JP5203076B2 - Jig for printing - Google Patents

Description

  The present invention relates to a printing jig, and more particularly to a printing jig capable of neatly performing printing including thermal transfer printing even in a tapered cylindrical container.

  For example, in thermal transfer printing, a transfer foil in which a release layer, one or more color ink layers, and a thermal adhesive layer are printed in this order on a base film that serves as a support is placed on a plastic substrate to be printed with the thermal adhesive layer down. It is a printing method in which a color ink layer is adhered to a substrate by placing it on a container or the like and applying heat and pressure with a heat and pressure means.

  This thermal transfer printing is often used in cosmetic containers and the like because even a multicolor pattern can shorten the painting work in one step of the transfer work and can reduce the loss of the substrate due to a printing mistake.

  By the way, when performing thermal transfer printing on a cylindrical container, since the parallel cylindrical container rotates straight in the printing direction when the container is rotated in a state where the thermal transfer film is pressed by the thermal pressurization means, there is no problem. Thermal transfer printing can be applied.

However, in a container formed in a tapered cylindrical shape with different outer diameters at the upper part and the lower part, when the container is rotated during thermal transfer printing, the outer diameter of the tapered cylindrical container is different between the upper part and the lower part. There is a problem in that the peripheral speed is deviated between the large diameter portion and the small diameter portion, which makes it difficult for the thermal transfer film to be in uniform contact with each other.
Further, the difference in peripheral speed between the large-diameter portion and the small-diameter portion of the tapered cylindrical container is similarly caused in the other printing methods using the printing plate, so that the printing plate is not evenly in contact with the container, and printing defects are not caused. There was a problem that it was easy.

  In the case of a printing jig that performs printing while rotating the container, the chuck device that holds the container rotatably about its axis needs to be returned to the original position after printing the container. The mechanism for returning the chuck device to the origin position is complicated, and there are problems that adjustment of the printing jig is troublesome and the manufacturing cost of the printing jig is high.

  In view of the problems of the conventional printing method described above, the first object of the present invention is to provide a printing jig capable of neatly performing printing including thermal transfer printing even in a tapered cylindrical container. And

  Also, the present invention provides a printing jig that simplifies the mechanism for returning the chuck device to the origin position after printing on the container, and that does not require labor to adjust the printing jig. Is the second purpose.

To achieve the above first, the printing jig of the present invention, the printing unit is a printing jig performs printing while rotating the container formed in a tapered cylindrical shape, the container about its axis A chuck device that holds the chuck device in a rotatable manner, an arc-shaped rail that guides the chuck device that moves the chuck device in an arc shape with the center point of the taper angle of the held container as a center, and a chuck along the rail A lateral movement device having a cylinder for reciprocating the device, and a chuck device that holds the container rotatably about its axis, and stops the origin position by matching the chuck angle to the printing origin position Provided with an origin return mechanism comprising a cam that engages with a claw disposed on the fixed side at an angle of 5 to stop the reverse rotation of the chuck, and a weight body that urges the cam in the reverse rotation direction behind the rotation of the origin position. Features To.

  In this case, a universal joint can be interposed between the cylinder rod and the chuck device.

  Further, the chuck device can be configured to have a bottom chuck and a mouth chuck for holding the container, and two receiving rollers for supporting the container from below.

According to the onset Ming printing jig, the printing unit is a printing jig performs printing while rotating the container formed in a tapered cylindrical shape, rotatably holds the container about its axis Since the chuck device and the lateral movement device that moves the chuck device in an arc shape with the center point of the taper angle of the held container as a center are provided, the thermal transfer film is pressed against the container by the thermal pressurizing means. By moving in an arc shape, the peripheral diameter of the large-diameter portion and the small-diameter portion of the tapered container can be made equal to rotate the container, thereby bringing the thermal transfer film into uniform contact with the printing unit, Defects such as faint printing and skipping can be prevented.
Similarly, the container can be rotated by equalizing the peripheral speed of the large-diameter portion and the small-diameter portion of the tapered container by moving in a circular arc shape while pressing the printing plate against the container. The printing plate can be brought into contact with the printing portion uniformly to prevent defects such as print fading and printing skipping.
The lateral movement device includes an arc-shaped rail that guides the chuck device, and a cylinder that reciprocates the chuck device along the rail, thereby automatically moving the container in an arc shape accurately and tapering. Compared to a configuration in which the corner is moved like a compass with the center point of the corner as a fulcrum, the lateral movement device can be made compact.

