JPH057445U - Thermal transfer device - Google Patents

Abstract

(57) [Abstract] [Purpose] A high-speed production of painting products is possible in a device that manufactures painting products by thermally transferring a pattern onto the surface of an object by pressing a hot platen onto the object via a transfer film. . A transport means 3 for sending jigs 23 for supporting tubes at regular intervals, and a plurality of heating plate units 2A, 2 arranged in parallel in the tube transport direction above the transport means 3 are provided.
B, conveying means 3 and respective heating plate units 2A, 2B
And a means 5a, 5b for supplying the transfer film 4 between them and a plurality of heating plate units 2A, 2B without overlapping the tubes and receiving thermal transfer at the arrangement pitch intervals of the jigs 23 in the conveying means 3. To pass through.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention transfers a transfer plate having a predetermined transfer pattern through a transfer film. Transfer the transfer layer of the transfer film according to the above pattern by pressing it against the object The present invention relates to a thermal transfer device.

[0002]

[Prior art]

  Heat used to transfer a pattern consisting of patterns and letters to the surface of a resin molded product As is well known, the transfer device (hot stamp) has a pattern with the above pattern on the surface. With the transfer plate formed in a convex shape by the screen attached to the heating plate, The transfer film surface is pressed by the pressure and heat at the time of this pressing The transfer layer formed on the surface is transferred according to the above pattern to produce a painted product. However, the transferred material to be painted is molded with a synthetic resin as shown in Fig. 7. It is in the form of a hollow tube and it is necessary to transfer the pattern B onto the peripheral surface of the tube A. When it is necessary, since the tube A is flexible, the tube A Thermal transfer cannot be performed by pressing the board.

[0003]   Therefore, before the tube bottom part a is sealed by heat welding, the tube A Insert a jig inside to keep the tube shape and keep the tube A rotatable. Hold the hot platen against the tube A while holding it, and A is conveyed, and the tube A is rotated by the contact pressure at that time to rotate the tube A. It is considered to paint on.

[0004]

[Problems to be solved by the device]

  By the way, in the above device for painting on tubes, high-speed painting In order to carry out mass production by attachment, speed up the film supply to the hot platen. In addition, the thermal transfer time should be shortened. However, due to recent improvements Even though transfer films have been developed that require significantly less transfer time, , It is necessary to secure a certain transfer time in order to give good quality painting to the tube. Since it is difficult to paint with a shorter transfer time, mass production I didn't like the lack of sex.

[0005]   Therefore, the present invention uses the above-mentioned heating plate for a tubular transfer object such as a tube. For painting, we provide a thermal transfer device that can produce high-quality painting products at high speed. The subject is the subject.

[0006]

[Means for Solving the Problems]

  The thermal transfer device according to the present invention is configured as follows to address the above problems. And are characterized.

[0007]   That is, the device according to claim 1 of the present invention (hereinafter, referred to as the first device) is a predetermined device. Of the transfer plate having the transfer pattern of The transfer is carried out by pressing it against the transferred object through the transfer film. In a thermal transfer device that transfers the transfer layer of the film to the surface of the transfer target according to the above pattern. The plurality of heating plates that are arranged side by side in the conveyance direction of the transfer target, and And a film supply means for supplying the transfer film below the transfer film, and the transferred material. A conveying means for continuously conveying a jig for rotatably supporting the jig at a fixed interval; When the transfer target is loaded directly below these transfer plates, they are lowered and And a hot platen elevating means for elevating after transfer, and a jig arranging tool in the above-mentioned conveying means. The transfer interval is such that the transferred material is thermally transferred only by one of the multiple heating plates. It is characterized in that it passes through the hot platen without being duplicately transferred.

[0008]   Further, a device according to claim 2 of the present invention (hereinafter referred to as a second device) is a carrier device. The transport speed between the thermal transfer operations of the stages is higher than the transport speed during the thermal transfer operations. It is characterized by being.

