JPH02292010A - Simultaneous molding transfer device - Google Patents

Abstract

PURPOSE:To easily correct the position of the graphic pattern of a transfer film by providing a projecting part for film feeding which is projectable from the mold clamping face of one mold to the part of the upstream side of a cavity forming part from which the transfer film is sent and providing a recessing part to the mold clamping face of the other mold. CONSTITUTION:In the case of performing simultaneous molding transfer, a graphic pattern 30a for transfer of the upstream side of a transfer film 30 is positioned in the prescribed positions of both the projecting part 26a of a fixed mold 21 and the recessing part 29a of a movable mold 22. When the transfer film 30 is lengthened and the interval between the graphic patterns 30a, 30b for transfer is widened, the graphic pattern 30b of the downstream side is positioned to the lower part from the projecting part 26b and the recessing part 29b. Therefore when mold opening is performed, a dial part 35 is rotated and a guide part 33 is projected from a parting face 21a. When the fixed mold 21 and the movable mold 22 are clamped, the transfer film 30 is fed into a recessing part 37 by both a guide part 33 and the opening edge part of the recessing part 37. The position of the graphic pattern 30b for transfer of the downstream side is corrected to the upper part. The clearance of the graphic patterns 30a, 30b for transfer is corrected so as to correspond to the clearance of the intervals of the recessed parts 26a, 26b and the projecting parts 29a, 29b.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention provides a simultaneous molding and transfer device capable of simultaneously molding a plurality of resin molded products and transferring designs, characters, etc. to the resin molded products. Regarding. (Prior Art) Conventionally, the small type shown in Fig. 2 is known as a four-way forming transfer device. This simultaneous molding transfer device has a protrusion 18 on the mold clamping surface of the fixed mold 1 so that a pair of upper and lower cavities is formed when the fixed mold 1 and the moving mold 11 are clamped together. .1a is formed, and the mold clamping surface of the movable mold 2 is formed with four parts 2a, 2a. The transfer film 3 that transfers the design to the molded product molded in the cavity is fixed+Lil+! When the movable mold 2 and the fixed mold 2 are opened, the molten plastic is supplied between the two, and when the movable mold 2 and the fixed mold 1 are clamped and molten plastic is filled into the cavity from the nozzle 4, the inside of the cavity is filled. The pattern 3a of the transfer film 3 is applied to the molded product. 3b is transferred to the molded product. The transfer film 3 is a feed roller of the film supply device 6 disposed on a part of the fixed platen 51 of the movable metal W2! 3a, 6b, and the guide rollers are disassembled, and the guide par 6d. It is supplied between the molds via 8e. [
i'j Film winding device i arranged on the top part of the surface plate 5
? It is wound onto a take-up coil 7e via a guide roller 7a, a dancer roller 7b, a presser roller 7c, and a take-off roller 7d. A film supply device I is installed on the guide rail 8a on the upper part of the fixed platen 5.
The frame 9 of f6 is slidably attached, and the fixed platen 5
The frame lO of the film scraping device 7 is slidably attached to the lower guide rail 8b, and the transfer film is removed so that each pattern 3a, 3b corresponds to the design of each molded product. Width IJ of the transfer film 3 when transferring the patterns 3a and 3b of 3 to two molded products
The position adjustment in the direction is performed by moving the film supply device 6 and film winding device 7 along guide rails 8a and 8b. In addition, the vertical position adjustment of the patterns 3a and 3b of the transfer film 3 is performed using the transfer film 3.
This is done by adjusting the supply of In addition, 11 is a movable mold compared to the fixed mold 1! S! ! A tie bar 12 is used to move the two parts closer together and separate from each other, and a frame 12 supports the fixed metal part 1. (Problem M to be solved by the invention) However, when transferring the patterns 3a and 3b to a molded product, the pattern 3a may expand and contract due to temperature changes, or may be distorted or partially stretched during transfer. , 3b, the longitudinal position of the transfer film 3 deviates from the predetermined position. Therefore, for example, the pattern 3a for the upper four parts 2a
If this is done, the pattern 3b will be located below the lower four parts 2a, making it difficult to transfer the patterns 3a and 3b to the predetermined positions of the molded product. Therefore, each time a pattern is transferred to a molded product, the positional deviation between the molded product and the patterns 2a, 2b is actually measured, and based on the measurement results, the placement position of the patterns 3a, 3b in the longitudinal direction of the transfer film 3 is corrected. , it is necessary to re-transfer the patterns 3a and 3b, and if it is necessary to transfer the transfer positions of the patterns 3a and 3b to the predetermined positions of the molded product with precise accuracy, the delivery time of the molded product may become longer,
The cost is 1. There was a challenge to climb the ranks. The present invention has been made to solve the problems described in item 2 and 1, and is a simultaneous molding transfer method that allows easy correction of the position of a pattern in the longitudinal direction of a transfer film when transferring it to a molded product. The purpose is to provide equipment. (Means for Solving the Problems) In order to achieve the second object, the simultaneous molding transfer device according to the present invention is provided with a mold clamping surface of one of a pair of molds, and 1) q. The cavity forming part where the film is sent out. A protrusion for film feeding that can protrude from the clamping surface of one of the molds is provided at the part on the flow side, and this protrusion for feeding the film is provided at the clamping surface of the other mold. It is characterized by having four parts to be inserted. (Function) According to the simultaneous molding transfer device according to the present invention, when a pair of molds is clamped with the protrusion protruding from the clamping surface of one mold, the cavity forming portion of the transfer film is closed. Since the part located on the downstream side is pushed into the recess of the other mold by the protrusion, the placement of the transfer design that should be located in the cavity forming part located downstream of the protrusion is corrected. (Example) Hereinafter, an example of the simultaneous molding and transfer apparatus of the present invention will be described based on the drawings. FIG. 1 shows a simultaneous molding and transferring device according to an embodiment of the present invention, in which 20 denotes a simultaneous molding and transferring device;
1 is a fixed mold, 22l is a movable mold, 23a and 23b are 1
This is a tie bar that allows the movable mold 22 to approach and separate from the fixed mold 21. The fixed mold 21 has a fixed platen 25 supported by a frame 24.
is installed on the fixed mold 21, and the barting member 21a of the fixed mold 21
