JP2571440B2 - Pallet printing method and apparatus - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet printing method and a pallet printing apparatus for performing screen printing on a side surface of a pallet for a forklift used for carrying and storing various kinds of luggage.

(Prior Art) Forklift pallets are used as a platform on which various kinds of goods are loaded when a forklift carries various kinds of goods.

FIG. 16 (a) shows a four-sided pallet, and FIG. 16 (b) shows a two-sided pallet. Pallet 501 and pallet 501a
Is formed by integrating semi-finished products which are divided and formed vertically by, for example, injection molding.

On the sides of the pallet 501 and the pallet 501a, fork insertion holes 503, 5 for inserting a fork of a forklift are provided.
03a is formed. That is, various kinds of luggage are placed on the pallet 501 and the pallet 501a, the forks of the forklift are inserted into the insertion holes 503, 503a, lifted, and transported to a desired place.

By the way, various characters, figures, and the like are printed on the side surfaces of the pallet 501 and the pallet 501a (reference numerals in the figure).
505). Heretofore, this type of printing has all been performed manually.

(Problems to be Solved by the Invention) All the printing work on the side of the pallet 501 is performed manually by a worker, and the work requires a lot of labor and is not only inefficient, but also makes the printing clear. It was difficult to finish.

The present invention has been made in view of the above points, and an object of the present invention is to enable automatic printing on all sides of a pallet, thereby improving the efficiency of printing work and improving the quality of printing. Another object of the present invention is to provide a pallet printing method and a pallet printing apparatus having versatility that can sufficiently cope with a change in pallet.

(Means for Solving the Problems) In order to achieve the above object, a pallet printing method according to a first aspect of the present invention is a method of printing next by positioning a pallet in an upright position at a reverse position and rotating it by a predetermined angle. The step of turning the target surface upward, the step of heating the print target surface when transporting the pallet with the print target surface facing upward to the printing position, and the step of transporting the heated pallet to the printing position to the printing position A step of performing screen printing on the printing target surface, a step of drying the printing target surface when transporting the screen-printed pallet to the drying position, and a step of transporting the dried pallet to the drying position and reversing the pallet. And turning the next print target surface upward by rotating the print target surface by a predetermined angle. It is characterized in that the steps are repeated.

According to a second aspect of the present invention, there is provided a pallet printing apparatus, comprising: transport means for reciprocating a standing pallet between a pallet reversing position, a printing position, and a drying position; A reversing means for turning the side of the pallet to be printed next upward by rotating by a predetermined angle; and a reversing means arranged on the primary side of the printing position, reversed by the reversing means and printed by the transport means. Heating means for heating the surface to be printed of the pallet conveyed to the pallet, and a pallet provided at the printing position and heating the surface to be printed by the heating means, and performing screen printing on the surface to be printed A printing unit, which is disposed on the secondary side of the printing position, is subjected to screen printing by the printing unit, and is conveyed to the drying position by the conveying unit. A drying device to dry the printed surface of the let and is characterized by comprising a.

(Operation) In the case of the pallet printing method according to the first aspect, first, the pallet in the upright state is positioned at the reversing position and rotated by a predetermined angle so that the next print target surface faces upward. When transferring the pallet with the print target surface facing upward to the print position, the print target surface is heated, the print target surface is transferred to the heated pallet to the print position, and screen printing is performed on the print target surface. Then, when transporting the screen-printed pallet to the drying position, the surface to be printed is dried, the pallet transported to the drying position and returned to the printing position is rotated by a predetermined angle, thereby rotating the pallet. The print target surface is directed upward.

Then, the above-described steps are repeated until predetermined printing is performed on all the print target surfaces.

In the case of the pallet printing apparatus according to the second aspect, first, there is a conveying means, and the pallet is reciprocated as appropriate between the reversing position, the printing position, and the drying position in a standing state by the conveying means.

A reversing means is provided at the reversing position, and the pallet is rotated by a predetermined angle by the reversing means, so that the side to be printed next faces upward.

The pallet having the print target surface facing upward is transported to the printing position by the transport unit. At this time, the printing surface facing upward is heated by the heating means. This is a step before screen printing by the printing unit at the next printing position.

The pallet whose surface to be printed is heated by the heating means,
The sheet is conveyed to the printing position by the conveying means, where the screen printing is performed by the printing means.

The screen-printed pallet is transported to the drying position by the transporting unit, and at this time, the printing target surface on which the screen printing has been performed by the drying unit is dried.