Further, the chuck device that holds the container rotatably about its axis engages with the claw disposed on the fixed side at the angle of the origin position for stopping the chuck by matching the angle of the chuck to the printing origin position. After the rotation of the container is rotated once and the entire circumference printing is completed, a return to origin mechanism is provided which includes a cam for stopping the reverse rotation and a weight body that biases the cam in the reverse rotation direction behind the rotation of the origin position. When the container is removed from the chuck device, the chuck reverses by the urging force of the weight body, and automatically stops at the origin position where the cam engages the claw.
For this reason, the mechanism for returning the chuck device to the origin position can be simplified, and the labor for adjusting the printing jig is not required, and the manufacturing cost of the printing jig can be reduced.

  Further, by providing a universal joint between the cylinder rod and the chuck device, it is possible to absorb a difference in movement that occurs between the chuck device that moves in an arc shape and the rod that linearly expands and contracts.

Further, the chuck device includes a bottom chuck and a mouth chuck for holding the container and two receiving rollers for supporting the container from below, so that the container is pressed from above when the thermal transfer film is thermally transferred. when the can two receiving rollers are rotatably supports the container between them.

  Hereinafter, embodiments of a printing jig of the present invention will be described with reference to the drawings.

  1 to 6 show an embodiment of the printing jig of the present invention.

  This printing jig is for performing thermal transfer printing while rotating a container 1 having a cylindrical portion formed in a tapered cylindrical shape as a printing part, and holds the container 1 rotatably about its axis. A chuck device 2 and a lateral movement device 3 that moves the chuck device 2 in a circular arc shape having a center point O of the taper angle θ of the held container 1 as a substantial center are provided.

  The chuck device 2 holds the container 1 so that the central axis of the container 1 is substantially horizontal. The chuck device 2 includes a bottom chuck 21 having a shallow recess that fits outside the bottom 11 of the container 1, and a chuck air cylinder 22. Two conical mouth chucks 23 provided on the rod 22a and having a tip portion inserted into the mouth portion 12 of the container 1, and the bottom chuck 21 and the container 1 held by the mouth chuck 23 are supported from below. Receiving roller 24.

As shown in FIG. 5, the bottom chuck 21 is rotatably supported by a bearing 25 and penetrates the bearing 25, and the shaft 41 that penetrates the bottom chuck 21 has an angle of the bottom chuck 21 at the printing origin position. An origin return mechanism 4 that stops together is provided.
This origin return mechanism 4 is provided eccentrically on the shaft 41 and a cam 43 which engages with a claw 42 disposed on the fixed side at an angle of the origin position and stops the reverse rotation of the bottom chuck 21, and is rotated rearward of the origin position. And a weight body 44 that biases the cam 43 in the reverse direction at an angle.
On the other hand, the bottom chuck 21 is provided with a positioning convex portion 21a that fits into a positioning concave portion 11a provided in the bottom portion 11 of the container 1, and the positioning of the container 1 with respect to the chuck device 2 is performed. This is done by fitting the portion 21a and the positioning recess 11a.
In this case, the positioning convex portion 21 a is provided so as to be able to retract while being biased toward the protruding side. When the bottom portion 11 of the container 1 is rotated in the reverse direction while being applied to the bottom chuck 21, When the bottom 11 of the container 1 is idle with respect to the bottom chuck 21 where the reverse rotation is stopped, and the position of the positioning convex 21a coincides with the position of the positioning concave 11a, the positioning convex 21a By projecting and fitting into the positioning recess 11a, the rotation of the container 1 is stopped.
Further, since the chucked container 1 rotates slightly more than 360 degrees in the thermal transfer printing of the entire circumference, the origin returning mechanism 4 removes the container 1 from the bottom chuck 21 after the thermal transfer printing is performed. The body 44 reverses a little by the urging force of the body 44 and returns automatically, and stops automatically at the origin position where the cam 43 engages the claw 42.