(!S!! tightening surface) is provided with convex portions 26a and 26b (cavity forming portion) for forming a cavity.The convex portions 26a and 26b are provided with melted water from a nozzle 27 via a fixed platen 24. Plastic is supplied.The fixed platen 25 and the movable platen 28 are connected by a pair of tiepers 23a and 23b arranged under the L and on the left and right sides, respectively, and the movable metal plate 22 is fixed to the movable platen 28. The parting surface 22a of the movable mold 22 has recesses 29a and 29b as cavity forming parts.
1 convex portion 26a. 26b. The concave portions 29a, 29b and the convex portions 26a, 26b are fixed metal g.
2. A cavity is formed when the mold 1 and the movable mold 22 are clamped. On the parting surface 21a of the fixed mold 21, the fixed mold 2
1 and the movable mold 22
Projection 3 for correcting the position of the transfer patterns 30a, 30b
l and a recess 32 are provided. In this embodiment, the protrusions 3l are the protrusions 26a and 26b of the fixed mold 2l.
When the upper transfer pattern 30a is located at a predetermined position corresponding to the upper protrusion 26a, the lower transfer pattern 30b is placed at a predetermined position corresponding to the lower protrusion 26b. The position of the transfer pattern 30b is corrected in the vertical direction so that the transfer pattern 30b is positioned at , thereby adjusting the distance between the transfer patterns 30a and 30b. That is, in this embodiment, the cavity forming portion in which the position of the transfer pattern 30b is corrected refers to the convex portion 2[1b of the fixed mold 21 and the concave portion 29b of the movable mold 22]. The protruding portion 31 includes a round bar-shaped guide portion 33 that extends in the width direction of the transfer film 30 and has a length at least equal to the width of the transfer film 30, and a pair of brackets 34 that are attached to both side walls of the fixing metal fi21. .34, a nut dial part 35 supported by a pair of brackets 34 and 34, and threaded parts 36 attached to both ends of the guide part 33 and screwed into the dial part 35. The amount of protrusion of the guide portion 33 is adjusted by rotating it. Adjustment of the protrusion of the guide part 33 from the barting part 21a is performed using the dial part 3.
It is adjusted by the rotation operation in step 5. In this embodiment, the dial portion 35 is rotated manually, and the guide portion 35 is rotated manually.
The amount by which the transfer film 3o is fed is determined by reading the scale indicated by the feed amount display scale 35a displayed on the outer peripheral surface of the dial portion 35 with respect to the reference scale 34& of the pair of brackets 34, 34. Dial part 35
Feed amount display [1 fill 35a makes the guide part 33 protrude from the parting surface 21a, and uses the test transfer film 3o to position the transfer pattern 30b at a predetermined position corresponding to the convex part 26b and fix it. Mold 21 and movable mold 2
2 is clamped, and the amount of displacement of the transfer pattern 30b at this time is set in correspondence with the amount of feed of the guide portion 33. The rotation reference 11 height 34a is adjustable in the direction of rotation of the dial portion 35, and is set as a reference value when the protrusion 31 contacts the transfer film 3o in a non-pressed state. Note that when the dial portion 35 is rotated using a stepping motor and a gear mechanism, the amount of rotation of the stepping motor, the pitch and gear ratio of the threaded portion 36, and the transfer film 30 when fed into the four portions 29b are controlled. The amount of feed of the guide section 33 can be calculated based on the elongation plate, etc. Further, the drive I stage of the guide portion 33 is not limited to this configuration, and for example, the hydraulic pressure 5A2? Alternatively, the protrusion 31 may be directly driven by. The recess 32 fixes the protrusion 31 with the mold 2.
It is placed inside the fixed mold 21 from the bartering member 21a of 1, and the transfer pattern 30a of the transfer film 30 is placed inside the fixed mold 21.
, 30b are the convex portions 26a. 26b, so that the protrusion 31 waits in the recess 32.
It extends in the width direction of the transfer film 30. The parting machine 22a of the movable mold 22 has 1q movable mold 2.
A recess 37 extending in the width direction of 2 is formed, and the guide portion 33 with the transfer film 30 locked therein can enter into the recess 37 during mold clamping. The transfer film 30j is fed out from the film feeding device 40 provided at the top of the movable die 22 and is wound up by the film winding device 50 provided at the bottom of the movable iSa 2B. Transfer film 3
0 is at least the recesses 29a and 29 of the movable mold 22
A transfer pattern 30a having a width larger than the width b and having a spacing approximately equal to the spacing between the recesses 29a and 29b;
30b is attached. The distance between the transfer patterns 30a and 30b is determined by the elongation of the transfer film 30 due to heating, the partial contraction of the transfer film 30 due to transfer, and the fixed metal M:! 21 and recesses 29a, 2 during molding of the movable mold 22
Taking into account the spacing between the four parts 29a and 29b, the transfer pattern 30a is set at least equal to the spacing between the four parts 29a and 29b at the time of starting transfer, and the transfer pattern 30a is placed at a predetermined position within the four parts 29a and 29b at the start of transfer.
, 30b shall be positioned accurately. The film feeding device 40 includes a support device (not shown) that supports a film roll around which the transfer film 30 is wound, and a sliding plate that slidably fits into a guide rail 36 fixed to the upper part of the movable platen 28. 41, a frame 42 fixed to the tank moving plate 4l, supply rollers 43, 43 fixed to the frame 42, a guide roller 44 attached to the frame 42, and guide bars 46, 45 also attached to the frame 42. It is composed of. The guide rail 36 and the sliding plate 4l extend in a direction orthogonal to the tieper 23a so that the transfer film 30 can be moved and adjusted in the width direction, and the guide rail 36 and li! A screw member 37 for adjusting the movement ffi is provided between the I moving plate 41 and the I moving plate 41. The supply rollers 43, 43 function as one of the driving sources for feeding out the transfer film 30 from the film roll. The guide roller 44 and the guide bar 45.45 are
Between the pair of typers 23a and 23b, the movable mold 2
A transfer film 30 is guided between the mold 2 and the fixed mold 2l, and the supply of the transfer film 30 is stabilized. The film winding device rI150 at the lower part of the movable platen 2B is attached to the guide rail 38 at the lower part of the movable platen 28. The guide rail 38 extends in a direction perpendicular to the pair of tiepers 23a and 23b. The film winding device lf50 is
A sliding plate 51 that fits into the guide rail 38 so as to be able to slide but not fall, a frame 52 that is attached to the sliding plate 5l, a winding coil support section 53 that is attached to the frame 52, and a transfer coil that is attached to the frame 52. film 30
A slack removing hole 54 that takes up the slack, and a slack removing hole 5
4, a presser roller 55 that urges the transfer film 30, a dancer roller 56 that adjusts the tension of the transfer film 30 to a constant level, an idle roller 57 that guides the transfer film 30 to the dancer roller 56, a dancer roller 56, and a guide roller. 57, and a support frame 58 that supports the frame 57.