After being dried at the drying position, the pallet is returned to the reversing position by the transport means. Therefore, the print surface is rotated by a predetermined angle so that the next print target surface faces upward.

Hereinafter, the process is repeated until the predetermined printing is performed on all the printing target surfaces.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 15. First, an outline of the configuration of the pallet printing apparatus according to the present embodiment will be described with reference to FIG.

FIG. 1 is a plan view showing the entire configuration of a pallet printing apparatus. A pallet 1 is conveyed in a horizontal direction in FIG. 1 by a conveying means 3 and reciprocates between a reversing position A, a printing position B, and a drying position C. I do.

The feature of the present invention resides in that the pallet is conveyed and printed in an upright state with the sides of the pallet turned up and down.

A reversing means 5 is provided at the reversing position A,
This reversing means 5 holds the pallet 1 and reverses it by a predetermined angle. As a result, the side to be printed next is turned upward.

The pallet 1 rotated by a predetermined angle by the reversing means 5
Is transported to the next printing position B by the transport means 3. At this time, the heating means 7 is arranged on the primary side of the printing position B, and the pallet 1 conveyed to the printing position B
Is heated by the heating means 7.

The superheater 7 can be adjusted in height according to the size of the pallet, and is configured to have versatility.

The pallet 1 heated by the heating means 7 is transported to the printing position B by the transport means 3. A printing unit 9 is provided at the printing position B, and the printing unit 9 performs screen printing on the printing target surface of the pallet 1.

The screen printed pallet 1 is transported
To the drying position C. At that time, the printing position B
The surface to be printed on which the screen printing has been performed is dried by the drying means 11 provided on the secondary side of.

The pallet 1 conveyed to the drying position C is returned by the conveying means 3 from there to the reversal position A. Therefore, the print surface is rotated by a predetermined angle so that the next print target surface faces upward.

Hereinafter, the process is repeatedly performed until predetermined printing is performed on all print target surfaces.

 Next, the configuration of each means will be described in detail.

First, as for the transport means 3, as shown in FIG.
It comprises a first conveyor 13 and a second conveyor 15. The first conveyor 13 includes a plurality of rollers 17,
Sprockets 19 and 21 are disposed at both end positions below these rollers 17. These sprockets 19,
A chain 23 is wound between the two. Another sprocket 25 is coaxially fixed to one sprocket 19, and a chain 31 is fixed between the sprocket 25 and the sprocket 29 fixed to the rotation shaft of the drive motor 27.
Is wound. Therefore, by rotating the drive motor 27, the chain 23 rotates.

A sprocket (not shown) is coaxially fixed to the ends of all the rollers 17 except for a part of the rollers 17 shown at the left end in the drawing. Accordingly, when the chain 23 rotates, each sprocket rotates, and thereby the roller 17 rotates. As a result, the pallet 1 is conveyed in either the left or right direction in the figure.

The second conveyor 15 has the same configuration,
In the drawings, the same reference numerals are given and the description thereof is omitted.

Next, the configuration of the reversing means 5 will be described. The reversing means 5 includes a rotating device 41 installed on one side of the conveying means 3.
And a support device 43 arranged on the other side.

First, the configuration of the rotation device 41 will be described. As shown in FIGS. 3 and 4, an apparatus main body 47 is mounted on a base 45 so as to be able to move forward and backward with respect to the pallet 1. That is, a pair of guide members 49, 49 are fixed to the lower end of the apparatus main body 47, while a pair of rails 51, 51 are laid on the base 45. The guide members 49, 49 are slidably engaged with the rails 51, 51.

A cylinder mechanism 53 is disposed on the base 45, and a rod 55 is connected to the cylinder mechanism 53. The rod 55 is fixed to the bottom of the apparatus main body 47. Accordingly, the operation of the cylinder mechanism 53 causes the rod 55
Moves forward and backward, and accordingly, the device main body 47 moves forward and backward in the direction indicated by the arrow a in the figure.

An elevating member 59 is attached to the device main body 47 so as to be able to elevate and lower. That is, a drive motor is provided at the upper end of the apparatus main body 47.
A pulley 63 is fixed to a rotation shaft of the drive motor 61. On the other hand, another pulley 65 is arranged in the apparatus main body 47, and this pulley 65 and the pulley 63
Between them, a belt 67 is wound.

