WO2006019088A1

WO2006019088A1 - Concurrent molding/printing system and production method for transfer printing molded product

Info

Publication number: WO2006019088A1
Application number: PCT/JP2005/014934
Authority: WO
Inventors: Tsuyoshi Kusanagi
Original assignee: Solana Techno Corporation
Priority date: 2004-08-19
Filing date: 2005-08-16
Publication date: 2006-02-23
Also published as: JP4379874B2; KR20070053263A; TW200530012A; JP2006056106A; CN101005934A; KR100843431B1; CN101005934B; TWI250071B

Abstract

[PROBLEMS] A concurrent molding/printing system capable of effectively eliminating the possibilities of defective molding and defective transferring caused by resin flowing onto the surface opposite to the transfer portion side of a transfer printing foil, and a production method for a transfer printing molded product. [MEANS OF SOLVING PROBLEMS] A concurrent molding/printing system for injecting resin into a clamped mold and concurrently carrying out molding and transfer-printing on the surface of the molded product, comprising an injection molding machine, a mold mounted to the injection molding machine, a transfer printing foil on which a plurality of transfer portions are printed, and a foil feeding means having a foil feeding-out mechanism for sequentially feeding the transfer portions of the transfer printing foil into the mold and a foil take-up mechanism for taking up a transferred transfer printing foil from the mold, characterized in that at least one of the movable platen and the fixed platen of the mold is provided with a block for bending at least one end in the width direction of a transfer printing foil toward the parting surface of the mold and holding it between the block and the movable platen or the fixed platen when the mold is clamped.

Description

Specification

Simultaneous molding printing system and method for producing transfer printing molded product

Technical field

TECHNICAL FIELD [0001] The present invention relates to a simultaneous molding printing system that simultaneously performs molding and transfer printing on the surface of a molded product in a mold, and a method for manufacturing a transfer printed molded product. The present invention relates to a simultaneous molding printing system and a transfer printing molded product manufacturing method suitable for manufacturing a transferred printing molded product.

Background art

Conventionally, as a simultaneous molding printing system that performs transfer printing on both sides of a molded product simultaneously with molding, a system as shown in FIG. 4 is known (for example, Patent Document 1). In FIG. 4, 100 indicates a mold. The mold 100 is attached to an injection molding machine (not shown), and includes a fixed mold 101 and a movable mold 102. The fixed mold 101 and the movable mold 102 are formed with cavities 103 and 104 for molding the product portion. In the fixed mold 101, an abutting portion 105 and a runner 106 with which the tip of the injection nozzle of the molding machine abuts are provided. Reference numeral 107 denotes a foil feeding means for a transfer printing foil described later. The foil feeding means 107 has a supply reel 108 provided above the molding machine and a take-up reel 109 provided below the molding machine 2. In FIG. 4, the foil feeding means 107 is arranged on the movable mold 102 side. The transfer printing foil 111 drawn from the supply reel 108 by the rotation of the pair of drawing rollers 110 passes between the fixed mold 101 and the movable mold 102, and the take-up reel 109 by the rotation of the pair of drawing rollers 112. I'm starting to get beaten up. In the system of FIG. 4, a foil feed mechanism 113 is configured by the supply reel 108 and the pair of drawing rollers 110, and a foil scraping mechanism 114 is configured by the take-up reel 109 and the pair of take-up rollers 112. ing.

A transfer portion 115 is provided on one surface 120 of the transfer printing foil 111. A plurality of transfer portions 115 are arranged in the longitudinal direction of the transfer printing foil 111 at a predetermined interval. As shown in FIG. 4, the transfer printing foil 111 is sent from the upper side to the lower side of the molding machine.

[0004] In the foil feeding means 107, the foil feeding mechanism 113 and the foil winding mechanism 114 are driven simultaneously. As a result, the transfer printing foil 111 is sent out in a fixed amount, and the transfer portion 105 of the transfer printing foil 111 is aligned with the cavity 104 of the movable mold 102. The positioning of the transfer unit 105 to the cavity 104 is performed accurately by, for example, image processing using a CCD camera.