[0009]

[Action]   According to the first aspect of the invention described above, the transferred object conveyed while being supported by the jig. When the hot platen is pressed against the object, the transferred object is rotated in contact with the hot platen. Allows the transfer pattern formed on the transfer plate to be transferred by the transfer layer of the transfer film. It is transferred to the peripheral surface of the transfer target. In that case, a plurality of transfer In addition to providing a heating plate, the pitch of the jigs in the transport means should be Heat transfer only by any one of Since it is supposed to pass through the board, multiple thermal boards are operated simultaneously to perform thermal transfer. Therefore, it is possible to paint as many transfer objects as the number of hot plates at one time. In addition, since thermal transfer is performed while the transfer target is continuously conveyed, the transfer target is transferred during thermal transfer. The transfer material can be fed, and the time interval between thermal transfer operations is shortened.

[0010]   Further, according to the second aspect of the invention, the heating platen is lowered to perform thermal transfer on the transferred object. When the thermal transfer is completed and the heating platen rises while the Since the transfer speed of the transfer object is increased, the transfer speed of the transfer object is increased, Therefore, the thermal transfer operation interval is further shortened.

[0011]

【Example】

  Next, an embodiment of the present invention will be described with reference to the drawings.

[0012]   FIG. 1 is a front view of an embodiment of a thermal transfer device 1 according to the present invention, and FIG. 2 shows its schematic configuration. As shown, two hot platen units 2A and 2B are installed in parallel, and A transport means 3 for transporting the tube A shown in FIG. 7 is provided below the A and 2B. The tube A is continuously conveyed by the feeding means 3 and each heating plate unit 2A and 2B are simultaneously carried in directly below, and thermal transfer is performed in synchronization with the carrying-in. It is configured so that the tube A that has been thermally transferred is further transported to the take-out position. Has been done. Also, transfer films 4 and 4 corresponding to the heating plate units 2A and 2B, respectively. The film supply means 5a, 5b for supplying the hot plate units 2A, 2B respectively It is provided accordingly.

[0013]   The above-mentioned conveying means 3 has a pair of end rails on the left and right sprockets 6 and 6. It consists of a chain conveyor constructed by spanning the chains 7, 7 The rolling force is input to the clutch brake 11 by the pulley 9 and the belt 10, In addition, the clutch brake 11 is transmitted to the conveying means 3. It

[0014]   In that case, transmission from the clutch brake 11 is performed by the pulleys 12 and 13 and the belt. 14 and first inputs to the first gearbox 15 shown in FIG. So After converting the transmission direction by 90 degrees and taking it out to the transmission shaft 16, the second gear box is By passing through the box 17, the transmission direction is converted again by 90 degrees and the sprocket shaft 18 Used to rotate the sprocket 6,6 and chain 7,7 ( That is, the conveying means 3) is driven.

[0015]   On the other hand, the sprocket shaft 18 is a pair of front and rear frames shown in FIGS. 19 and 19 and these frames 19 and 19 are attached to the chains 7 and 7, respectively. It is used as a travel guide member for the slide table 20 that is pulled more. Sanawa Then, as shown in FIG. 4, the chains 7 and 7 are spaced at regular intervals in the longitudinal direction of the chains. The ride stand 20 is fixed, and the slide stand 2 is attached to the frames 19 and 19. The guide rollers 21 to 21 for grasping both front and rear ends of 0 from above and below are attached to the chain 7 , 7 are driven, the slide table 20 passes directly under the two front and rear heating plates 2A, 2B. It is designed to circulate in an endless direction.

[0016]   Further, a support block 22 is erected on each slide base 20, and a tube is attached to the support block 22. The jigs 23 to 23 supporting A are rotatably supported. In that case, the jig 23- 23 is the front side of the thermal transfer device 1 with its rear end supported by the support block 22. Horizontally protruding, and the protruding portion fits inside the tube A with almost no space. It is shaped and passes directly under the hot platen units 2A, 2B by driving the chains 7, 7. It is designed to do.

[0017]   Next, the arrangement pitch interval of the jigs 23 to 23 in the transport means 3 and the heating plate unit The relationship between the arrangement intervals of 2A and 2B, as well as the jig 23 or the chuck in the conveying means 3. The relationship of the conveying speed of the tube A will be described with reference to FIG. The tools 23 are attached to the chains 7, 7 at a constant pitch interval, and the pitch interval is P. If the number of heating plate units is N, the jig 23 required for one thermal transfer cycle The feed amount L is set to a multiple of the number of heating plate units of the arrangement pitch interval P, that is, P × N. The arrangement pitch P is determined by the tube A, which is one of the plurality of heating plate units 2A and 2B. The heat transfer unit is heat-transferred only by the heat transfer unit and does not receive the heat transfer in duplicate. Is supposed to pass through.