A ball screw 69 is fixed to the pulley 65, and the ball screw 69 extends vertically downward. A ball nut 71 is screwed into the ball screw 69, and the elevating member 59 described above is fixed to the ball nut 71. Therefore, by rotating the drive motor 61 in an appropriate direction, the elevating member 59 moves up or down in the direction indicated by the arrow b in the figure. Note that guide mechanisms 70, 70 are provided on both sides of the ball screw 69.

A support plate 73 is rotatably attached to the elevating member 59. That is, the shaft 75 is fixed to the support plate 73,
The shaft 75 is supported by a pair of bearings 77 and 79 fixed to the elevating member 59.

Further, as shown in FIG. 4, a drive motor 81 is installed on the elevating member 59, and a pulley 83 is fixed to a rotating shaft of the drive motor 81. On the other hand, another pulley 85 is fixed to the shaft 75, and a belt 87 is wound between the pulleys 83 and 85. Therefore, by rotating the drive motor 81, the support plate 73 can be rotated.

Next, the support plate 73 will be described. At the front of the support plate 73 and at a position of 180 °, the claw members 89, 89 are provided with shafts 91, 9 respectively.
Mounted rotatably via one. Shaft 91, 91
5, penetrates the support plate 73, and pinions 93, 93 are fixed on the back side of the support plate 73.

On the other hand, a pair of cylinder mechanisms 9
5 and 95 are installed, and these cylinder mechanisms 95 and 95
Racks 99, 99 are fixed to the rods 97, 97.
The pinions 93, 93 are screwed to the racks 99, 99, so that the claw members 89, 89 can be rotated by driving the cylinder mechanisms 95, 95.

The claw member 89 has a shape as shown in FIG.
It is inserted into a through hole formed in the pallet 1. Claw members
By inserting the insert 89 into the through-hole and rotating it, the claw member 89 is engaged with the through-hole in close contact with the through-hole.
Is fixed.

Pins 101, 101 are attached to the support plate 73 at 180 ° positions. These pins 101 are also inserted into the through holes of the pallet 1.

The support plate 73 is provided with other holes 103, 103 and the like (another hole (not shown) is also formed). It can be attached to the through hole to be changed and is configured to have versatility.

Next, the configuration of the support device 43 will be described. As shown in FIGS. 7 and 8, a gantry 102 is installed on the base 45, and a bracket 105 is fixed to an upper end of the gantry 102. This bracket 105 has a cylinder mechanism 107
Is fixed, and a support plate 111 is fixed to the rod 109 of the cylinder mechanism 107. Note that guide mechanisms 113, 113 are provided above and below the cylinder mechanism 107.

By driving the cylinder mechanism 107, the support plate 1
11 is moved back and forth with respect to pallet 1.

Next, the configuration of the heating means 7 will be described. In the embodiment, the heating means 7 is constituted by a gas burner, and the gas burner oxidizes the surface of the pallet 1 to be printed.
Improves the "adhesion" of the ink. The heating means 7
Is one end of a ball nut 187 that can be raised and lowered, that is,
It is arranged on the reversing means 5 side. Therefore, the height position can be adjusted according to the size of the pallet, and the pallet has versatility.

Next, the configuration of the printing unit 9 will be described. The printing unit 9 includes a supporting device 121 and a printing device 123. First, the configuration of the supporting device 121 will be described.

The support device 121 has a configuration as shown in FIGS. 9 and 10. First, there is a base 125, on which a support portion 127 is arranged so as to be able to move up and down.

That is, a ball screw 129 extends in the vertical direction on the base 125, and a gear 131 is fixed to a lower end of the ball screw 129. Another gear 133 meshes with this gear 131, and this gear 133 is fixed to a shaft 135 extending in the horizontal direction. The shaft 135 is supported by a pair of bearings 137, 137, and a handle 141 is fixed to the tip.

On the other hand, a ball nut 143 is screwed into the ball screw 129, and the support portion 127 described above is fixed to the ball nut 143. Therefore, by rotating the handle 141 in an appropriate direction, the support portion 127 can be raised or lowered. Note that guide mechanisms 140, 140 are provided on both sides of the ball screw 129.

As described above, by allowing the support portion 127 to be able to move up and down, the pallet has sufficient versatility to cope with a change in the size of the pallet, and also enables safe and reliable support.

A cylinder mechanism 145 is fixed to the support portion 127,
A support plate 149 is fixed to a rod 147 of the cylinder mechanism 145. Note that guide mechanisms 151 and 153 are mounted above and below the cylinder mechanism 145.