A screw member 39 for J4tl that displaces the sliding plate 5l in the width direction of the transfer film 30 is screwed between the guide rail 3B and the sliding plate 5l. The support frame 58 includes
A long hole 5 extending obliquely upward and supporting the dancer roller 56
9 is opened, and the dancer roller 56 transfers the transfer film 30
is elastically biased in the direction of constant pressure. Film feeding device ia! 40 feeding rollers 41, 41
The slack removing roller 54, presser roller 55, and winding coil support section 53 of the film winding device 50 are driven by a film moving device (not shown) that moves the transfer film 30 in the longitudinal direction. When the mold is clamped, the transfer film 30 is stopped and the displacement of the transfer film 30 in the longitudinal force direction is restricted. The simultaneous forming and transferring apparatus according to this embodiment is provided with a longitudinal direction sensor and a width direction sensor (not shown) in addition to those described above. The longitudinal force direction sensor detects the longitudinal force direction detection mark printed on the transfer film 30, stops the film feeding device 40 and the film winding device fai50, and detects the longitudinal direction of the transfer pattern 30a located above the recess 37. Performs positioning in the force direction. Further, the width direction sensor detects the width direction detection mark printed on the transfer film 30, and rotates the screw members 37, 39 to position the sliding plates 41, 51 in the width direction of the transfer film 30.