[0005] In the simultaneous molding and printing system as described above, a foil feeding means 116 having substantially the same configuration as the foil feeding means 107 is also provided on the fixed mold 101 side. Then, the transfer section 118 on the one surface 121 of the transfer printing foil 117 is accurately aligned with the cavity 103 of the movable mold 101 by driving the foil feeding means 116.

In such a simultaneous molding and printing system, the transfer units 115 and 118 are aligned with the cavities 103 and 104 by driving the foil feeding unit 107 and the foil feeding unit 116. In this state, the movable mold 102 moves in the direction of the arrow in FIG. Further, in the injection molding machine, the resin is filled in the spaces formed in the cavities 103 and 104, and the molded product 119 is molded. At the same time, the design of the transfer portions 115 and 118 is transferred to both surfaces of the molded product 119 by the heat on the molded product 119 side immediately after molding.

However, in the simultaneous molding and printing system as described above, when the mold 100 is clamped, both end portions in the width direction of the respective transfer printing foils 111 and 117 are divided surfaces 124 ( Therefore, the injected grease may flow from the end in the width direction of the transfer printing foils 111 and 117 to the surfaces 122 and 123 on the side opposite to the transfer portion. If such an infusion of resin occurs, there is a risk of causing molding defects and transfer defects.

Patent Document 1: Japanese Patent Application Laid-Open No. 2004-074476

Disclosure of the invention

Problems to be solved by the invention

[0008] Therefore, the problem of the present invention is to pay attention to the problems in the system as described above, and to prevent molding defects and transfer defects due to the inflow of grease to the surface on the side opposite to the transfer portion of the transfer printing foil. It is an object of the present invention to provide a simultaneous molding printing system and a method for producing a transfer printing molded product that can be surely eliminated.

Means for solving the problem

In order to solve the above problems, a simultaneous molding printing system according to the present invention is an injection molding machine. A mold attached to the injection molding machine, a transfer printing foil in which a plurality of transfer portions are printed at predetermined intervals in the longitudinal direction, and a transfer portion of the transfer printing foil in the mold in sequence. Foil feeding mechanism that has a foil feeding mechanism that feeds out and a foil feeding mechanism that winds up the transferred transfer printing foil from inside the mold, and injects the grease into the mold that has been clamped for molding And a simultaneous printing system that performs transfer printing on the surface of the molded product at the same time, at least one of the movable mold and the fixed mold of the mold, and the width direction of the foil for transfer printing when the mold is clamped A block body is provided in which at least one end portion of the mold is bent with respect to the dividing surface of the mold and sandwiched between the movable mold or the fixed mold, and when the mold is opened, the block body is anti-fixed mold side or anti-movable. Features a spring that urges the mold Also it is made of the force. In such a configuration, when the mold is clamped, the block body is pushed back to the fixed mold side or the movable mold side against the biasing force of the spring, so that the end in the width direction of the transfer printing foil is securely clamped. Is done. Therefore, when the mold is clamped, the end portion in the width direction of the transfer printing foil is sandwiched by a surface different from the dividing surface of the mold, so that the side of the transfer printing foil on the side opposite to the transfer portion at the time of injection The inflow of grease to the surface is reliably prevented. Further, when the mold is opened, the block body is moved by the biasing force of the spring, and a gap is formed between the fixed mold and the movable mold. Can be inserted into.

[0010] Further, the block body is configured to be movable in a simple structure using the opening and closing of the mold and the biasing force of the spring, and for example, it is not necessary to provide special drive means such as an air cylinder. Therefore, it is possible to prevent the mold and the entire system from becoming complicated and large, and further cost increase.

[0011] A runner can be formed on the block body.

[0012] The block body preferably forms a part of the dividing surface of the mold.