[0018]   That is, specifically, in the case of this embodiment, as shown in FIG. Is one-third the length D of the heating platen unit, and The amount of protrusion L is set to be twice the pitch P of jig arrangement.

[0019]   By the way, the above-mentioned transporting means 3 passes through the rotational force transmission path shown in FIG. As described above, it is driven by the first gear box of this torque transmission path. The sprocket 24, 24 is attached to the transmission shaft 16 protruding from the spool 15, Using the sprockets 24, 24, the motor rotational force is branched and taken out. This The rotational force taken out by is used to drive the heating plate unit lifting means 25, which will be described in detail below. Then, the cam shaft 26 shown in FIG. 4 is rotated. Therefore, although not shown, The cam shaft 26 has a sprocket that interlocks with the sprockets 24, 24 in FIG. 3 by a chain. Is attached. In addition, the sprocket of the transmission shaft 16 and the conveying means 3 is As is apparent from the relationship between the sprocket shaft 18 and the sprocket shaft 18, Positioned in an angular direction, parallel to the transport direction of tube A as is clear from FIG. And then rotate.

[0020]   In the elevating means 25 of the heating plate units 2A and 2B, as shown in FIGS. Support that horizontally protrudes from the constant-side frame 27 to a position directly above the transporting means 3 The member 28 and the boss portions 28a, 28a provided on the support member 28 can be slid vertically. 4 slide rods 29-29 passed through Noh, and these slide rods 29- An upper plate 30 connected to the upper end of 29 and a lower plate 31 similarly connected to the lower end thereof And an up-and-down block 32 is formed by the connection plate 33 connected to the lower plate 31. The hot platen units 2A and 2B are suspended.

[0021]   That is, the support shaft 35 is attached to the fixed-side frame 27 above the cam shaft 26. An L-shaped link 36 that rotates about the center is attached, and a cam is attached to the cam shaft 26. The plate 37 is fixed, and the groove cam 38 formed on the cam plate 37 is attached to the L-shaped groove. A cam follower 39 pivotally supported on one end of the link of the link 36 is engaged, Causes the link 36 to swing in response to the rotation of the cam plate 37 and is connected to the tip of the other link. The raising / lowering block 32 and the heating plate units 2A and 2B that are being moved up and down. That Therefore, it is necessary to fix the above link tip in the proper position of the lifting block 32. In this embodiment, since the hot platen unit retracting mechanism is incorporated, the supporting member 28 The cylinder mounting plate 40 is arranged between the upper plate 30 and the upper plate 30, and the above-mentioned slide is attached to the cylinder mounting plate 40. The rods 29 to 29 are passed through, and the mounting plate 40 is aligned with the rods 29 to 29. The cylinder mounting plate 40 can be slidably mounted on the lower surface of the cylinder mounting plate 40. The link 41 is attached to the bracket 41 and the pin 42 and the long hole 4 are fixed to the bracket 41. It is connected by 3 and.

[0022]   In addition, the air cylinder 44 is fixed to the lower surface of the cylinder mounting plate 40 as well. The piston rod 45 is connected to the lower plate 31. Therefore, link 3 The turning force of 6 extends from the cylinder mounting plate 40 to the lower plate 31 via the air cylinder 44. Therefore, the lifting block 32 is driven.

[0023]   The heating plate units 2A and 2B have a heating means (not shown) built in the heating plate body 34. At the same time, the template 46 is fixed to the lower surface of the template 46, and the required transfer pattern is formed on the template 46. A transfer plate 47 having a is attached detachably. And the hot platen unit 2A, 2B and the lifting block 32 as a whole include the lifting block 32 and the fixed side frame. It is urged in the upward direction by a return spring 55 that is stretched between it and the frame 27.

[0024]   The transfer films 4 and 4 for the above hot plate units 2A and 2B are shown in FIG. The film feeding shafts 48, 4 are attached to both the left and right heating plate units 2A, 2B. 8 is pulled out from the film rolls 4a, 4a loaded in It is supplied to the lower side of the heating plate units 2A and 2B via 49 to 49 and is used for the thermal transfer described later. After being used, it is wound around the winding shafts 50, 50. Na Incidentally, 4b and 4b are sub film rolls for replenishment.