Conventionally, when the entire circumference of a cylindrical container is processed in thermal transfer printing, etc., if there is alignment, the rack position and pinion gear have been used or the origin position has been returned using pulleys and wires. Thus, the mechanism using a conventional gear, pulley, or the like can be omitted by returning the cam 43 to the origin position by gravity.
By using the origin return mechanism 4 of the present embodiment, it is possible to perform origin return for positioning a container such as a tapered cylindrical container 1 where the gear diameter cannot be set without external power.

The mouth chuck 23 is advanced and retracted by the chuck air cylinder 22, and holds the container 1 together with the bottom chuck 21 in a state where the tip end portion is inserted into the mouth 12 of the container 1.
An air ejection hole (not shown) is provided at the distal end portion of the mouth chuck 23, and the inside of the container 1 is filled with compressed air from the mouth portion 12 of the held container 1.
Thereby, the inside of the container 1 made of plastic is pressurized, and the container 1 is prevented from being deformed by the heat and pressure by the heat and pressure means 5.

The receiving roller 24 is for supporting when the heat pressurizing means 5 presses the container 1, and the two receiving rollers 24 are rotatably installed so as to support the container 1 between them. Yes.
In this embodiment, the receiving roller 24 is a cylindrical shape without a taper, and the mouth 12 side of the container 1 is slightly opened left and right so that the central axis of the container 1 to be supported is horizontal. is set up.

  On the other hand, the lateral movement device 3 includes an arc-shaped rail 31 that guides the chuck device 2 and an air cylinder 32 that reciprocates the chuck device 2 along the rail 31.

The rail 31 is formed in an arc shape centering on the center point O of the taper angle θ of the container 1 held by the chuck device 2 (see FIG. 3A).
Further, the rail 31 has a drum-shaped cross section, and a channel-shaped guide portion 26 fixed to the bottom of the chuck device 2 is slidably fitted thereto.

In the air cylinder 32, two universal joints 33 are arranged at the tip of the rod 32 a, and the rod 32 a is connected to the chuck device 2 through the universal joint 33.
The air cylinder 32 moves the chuck device 2 along the rail 31 due to the expansion and contraction of the rod 32a, but the difference in motion generated between the chuck device 2 that moves in an arc shape and the rod 32a that expands and contracts linearly is calculated. The universal joint 33 absorbs the water.

Next, the operation of the printing jig of this embodiment will be described.
The container 1 is placed on the receiving roller 24 in a state where the rod 32 a of the air cylinder 32 of the lateral movement device 3 is contracted and the chuck device 2 is moved to the initial position.
Then, when the bottom portion 11 of the container 1 is rotated in the reverse direction while being applied to the bottom chuck 21 that has returned to the printing origin position, the positioning convex portion 21a of the bottom chuck 21 automatically becomes the positioning concave portion 11a of the container 1. Therefore, the container 1 stops at the printing origin position.

Next, the chuck air cylinder 22 is operated, the container 1 is held by the mouth chuck 23 and the bottom chuck 21, and the container 1 is filled with compressed air for preventing deformation from the mouth chuck 23.
Then, as shown in FIG. 4, the thermal pressurization means 5 and the thermal transfer film 6 installed above are lowered and pressed against the body portion of the container 1, and at the same time, the lateral movement device 3 is operated.
The heat pressurizing means 5 is formed in a flat plate shape having a contact portion on the lower surface made of heat-resistant silicon rubber and capable of rolling the container 1.
Further, the thermal pressurizing means 5 has a contact portion set slightly inclined so as to correspond to the tapered cylindrical container 1 whose upper surface is supported while being slightly inclined in the axial direction.