[0013] In the simultaneous molding and printing system according to the present invention, a plurality of foil feeding means, for example, two foil feeding means can be provided. If a plurality of foil feeding means are provided, it is possible to simultaneously transfer and print on both sides of the molded product. Moreover, in such an aspect, the foil feeding directions of the foil feeding means can be set to different directions. For example, two foil feeding means In the arrangement mode, when the foil feeding direction of one foil feeding means is set in the vertical direction of the molding machine, the foil feeding direction of the other foil feeding means can be set in the width direction of the molding machine.

[0014] Further, in order to solve the above-mentioned problems, a method for producing a transfer printed molded product according to the present invention includes an injection molding machine, a mold attached to the injection molding machine, and a transfer portion having a predetermined length in the longitudinal direction. A plurality of transfer printing foils that are printed at intervals, a foil feeding mechanism for sequentially transferring the transfer printing foil transfer portion into the mold, and the transferred transfer printing foil from the mold. A foil feeding means having a foil winding mechanism for winding, and injecting the resin into the mold that has been clamped to simultaneously perform molding and transfer printing on the surface of the molded product. When the mold is manufactured, a block body is provided on at least one of the movable mold and the fixed mold of the mold, and at least one end in the width direction of the transfer printing foil is used as a dividing surface of the mold when the mold is clamped. When bent against the block body and movable or fixed mold To become methods force you urged by a spring to block body opposite to the fixed mold side or counter movable mold side during mold opening of the mold.

The invention's effect

[0015] According to the simultaneous molding printing system and the method for manufacturing a transfer printing molded product according to the present invention, the end in the width direction of the foil for transfer printing using the block body is set to a surface different from the divided surface of the mold. The block body can be easily urged in the desired direction with a simple structure using a spring for the operation, so that the reverse of the transfer printing foil at the time of injection onto the surface on the copy section side The inflow of the resin can be reliably prevented, and the occurrence of molding defects and transfer defects due to the inflow of the resin can be effectively prevented.

Brief Description of Drawings

FIG. 1 is a schematic configuration diagram of a simultaneous molding printing system according to an embodiment of the present invention.

[Fig. 2] II II view of the simultaneous molding printing system of Fig. 1.

3 is an enlarged cross-sectional view of the vicinity of the dividing surface of the mold of the simultaneous molding and printing system of FIG.

FIG. 4 is a schematic configuration diagram of a conventional simultaneous molding printing system.

Explanation of symbols

[0017] 1 Molding simultaneous printing system

2 Injection molding machine Mold

, 5 foil feeding means

Fixed type

Movable type

, 9 Cavity

0 Fixed plate

1 Molding machine nozzle abutment

2 Injection nozzle

Injection stand

5 base

6 Movable side plate

7, 26 Supply reel

8, 27

9, 28 — Pairs of drawer rollers

, 29 Transfer printing foil

1, 30 Take-up roller

31 Foil feeding mechanism

32 Foil scraping mechanism

33 One side of foil for transfer printing

, 34 Transfer printing foil transfer block Block body

Mold split surface

Runner

Gate

40 springs

Gap formed between fixed mold and block body Edge of transfer printing foil in width direction Transfer printing molded product 44 Anti-transfer area side of transfer printing foil

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the simultaneous molding and printing system of the present invention will be described with reference to the drawings.

1 to 3 show a simultaneous molding printing system according to an embodiment of the present invention. The simultaneous molding and printing system 1 includes an injection molding machine 2, a mold 3 attached to the molding machine 2, and foil feeding means 4 and 5.

The mold 3 is composed of a fixed mold 6 and a movable mold 7 that are divided by a dividing surface 36 described later. The fixed mold 6 and the movable mold 7 are formed with cavities 8 and 9 for molding the product part. The fixed mold 6 is fixed to the fixed side plate 10 of the molding machine 2. In the fixed mold 6, there is provided an abutting portion 11 with which the tip of the injection nozzle 12 of the molding machine 2 abuts. The injection nozzle 12, together with the injection table 14, is configured to be movable in the direction of the arrow in FIG.

[0020] The movable mold 7 is fixed to the movable plate 16 of the molding machine 2, and the mold 3 is clamped and opened by moving together with the movable plate 16 in the direction of the arrow in FIG. It has come to be.

