing a control system of the printing machine, FIGS. 9 and 10.
FIG. 11 is a schematic diagram of a work lifting / lowering teaching device, FIG. 11 is a schematic diagram of a screen (heating plate) transfer teaching device, FIG. 12 is a schematic diagram of a squeegee driving teaching device, and FIG.
FIG. 3 is a schematic diagram of the plate cylinder rotating teaching device, and FIGS. 14 (a) to 14 (c) are schematic diagrams showing the positional relationships among the work, screen, and squeegee during screen printing. DESCRIPTION OF SYMBOLS 1 ... Printer, 2 ... Main body, 4 ... Work drive part, 5 ... Printing unit mounting part, 12 ... Work rotation means (work rotation motor), 40 ... Screen (hot platen) transfer unit, 6
0 ... Squeegee drive unit, 80 ... Transfer film supply unit, 100 ... Transfer roll support unit, 110 ... Pad printing unit.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI technical display location B41F 17/34 C 9112-2C (72) Inventor Kazuya Sato Hamadera Ishizucho Higashi 1-chome, Sakai City, Osaka Prefecture 5-15 No. Odaira Kogyo Co., Ltd. (56) References JP-A-59-207244 (JP, A) SAI-KAI 54-169516 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. A printing method capable of performing printing on a work having an outer peripheral surface as a surface to be printed by four methods including a screen printing method, a hot plate thermal transfer printing method, a roll thermal transfer printing method, and a roll pad printing method. In the printing machine, a work drive section and a printing unit mounting section are provided in the main body in close proximity to each other, and the work drive section is provided with work rotating means for rotationally driving the work about its axis. Further, a plurality of types of printing units for performing the printing of the four methods on the outer peripheral surface of the work rotatably driven by the rotating unit are replaceably mounted on the printing unit mounting portion. Further, as a plurality of types of printing units, the screen is moved in the tangential direction at a speed equal to the peripheral speed of the outer peripheral surface of the work in a state where the screen is close to or in contact with the outer peripheral surface of the work. A screen transfer unit, a squeegee driving unit that positions a squeegee located on the opposite side of the work with the screen sandwiched between the screen and the work, and a transfer film passing near the outer peripheral surface of the work. And a transfer film supply unit for moving from the feeding portion to the winding portion, and a tangent line of the transfer plate at a speed equal to the peripheral speed of the work outer peripheral surface with the transfer plate sandwiched between the transfer plate and the work outer peripheral surface. Direction transfer unit, a transfer roll support unit for transferring a heated transfer roll to the outer peripheral surface of the work while sandwiching the transfer film, and a pad roll having a print pattern transferred from the plate cylinder on the outer peripheral surface of the work. And a pad printing unit for making contact with the printing unit. Multifunctional printing machine, characterized by being configured to be selectively mounted on Tsu preparative mounting portion. 2. A multi-function printing machine according to claim 1, wherein the screen printing unit and the hot platen transfer unit are configured to be shared.