On the front surface of the support plate 149, four holding pins 155 are attached at 90 °. The holding pin 155 is mounted so that the mounting position can be changed in order to have versatility. These holding pins 155 are inserted into the through holes of the pallet 1.

On the opposite side of the pallet 1 from the support plate 149, another support plate 157 is disposed.
According to 149, the pallet 1 is fixed by being clamped.

 Next, the configuration of the printing device 123 will be described.

The printing device 123 has a configuration as shown in FIG. 11 to FIG. In addition, as shown in FIG.
A gantry 161 is fixed on 5, and a bracket 163 is fixed to an upper end of the gantry 161. The printing device 123 is fixed to the bracket 163.

Another bracket 165 is fixed to the bracket 163, and a ball screw 167 is attached to the bracket 165. The lower end of the ball screw 167 has a gear 169
(Shown in FIG. 13) is fixed, and another gear 171 (shown in FIG. 13) is meshed with the gear 169. A shaft 173 is fixed to the gear 171. The shaft 173 is extended in the conveying direction of the pallet 1, and has a gear 17 at its end.
5 is fixed. Another gear 177 meshes with the gear 175, and a shaft 179 is fixed to the gear 177.
A handle 181 is fixed to an end of the shaft 179.
The shaft 179 is supported by shafts 183 and 185.

On the other hand, a ball nut 187 is screwed into the ball screw 167, and an elevating member 189 is fixed to the ball nut 187. Therefore, by rotating the handle 181 in an appropriate direction, the elevating member 189 can be raised or lowered, and can be adjusted according to the size of the pallet. In addition, ball screw 16
As shown in FIG. 13, guide mechanisms 190, 19
2 are installed.

A cylinder mechanism 191 is fixed to the elevating member 189, and another elevating member is attached to a rod 193 of the cylinder mechanism 191.
195 is fixed. Therefore, by driving the cylinder mechanism 191, the lifting member 195 can be raised or lowered. Note that guide mechanisms 194 and 196 are provided on both sides of the cylinder mechanism 191 as shown in FIG.

A slide member 197 is attached to the elevating member 195. That is, the slide member 197 is slidably attached to the guide bar 198 extending in the horizontal direction. On the other hand, a drive motor 199 is fixed to one end of the lower surface of the elevating member 195, and a pulley 201 is attached to a rotation shaft of the drive motor 199.
Is fixed. A pulley 203 facing the pulley 201 in the direction of transport of the pallet 1 is disposed, and a belt 205 is wound between the pulleys 201 and 203. The lower surface of the slide member 197 described above is fixed to the belt 205. Therefore, by rotating the drive motor 199 in an appropriate direction, the slide member 197 can be slid along the guide bar 198 in the transport direction of the pallet 1. FIG. 12 shows the relationship among the drive motor 199, the pulleys 201 and 203, and the belt 205.

A cylinder mechanism 209 is fixed to the slide member 197. The rod 211 of the cylinder mechanism 209 is extended in the vertical direction, and a squeegee 214 is fixed to a lower end of the rod 211 via a bracket 213. Below the squeegee 214, a screen 215 suspended from the elevating member 195 is arranged. By driving the cylinder mechanism 209, the squeegee 214 can be raised or lowered.

Then, the side of the pallet 1 is disposed below the screen 215, and the squeegee 214 is slid in the direction of transport of the pallet 1 above the screen 215, thereby performing desired printing on the side of the pallet 1.

 Next, the configuration of the drying unit 11 will be described.

The drying means 11 of this embodiment is an ultraviolet irradiation device (hereinafter, referred to as UV
Irradiation device). This UV irradiation device is disposed on the side of the ball nut 187 opposite to the heating means 7,
By irradiating the side of the printed pallet 1 with ultraviolet light,
It is to be dried.

The drying means 11 includes a ball nut 18 in the same manner as the heating means 7.
Since they are arranged at 7, the height position can be adjusted according to the size of the pallet, so that drying can be performed efficiently and versatility can be provided.

As shown in FIG. 1, stopper mechanisms 221 are provided at a plurality of positions (four in this embodiment) on the transport path of the pallet 1.

Hereinafter, the configuration of the stopper mechanism 221 will be described.