The simultaneous molding and printing system 1 according to this embodiment includes two foil feeding units 4 and 5. The foil feeding means 4 has a supply reel 17 provided above the molding machine 2 and a take-up reel 18 provided below the molding machine 2. In FIG. 1, the foil feeding means 4 is arranged on the movable mold 7 side. The transfer printing foil 20 drawn from the supply reel 17 by the pair of drawing rollers 19 passes between the fixed mold 6 and the movable mold 7, and is wound around the take-up reel 18 by the pair of take-up rollers 21. It is becoming. In this embodiment, a foil feeding mechanism 22 is configured by the supply reel 17 and the pair of drawing rollers 19, and a foil winding mechanism 23 is configured by the winding reel 18 and the drawing roller 21. In this way, the transfer printing foil 20 is sent from the upper side to the lower side of the molding machine 2 as shown in FIG.

A transfer portion 25 is provided on one surface 24 of the transfer printing foil 20. A plurality of transfer portions 25 are arranged in the longitudinal direction of the transfer printing foil 20 at a predetermined interval.

[0023] In the foil feeding means 4, the foil feeding mechanism 22 and the foil scraping mechanism 23 are driven simultaneously. As a result, the transfer printing foil 20 is sent out in a fixed amount, and the transfer portion 25 of the transfer printing foil 20 is aligned with the cavity 9 of the movable mold 7. The alignment of the transfer section 25 to the cavity 9 is accurately performed by image processing using a CCD camera, for example.

The foil feeding means 5 has supply reels 26 and take-up reels 27 provided on both sides of the molding machine 2 in the width direction (vertical direction in FIG. 2). In FIG. 2, the foil feeding means 5 is arranged on the fixed mold 6 side. The transfer printing foil 29 drawn from the supply reel 26 by the pair of drawing rollers 28 passes between the fixed mold 6 and the movable mold 7, and is wound around the take-up reel 27 by the pair of take-up rollers 30. It is becoming. In the present embodiment, a foil feeding mechanism 31 is configured by the supply reel 26 and the pair of drawing rollers 28, and a foil winding mechanism 32 is configured by the winding reel 27 and the drawing roller 30. In this way, the transfer printing foil 29 is fed in the width direction of the molding machine 2 as shown in FIG.

A transfer portion 34 is provided on one surface 33 of the transfer printing foil 29. A plurality of transfer sections 34 are arranged in the longitudinal direction of the transfer printing foil 29 at a predetermined interval.

[0026] In the foil feeding means 5 as well, the foil feeding mechanism 31 and the foil scraping mechanism 32 are simultaneously driven, whereby the transfer printing foil 29 is sent out in a fixed amount, and the transfer portion of the transfer printing foil 29 is transferred. 34 is now aligned with movable type 6 cavity 8. Note that the alignment of the transfer section 34 to the cavity 8 is performed accurately by, for example, image processing using a CCD camera.

In the present embodiment, the fixed mold 6 is formed by bending one end of the transfer printing foil 29 in the width direction with respect to the dividing surface 36 of the mold 3 when the mold 3 is clamped. A block body 35 is provided between the two. The block body 35 is provided with a runner 37 that forms a flow path for the injection resin, and the resin that has passed through the runner 37 is transferred from the gate 38 formed on the dividing surface 36 of the mold 3 to the cavities 8 and 9. Injected into the space formed by

The block body 35 is connected to the fixed mold 6 via springs 39 and 40. The block body 35 is urged in a direction away from the fixed mold 6 by springs 39 and 40. Therefore, a gap 41 is formed between the block body 35 and the fixed mold 6 in the mold open state. Therefore, the end 42 in the width direction of the transfer printing foil 29 can be easily inserted into the gap 41. Further, at the time of mold clamping, the block body 35 is pushed back to the fixed mold side against the urging force of the springs 39 and 40, so that the gap 41 disappears and the end portion 42 in the width direction of the transfer printing foil 29 is clamped. Is done. In the present embodiment, the block body 35 forms a part of the dividing surface 36 of the mold 3.