[0025]   Further, the thermal transfer device 1 has a rotation detecting device for detecting the rotation angle of the transmission shaft 16, for example. A rotation angle sensor 51 (see FIG. 2) is provided, and heat is detected by detecting this rotation angle. The controller determines whether the panel units 2A and 2B are in the raised position or the lowered position. 52, the rotation speed of the motor is controlled together with the feeding control of the transfer films 4 and 4. Degree control is performed.

[0026]   That is, in FIG. 6, when the hot platen units 2A and 2B are in the raised position, As the tube A is carried directly under it, it descends and is pressed against the tube A. . Then, the tube A is carried in that state while contacting the transfer plate 47 and rotating at a constant speed. It is sent (or conveyed while being rotated by a forcible drive means not shown). By this, painting is made on the peripheral surface of the tube, and when the painting is completed, the hot platen unit 2A and 2B rise. During that time, the tube A moves a distance L1 in FIG. Therefore, the L1 is in the thermal transfer operation period, and the heating plate units 2A and 2B are lowered. Is in contact with tube A. In that case, the controller 52 should be placed in the transport means 3. The rotation speed sensor 51 maintains a constant conveyance speed suitable for thermal transfer. It was detected that the thermal transfer was completed and the heating platen units 2A and 2B started to rise. When issued, the rotation speed of the motor 8 is increased from that point to increase the transport speed. This conveyance speed is increased until immediately before the start of the next thermal transfer operation (that is, the heating plate unit 2A). , 2B starts to descend). Therefore, one thermal transfer size in FIG. Of the carriage feed amount L, it is L2 during the thermal transfer operation subsequent to the feed amount L1 during the thermal transfer operation. The distance, the jig 23 and the tube A are fed at high speed. Such a model In order to control the rotation speed of the motor 8, as shown in FIG. And the controller 52 controls the motor 8 by the inverter 53. Is configured.

[0027]   Next, the thermal transfer operation will be described. The transporting means 3 is continuously driven as described above. Of the jig feed amount L in one thermal transfer cycle shown in FIG. Transport corresponding to the feed amount L1 when the thermal transfer operation by the units 2A and 2B is added The speed is selected as high as long as it does not hinder the thermal transfer. The transport speed between the thermal transfer operations corresponding to Is also set to high speed. In addition, a new tube A from the popper 54 shown in FIG. , A are loaded on the jigs 23, 23 at the loading section X of FIG. Tubes A, A with painting are removed from the jigs 23, 23 at the projecting section Y Is configured.

[0028]   Further, on the hot platen units 2A and 2B side, the air cylinder in the elevating block 32 is The piston rod 45 of the da 44 is extended, and as shown in FIG. The binder mounting plate 40 rises and contacts the stopper 56 provided on the upper plate 30. Are positioned, and in this state the lifting block 32 and the heating plate units 2A and 2B are It is driven up and down. In addition, the lifting block 32 and the heating plate units 2A and 2B are And the jig A and the jig 23 come directly under these hot platen units 2A, 2B, The unused film portions of the transfer films 4 and 4 are below the heating plate units 2A and 2B. The position of the transfer film as needed. So as to descend and rise after a predetermined thermal transfer time, The conveying means 3 and the elevating means 25 are operated in synchronization.

[0029]   Further, in each of the film supply means 5a and 5b, the preceding thermal transfer operation is completed. As the hot platen units 2A and 2B rise, the film is fed, and the next thermal transfer operation is performed. The film feed is configured to be stopped before.

[0030]   Therefore, in the thermal transfer device 1, as is clear from the above description, By driving the stage 3, a new tube is placed directly below each of the heating plate units 2A and 2B. As the jigs 23, 23 loaded with A, A are loaded, Then, the heating platen units 2A and 2B descend, and the transfer film 4 and 4 are sandwiched between the tubes A. , Is pressed against A. Therefore, the tubes A, A are continuously fed by the transport means 3. Therefore, it rotates by contact with the transfer plates 47, 47 in the heating plate units 2A, 2B. However, the unused transfer layers of the transfer films 4 and 4 are transferred. It is transferred to the peripheral surface of tubes A and A according to the picture of copy plate 47 and 47, It is attached.