In the simultaneous forming transfer device according to the embodiment, when performing simultaneous forming transfer, the longitudinal force direction sensor is used to control the transfer film 30.
Film feeding device ii! while detecting the supply status of the film! 40
and the film winding device 50 to position the transfer pattern 30a on the upstream side of the transfer film 30 at a predetermined position between the convex portion 26a of the fixed mold 2l and the four parts 29a of the movable mold 22. When the transfer film 30 is extended during simultaneous molding and transfer and the distance between the transfer patterns 30a and 30b becomes wider, the transfer pattern 30b on the downstream side is located below the predetermined position of the convex part 26b and the concave part 29b, so that the mold When opening, rotate the dial part 35 to move the guide part 33 to the parting surface 21a.
In this state, the fixed mold 21 and the movable mold 2
2 is clamped, the transfer film 30 is attached to the guide portion 33.
and the opening edge of the recess 37 of the movable mold 22, the recess 3
7, the position of the transfer pattern 30b on the downstream side is corrected upward, and the interval M between the transfer patterns 30a, 30b is adjusted to the concave portion 26a. 26b and the spacing between the protrusions 29a and 29b. This transfer film 3
The amount by which 0 is sent out can be read from the scale 35a of the dial part 35, so if the transfer pattern 30b on the downstream side is misaligned, the amount of the misalignment can be measured and corrected each time the dial part 35 is rotated. The position of the transfer pattern 30b can be corrected.

When the transfer film 30 is sent out into the four parts 3'7 during mold clamping, the dancer roller 56 is displaced within the elongated hole 58, so that the tension of the transfer film 30 is kept constant. Incidentally, in the mold of this embodiment, the protrusion 3l, the recess 32, and the recess 37 are provided in the mold for taking two molded products, but the present invention is not limited to this. When providing a cavity forming part, it is sufficient to provide a protrusion 3l, a recess 37, and a recess 37 between the cavity forming parts. Further, in this embodiment, the protrusion 3l and the recess 32 are provided on the fixed mold 21 side, and the recess 37 is provided on the movable mold 22 side, but the movable mold 2
The protrusion 31 and the recess 32 may be provided on the 2 side, and the recess 37 may be provided on the fixed mold 2l side. Furthermore, even if there is only one cavity forming part, there is a protrusion 3 on the upper waterfall side of the cavity forming part.
1, the recessed part 32, and the recessed part 37, it is possible to adjust the position in the longitudinal direction of the transfer film of the transfer pattern disposed in this one cavity forming part. (Effects of the Invention) Since the simultaneous molding transfer device according to the present invention is configured as described above, as a result of the extension of the transfer film, the position at the time of transfer of the pattern for transfer to be located in the cavity forming portion on the lower side of the protrusion. However, if the transfer film is misaligned in the longitudinal direction, by making the protrusion of one trapezoid protrude a predetermined amount from the recess of the other mold, the position of the transfer pattern at the time of transfer can be adjusted to the predetermined position of the cavity forming part. can be easily matched.

[Brief explanation of drawings]

Figure 1 is a schematic configuration diagram of a simultaneous molding and transfer device according to an embodiment of the present invention, and Figure 2 is a conventional simultaneous molding and transferring device! ! This is a schematic configuration diagram of I. 2l... Fixed mold 22... Movable mold 26b... Convex part, 29b... Concave part (downstream side cavity forming part) 30... Transfer film 30a... Transfer pattern 30b...・Transfer design (design to correct position) 3l...
- Projection part 32...Four parts 33...Guide part 34...Pair of brackets 35...Dial part 36...Screw part 40...Film feeding device 50...Film winding device

Claims (1)

[Claims] When a transfer film sent from a supply device to a winding device is supplied between the cavity forming portions of a pair of opened molds, and the pair of molds are clamped to form a molded product. In the simultaneous molding transfer device that transfers the transfer pattern of the transfer film onto the surface of the molded product, a cavity forming portion that is a mold clamping surface of one of the pair of molds and from which the transfer film is fed out. A film feeding protrusion that can protrude from the mold clamping surface of one of the molds is provided at the upstream side of the mold, and the film feeding protrusion is inserted into the mold clamping surface of the other mold. A simultaneous molding transfer device characterized by being provided with a recessed portion.