The stopper mechanism 221 has a configuration as shown in FIG. 14 and FIG. First, the slide member 2 is placed on the base 223.
25 is slidably mounted in a direction parallel to the pallet 1 transport path. That is, a pair of guide members 227, 227 are fixed to the lower end of the slide member 225, while a pair of rails 229, 229 are laid on the base 223. The guide members 227 are slidably engaged with the rails 229.

A ball screw is inserted in the direction parallel to the pallet 1 conveyance path.
231 is laid, and this ball screw 231 has a handle
233 is fixed. On the other hand, a ball nut 235 is screwed into the ball screw 231, and the slide member 225 already described
Is fixed to the ball nut 235. Therefore, by rotating the handle 233 in an appropriate direction, the slide member 225 can be slid in a direction parallel to the transport path of the pallet 1, whereby the stopper position when the size of the pallet is changed can be set. Can be adjusted.

A cylinder mechanism 237 is fixed to the slide member 225, and a pair of pins 243, 243 is connected to a rod 239 of the cylinder mechanism 237 via a connection member 241.
Then, by driving the cylinder mechanism 237,
The pair of pins 243 is protruded from a direction perpendicular to the conveyance path of the pallet 1. Thus, the transported pallet can be stopped at a predetermined position.

 The operation will be described based on the above configuration.

The pallet 1 is first conveyed to the printing position B by the conveying means 3 with the surface to be printed facing upward. At this time, on the primary side of the printing position B, the surface to be printed is heated by the gas burner 7 and oxidized to improve the adhesion of the ink.

The pallet conveyed to the printing position B is moved to the stopper mechanism 22.
1 stops at a predetermined position. Next, the supporting device 121 is advanced in the pallet direction, and the pallet 1 is held by the supporting plate 157 disposed on the opposite side of the pallet from the supporting plate 149 of the supporting device 121, and the position is held.

In this state, first, the elevating member 195 is lowered by operating the cylinder mechanism 191 to press the screen 215 against the surface of the pallet 1 to be printed. After that, the cylinder mechanism 20
The squeegee 214 is pressed against the screen 215 by 9 and the drive member 199 drives the slide member 197 to travel. Thereby, predetermined screen printing is performed on the side surface of the pallet 1.

At this time, since printing cannot be performed in the fork insertion hole on the side surface of the pallet, the cylinder mechanism 209 is driven at the position of the fork insertion hole, and the squeegee 214 is raised and lowered again at the printing position. It is configured to print while repeating raising and lowering.

That is, the cylinder mechanism 209 is driven in accordance with the stroke of the printing target surface. Therefore, if there are three printing surfaces on the side surface of the pallet, the squeegee 214 is moved up and down three times by driving the cylinder mechanism 209. If the squeegee 214 is moved to one or the entire surface, the squeegee 214 is moved up and down once.

In this manner, printing is performed by repeatedly moving the squeegee 214 up and down while the slide member 197 is driven by the drive motor 199. Therefore, printing can be performed regardless of the type of pallet (two-sided pallet, four-sided pallet, etc.) and regardless of the number of printing locations, and has sufficient versatility.

The height position of the screen 215 is adjusted in advance according to the size of the pallet 1 by operating the handle 181.

When the printing is completed, the pallet 1 is released from the holding state by the support device 121 and the stopper mechanism 221 and is conveyed by the conveying means 3 in the direction of the drying position C. At this time, on the secondary side of the printing position B, the printing surface is irradiated with ultraviolet rays by the UV irradiation device 11, and the printing surface is dried.

The pallet 1 is transported to the drying position C by the transporting means 3 and then returned to the reversing position A. At the reversal position A, the print surface is rotated so as to point the next print target surface upward.

That is, the pallet 1 returned to the reversing position A is sandwiched between the support plate 73 of the rotating device 41 advanced by the drive of the cylinder mechanism 53 and the support plate 111 of the support device 43 advanced by the drive of the cylinder mechanism 107. In that state, rotating device 4
The claw member 89 attached to the support plate 73 on the first side is
The pallet 1 is rotated by the drive of step 5, and is firmly engaged with the through hole of the pallet 1. Thus, the pallet 1 is fixed to the support plate 73 side.

Next, the support device 43 is retracted, and the pallet 1 is held only on the rotating device 41 side. Next, the drive motor 61 is driven to raise the support plate 73, that is, the pallet 1 by a predetermined amount. This is to enable the pallet 1 to rotate.