[0031]   When the thermal transfer is completed, the hot platen units 2A and 2B are inverted and moved up. At the same time, the transfer films 4 and 4 are started to be fed and new unused film parts are removed. It is supplied below each of the heating plate units 2A and 2B, and next, a new tube is added. B, A is carried in, the heating platen units 2A, 2B are lowered again, and thermal transfer is performed, By repeating this operation, paintings of the tubes A to A are made one after another.

[0032]   At this time, in this embodiment, as described with reference to FIG. 6, two heating plate units 2A are provided. , 2B between the arrangement pitches of the jigs 23 to 23 in the conveying means. The distance P is reduced to 1/3 and the jigs 23 to 23 are fed in one thermal transfer cycle. Since the amount L is twice as large as the arrangement pitch interval P, that is, 2 pitch feeds, a To the point The tube A, which has been subjected to thermal transfer by the hot platen unit 2A on the upstream side, is It should be sent to point b at the start of copying, and to point c at the start of the next thermal transfer. Therefore, the thermal transfer operation of the downstream heating platen unit 2B may be duplicated. Absent. This is because the tube A that is thermally transferred by the hot platen unit 2B on the downstream side is upstream. Side heating plate unit 2A without receiving the thermal transfer operation by the heating plate unit 2A. Means to pass. Therefore, even if two hot platen units 2A and 2B are provided, The tubes A to A are not redundantly transferred by heat, and the two heating plate units 2A, 2 By B, painting can be performed on the two tubes A and A at the same time.

[0033]   Therefore, the thermal transfer time by each heating platen unit 2A, 2B should be good for the tube. Increase the number of paintings per unit time while ensuring the minimum time for good painting And satisfy both the requirements of securing an appropriate thermal transfer time and increasing the production amount. Can be added. The number of hot plate units used may be two or more.

[0034]   In addition, according to the present invention, the transfer speed of the transfer means 3 is set so that the thermal transfer is completed, The unit 2A, 2B is increased from the time when it starts to rise, and heat is generated for the next thermal transfer. Until the board units 2A and 2B descend and come into contact with the tubes A and A (that is, FIG. During the distance L2), the speed-up state is maintained, so the feeding time of tubes A, A Is shortened. Therefore, one thermal transfer cycle time is shortened and the thermal transfer operation interval is It will be shortened and the painting production will be further increased.

[0035]   By the way, as shown in FIG. 2, each of the conveying means 3 and the heating plate elevating means 25 is provided. The motor rotational force as the driving force is transmitted from the motor 8 via the clutch brake 11. It is configured to enter. This is a temporary thermal transfer device for some reason. When the operation of No. 1 is interrupted, the motor torque is cut by the clutch brake 11 to carry it. This is a configuration for preventing the input to the sending means 3 and the elevating means 25. But fast painting In order to perform the attachment, the lifting means 25 is used to lift the heating plate units 2A and 2B. Is set short. Further, the clutch brake 11 is activated to operate the cam shaft in FIG. When 26 is stopped, the hot platen units 2A and 2B are not always at the top dead center. The cam shaft 26 does not always stop. Therefore, when the operation is interrupted, the transfer film 4 , 4 remain in contact with, or very close to, the hot platen units 2A, 2B stop Situation occurs. In that case, the heating plate units 2A and 2B are heated to a high temperature. As a result, heat damage occurs on the transfer films 4 and 4.

[0036]   In the above-described embodiment, the heating plate units 2A and 2B are retracted in preparation for the thermal transfer interruption as described above. An evacuation mechanism is incorporated in the elevating means 25. That is, as described above, The air cylinder 44 is provided in the rack 32, and is used during normal thermal transfer operation. Is used by extending the cylinder 44 as shown in FIG. So clutch When the motor torque is cut by the rake 11, the air cylinder 4 is interlocked with this. 4 is extended. As a result, the cylinder attached to the air cylinder 44 is Since the mounting plate 40 is received by the cam plate 37 via the L-shaped link 36 as a reaction force. The lower plate 31 is pulled up, and the lifting block is left with the cylinder mounting plate 40 remaining. 32 rises. This state is shown in FIG. 5, and when the operation is interrupted, the heating plate units 2A, 2 Even if B is at the bottom dead center, the hot platen units 2A and 2B are arranged along with the tube A. Is lifted up by an amount h with respect to the jig 23 to make contact with the transfer films 4 and 4, Rui or proximity can be avoided.