When the lateral movement device 3 is operated, the container 1 moves in an arc shape in the lateral direction. However, since the container 1 is rotatably held by the chuck device 2, the thermal transfer film 6 pressed by the thermal pressurizing means 5. Roll on an arcuate path.
As shown in FIG. 3 (b), a fan-shaped transfer foil 61 in which the body portion of the container 1 is developed is provided on the base film 62 on the heat transfer film 6, and is pressed by the heat pressing means 5. In this state, the container 1 rolls in an arc shape, whereby the transfer foil 61 is thermally transferred and printed on the entire circumference of the body of the container 1.

When the thermal transfer printing of the entire circumference of the container is completed, the thermal pressurizing means 5 and the thermal transfer film 6 return upward, the air cylinder 32 of the lateral movement device 3 contracts, and the chuck device 2 returns to the initial position.
When the chuck air cylinder 22 contracts and the container 1 is removed from the chuck device 2, as shown in FIG. The cam 43 reversely returns from a position slightly beyond the origin position by the action of the weight body 44, and engages with the claw 42 at the angle of the origin position and stops.

Note that the expansion and contraction of the air cylinder 22 for the chuck and the air cylinder 32 of the lateral movement device 3 and the elevating and lowering of the heat pressurizing means 5 and the thermal transfer film 6 are performed by delaying the operation timing and speed as shown in FIG. 71, an interlocking electromagnetic valve 72, a speed controller 73, and the like are automatically controlled and interlocked with a series of flows.
In FIG. 6, the bottom chuck and the origin return mechanism are omitted.

Thus, the printing jig of the present embodiment is a printing jig that performs printing while rotating the container 1 whose printing portion is formed in a tapered cylindrical shape, and the container 1 can be rotated around its axis. Since the chuck device 2 to be held and the lateral movement device 3 to move the chuck device 2 in an arc shape with the center point O of the taper angle θ of the held container 1 as a center, the thermal transfer film is provided on the container 1. 6 can be rotated by making the peripheral diameters of the large diameter part and the small diameter part of the tapered container 1 equal to each other by rotating the container 6 in a circular arc shape while being pressed by the thermal pressurizing means 5. The thermal transfer film 6 can be brought into contact with the printing portion uniformly to prevent defects such as fading or printing skipping.
In addition, by using a printing plate (not shown) instead of the thermal transfer film 6 and the thermal pressurizing means 5 and moving it in an arc shape while pressing the printing plate against the container 1, the size of the tapered container 1 is similarly increased. The peripheral speed of the diameter part and the small diameter part can be made equal, and the container 1 can be rotated, whereby the printing plate can be uniformly brought into contact with the printing part to prevent defects such as blurring and printing skipping. it can.

  In this case, the lateral movement device 3 includes an arc-shaped rail 31 that guides the chuck device 2 and an air cylinder 32 that reciprocates the chuck device 2 along the rail 31, thereby automatically and accurately controlling the container 1. The lateral movement device 3 can be formed more compactly as compared with a configuration in which it is moved like a compass with the center point O of the taper angle θ as a fulcrum.

  Further, by providing a universal joint 33 between the rod 32a of the cylinder and the chuck device 2, a difference in motion generated between the chuck device 2 that moves in an arc shape and the rod 32a that linearly expands and contracts is absorbed. can do.

  Further, the inside of the container 1 is pressurized by the chuck device 2 being filled with compressed air from the mouth portion 12 of the container 1, and the container 1 is prevented from being deformed due to thermal pressurization by the thermal pressurizing means 5. Can do.