Next, the drive motor 81 is driven to rotate the pallet 1 by a predetermined angle (for example, 90 °). After the rotation, the pallet 1 is lowered, the engagement state of the claw member 89 is released by driving the cylinder mechanism 95, and the holding by the rotating device 41 is released.

As a result, the pallet 1 is in a state where the next print target surface faces upward, and is conveyed to the printing position B by the conveying means 3, and the same steps as described above are repeated.

Hereinafter, the same process is repeated until a predetermined screen printing is performed on all the print target surfaces of the pallet 1.

Incidentally, in these series of steps, a plurality of stopper mechanisms are provided.
221 functions at a predetermined timing.

According to this embodiment, the following effects can be obtained.

First, since all printing work conventionally entrusted to the manual work of employees can be automatically performed, work efficiency can be improved and cost can be reduced.

Even when the pallet 1 has a large number of print target surfaces, the pallet 1 can be automatically rotated by appropriately rotating the pallet 1 by the reversing means 5, which is extremely efficient.

(Effects of the Invention) As described above in detail, according to the pallet printing apparatus and the pallet printing method of the present invention, the printing operation on the side surface of the pallet can be automatically performed, so that the working efficiency can be improved.

In addition, since each mechanism is configured to have general versatility, it is possible to cope with a change in the size and type of the pallet, thereby improving productivity and reducing costs.

 Further, good and stable printing is possible.

[Brief description of the drawings]

1 to 15 show one embodiment of the present invention.
1 is a plan view showing the entire configuration of the apparatus, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, FIG. 3 is a sectional view taken along the line III-III of FIG. 1, and FIG. -IV view, FIG. 5 is VV of FIG.
FIG. 6 is a front view of the claw member, FIG. 7 is VI of FIG.
FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 7, FIG. 9 is a sectional view taken along the line IX-IX in FIG. 1, and FIG. 10 is a sectional view taken along the line XX in FIG.
FIG. 11 is a view showing the XI part of FIG. 9 in detail, FIG. 12 is a view showing a part of FIG. 11 extracted, and FIG. 13 is a view of FIG.
XIII-XIII view, FIG. 14 is a front view of the stop mechanism, FIG.
FIG. 15 is a side view of the stop mechanism, and FIG. 16 is a perspective view of the pallet. A is a reversing position, B is a printing position, C is a drying position, 1 is a pallet, 3 is a conveying means, 5 is a reversing means, 7 is a heating means, 9 is a heating means,
Is a printing means, 11 is a drying means, 41 is a rotating device, 43 is a supporting device, 47 is an apparatus main body, 53 is a cylinder mechanism, 59 is a lifting member,
73 is a support plate, 89 is a claw member, 101 is a pin, 107 is a cylinder mechanism, 121 is a support device, 123 is a printing device, 127 is a support portion, 129
Is a ball screw, 143 is a ball nut, 145 is a cylinder mechanism, 149 and 157 are support plates, 189 and 195 are lifting members, 197 is a slide member, 214 is a squeegee, 215 is a screen, and 221 is a stopper mechanism.

Claims (2)

(57) [Claims] 1. A step of turning a pallet in an upright position to a reverse position and rotating the pallet by a predetermined angle so that the next print target surface faces upward, and transporting the pallet with the print target surface facing upward to a print position. Heating the printing target surface, transferring the heated pallet to the printing target surface to the printing position, and performing screen printing on the printing target surface, and moving the screen-printed pallet to the drying position. A step of drying the surface to be printed when transporting, and a step of returning the dried pallet transported to the drying position to the reversal position and rotating the pallet by a predetermined angle to make the next surface to be printed upward, A pallet printing method comprising the steps of: repeating the above steps until predetermined printing is performed on all print target surfaces. 2. A conveying means for reciprocating a pallet in an upright state between a pallet reversing position, a printing position, and a drying position, and provided at the reversing position, holding the pallet and rotating the pallet by a predetermined angle. By this means, reversing means for turning the side of the pallet to be printed next upward, and being disposed on the primary side of the printing position, being reversed by the reversing means and conveyed to the printing position by the conveying means Heating means for heating a printing target surface of the pallet; printing means provided at the printing position, holding a pallet for heating the printing target surface by the heating means, and performing screen printing on the printing target surface; The printing surface of the pallet which is arranged on the secondary side of the printing position, is subjected to screen printing by the printing means, and is conveyed to the drying position by the conveying means is dried. A pallet printing apparatus, comprising: drying means for drying.