[0037]

[Effect of device]

  As is clear from the above description, according to the first aspect of the present invention, a jig is used. When the hot platen is pressed against the transferred object that is conveyed while being supported by The transfer pattern formed on the transfer plate by rotating the transfer product in contact with the heating plate. The pattern is printed on the peripheral surface of the transfer target by the transfer film. In that case, transfer A plurality of transfer heating plates are provided in the object transfer direction, and these heating plates are transferred by the transfer means. Heat transfer operation is performed by simultaneously operating the transferred objects to be transferred at a time. Painting will be made on the same number of transferred objects as the board. Moreover, the transferred material is Since multiple thermal transfers are performed at the same time while being continuously conveyed, the The transferred material can be fed, and the time interval of the thermal transfer operation can be set short. Therefore each Even if the thermal transfer time on each heating plate is set to one that allows optimal painting, the unit time The number of paintings per unit increases, and high-speed painting of high-quality painting products and high-speed painting It will be possible.

[0038]   Further, according to the second aspect of the invention, the heating platen is lowered to perform thermal transfer on the transferred object. When the thermal transfer is completed and the heating platen rises while the Since the transfer speed of the transfer material is increased, the transfer speed of the transferred material is increased by the above-mentioned speed increase. Therefore, the thermal transfer time interval will be further shortened, and faster painting Processing becomes possible.

[Brief description of drawings]

FIG. 1 is a front view of a thermal transfer device.

FIG. 2 is a schematic configuration diagram of a thermal transfer device.

FIG. 3 is a plan view of a motor torque transmission path.

FIG. 4 is a side view of the heating plate unit lifting means.

FIG. 5 is a partially cutaway front view showing a retracted state of the hot platen unit.

FIG. 6 is an explanatory diagram of a thermal transfer operation.

FIG. 7 is a perspective view of a painted product.

[Explanation of symbols]

1 Thermal transfer device 2A, 2B hot plate unit 3 transportation means 4 Transfer film 5a, 5b film supply means 23 Jig 25 Hot plate lifting means A tube

Continued front page    (72) Creator Kazuya Sato             1-5-15 Higashi 1-chome, Ishizu-cho, Hadera, Sakai City, Osaka Prefecture             Vitas Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A transfer plate of a transfer film having a predetermined transfer pattern, wherein a transfer plate having a transfer plate attached thereto is pressed against an object to be transferred conveyed below the transfer plate via the transfer film. A thermal transfer device for transferring a transfer layer onto a surface of an object to be transferred according to the above pattern, wherein a plurality of heating plates are arranged in parallel in a conveyance direction of the object to be transferred, and the transfer is performed below the respective heating plates. A film supplying means for supplying a film, a conveying means for continuously conveying a jig for rotatably supporting the transferred object at a constant interval, and a plurality of heating plates for transferring the transferred object to a position directly below them. And a heating plate elevating means for raising the temperature after the thermal transfer, and the arrangement pitch of the jigs in the conveying means is such that the transfer target is thermally transferred only by one of a plurality of heating plates. Being heavy A thermal transfer device characterized in that it is supposed to pass through a hot platen without being double-transferred. 2. A transfer plate having a transfer pattern having a predetermined transfer pattern is pressed against a transfer object conveyed below the transfer plate through the transfer film to thereby transfer the transfer film. A thermal transfer device for transferring a transfer layer onto a surface of an object to be transferred according to the above pattern, wherein a plurality of heating plates are arranged in parallel in a conveyance direction of the object to be transferred, and the transfer is performed below the respective heating plates. A film supplying means for supplying a film, a conveying means for continuously conveying a jig for rotatably supporting the transferred object at a constant interval, and a plurality of heating plates for transferring the transferred object to a position directly below them. And a heating plate elevating means for raising the temperature after the thermal transfer, and the arrangement pitch of the jigs in the conveying means is such that the transfer target is thermally transferred only by one of a plurality of heating plates. Being heavy The thermal transfer device is characterized in that it passes through the hot platen without being double-transferred, and the transfer speed of the transfer means between the thermal transfer operations is higher than the transfer speed during the thermal transfer operation. .