  The chuck device 2 also has an origin return mechanism 4 that stops the chuck by matching the chuck angle to the origin position of printing. The origin return mechanism 4 engages with the claw 42 at the angle of the origin position to stop the reverse rotation of the chuck. By providing the cam 43 and the weight body 44 that urges the cam 43 in the reverse rotation direction at the rotation rear angle of the origin position, the container 1 is rotated once and rotated all over, and then the container 1 Is removed from the chuck device 2, the chuck is reversed by the urging force of the weight body 44, and automatically stops at the origin position where the cam 43 engages the claw 42.

As mentioned above, although the jig for printing of the present invention was explained based on the example, the present invention is not limited to the composition described in the above-mentioned example, and the composition is suitably changed in the range which does not deviate from the meaning. Can be changed.
The printing jig according to the present invention is not only a container formed in a tapered cylindrical shape having a large upper portion and a small lower portion described in the above embodiment, but also a tapered cylindrical shape having a small upper portion and a large lower portion. The present invention can also be applied to thermal transfer printing of containers formed in the above.
Further, the printing jig of the present invention can be applied to thermal transfer printing of a cylindrical container that needs to be aligned with a lid member, for example, in addition to a container having a printing portion formed in a tapered cylindrical shape. .

Since the printing jig of the present invention has a characteristic that printing can be carried out neatly even in a tapered cylindrical container, for example, it can be used suitably for thermal transfer printing of a tapered cylindrical cosmetic container. Can do.
In addition, the printing jig of the present invention has a characteristic that the mechanism for returning the chuck device to the original position after printing on the container is simplified, and no adjustment is required for the adjustment of the printing jig. Therefore, for example, it can be suitably used for thermal transfer printing of a cylindrical cosmetic container that needs to be aligned with the lid member.

It is a top view which shows one Example of the jig for printing of this invention. It is a top view which shows the jig for printing which hold | maintained the container with the chuck | zipper apparatus. (A) is explanatory drawing which shows the taper cylindrical container and taper angle and center point which are printed with the jig for printing, (b) is a bottom view of a thermal transfer film. It is a principal part enlarged view which shows the jig | tool for printing, a heat press means, and a thermal transfer film. The origin return mechanism is shown, (a) is a plan view thereof, (b) is a front view thereof, and (c) is a view as seen from the mouth chuck side. It is a circuit diagram which shows the pneumatic control of the jig for printing.

DESCRIPTION OF SYMBOLS 1 Container 11 Bottom part 11a Positioning recessed part 12 Mouth part 2 Chuck apparatus 21 Bottom part chuck 21a Positioning convex part 22 Chuck air cylinder 22a Rod 23 Mouth part chuck 24 Receiving roller 25 Bearing 26 Guide part 3 Horizontal movement apparatus 31 Rail 32 Air cylinder 32a Rod 33 Universal joint 4 Origin return mechanism 41 Shaft portion 42 Claw 43 Cam 44 Weight body 5 Thermal pressurizing means 6 Thermal transfer film 61 Transfer foil 62 Base film 71 Delay timer solenoid valve 72 Interlocking solenoid valve 73 Speed controller

Claims (3)

A printing jig for performing printing while rotating a container having a printing cylinder formed in a tapered cylindrical shape, a chuck device for holding the container rotatably about its axis, and a container for holding the chuck device A lateral movement device having an arcuate rail that guides the chuck device and a cylinder that reciprocally moves the chuck device along the rail, the arcuate rail that moves the arcuate shape about the center point of the taper angle . A chuck device that holds the container rotatably about its axis engages with a pawl disposed on the fixed side at an angle of the origin position for stopping the chuck by matching the angle of the chuck to the origin position of printing. A printing jig comprising an origin return mechanism comprising a cam that stops reverse rotation and a weight that biases the cam in the reverse rotation direction behind the rotation of the origin position .   2. A printing jig according to claim 1, wherein a universal joint is interposed between the rod of the cylinder and the chuck device.   3. The printing jig according to claim 1, wherein the chuck device has a bottom chuck and a mouth chuck for holding the container, and two receiving rollers for supporting the container from below.

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