[0029] Using the simultaneous molding and printing system 1 as in the present embodiment, the method for producing a transfer printed product according to the present invention is performed as follows. By driving the foil feeding means 4 and the foil feeding means 5, the transfer portions 25 and 34 are aligned with the cavities 9 and 8. In this state, the movable mold 7 is clamped. Further, the resin is injected from the injection molding machine 2 and filled into the space formed by the cavities 8 and 9, and a molded product is molded. At the same time, the pattern on the transfer parts 25 and 34 is transferred to both surfaces of the molded product by the heat of the molded product immediately after molding, and the transfer printing molded product 43 is manufactured.

In such a method, when the mold 3 is clamped, the block body 35 and the fixed mold are bent so that the end 42 in the width direction of the transfer printing foil 29 is bent with respect to the dividing surface 36 of the mold 3. 6 between. That is, the end 42 in the width direction of the transfer printing foil 29 is sandwiched by a surface different from the dividing surface 36 of the mold 3, so that Inflow of resin to surface 44 is reliably prevented. Therefore, the occurrence of molding defects and transfer defects is effectively suppressed.

[0031] The block body 35 is configured to be movable in a simple structure using the opening and closing of the mold 3 and the urging force of the springs 39 and 40, and a special drive means (for example, an air cylinder) is provided. There is no need to provide it. Therefore, it is possible to prevent the mold, and thus the overall system complexity, size and cost.

Industrial applicability

[0032] The simultaneous molding printing system and transfer printing molded product manufacturing method according to the present invention can be widely used, for example, in the manufacture of transfer printing molded products in which characters, designs, etc. are transferred and printed on the surface of the molded product. it can.

Claims

The scope of the claims

[1] An injection molding machine, a mold attached to the injection molding machine, a transfer printing foil in which a plurality of transfer portions are printed at predetermined intervals in the longitudinal direction, and a transfer portion of the transfer printing foil A foil feeding mechanism having a foil feeding mechanism that sequentially feeds into the mold and a foil scraping mechanism that scrapes the transferred transfer printing foil from the mold, and the mold is clamped. In a simultaneous molding printing system that ejects a resin and simultaneously performs molding and transfer printing on the surface of the molded product, it is transferred to at least one of the movable mold and the stationary mold of the mold when the mold is clamped. A block body is provided that bends at least one end in the width direction of the copy-printing foil with respect to the dividing surface of the mold and is sandwiched between the movable mold or the fixed mold, and the block body is opened when the mold is opened. Provide a spring that biases the anti-fixed type or anti-movable type side Molding simultaneous printing systems that feature that.

[2] The simultaneous molding and printing system according to claim 1, wherein a runner is formed on the block body.

[3] The simultaneous molding and printing system according to claim 1, wherein the block body forms a part of a dividing surface of the mold.

[4] The simultaneous molding and printing system according to claim 1, wherein the simultaneous molding and printing system is provided with a plurality of foil feeding means, and transfer printing can be performed on both surfaces of the molded product.

5. The simultaneous forming and printing system according to claim 4, wherein the foil feeding directions of the plurality of foil feeding means are different from each other.

[6] An injection molding machine, a mold attached to the injection molding machine, a transfer printing foil in which a plurality of transfer portions are printed at predetermined intervals in the longitudinal direction, and a transfer portion of the transfer printing foil. A foil feeding mechanism having a foil feeding mechanism that sequentially feeds into the mold and a foil scraping mechanism that scrapes the transferred transfer printing foil from the mold, and the mold is clamped. When producing a transfer-printed molded product by spraying the resin and simultaneously performing molding and transfer printing on the surface of the molded product, a block body is provided on at least one of the movable mold and the fixed mold of the mold, At the time of mold clamping, at least one end in the width direction of the transfer printing foil is bent with respect to the dividing surface of the mold and sandwiched between the block body and the movable mold or the fixed mold, and the mold opening of the mold is performed. Sometimes the block body springs to the anti-fixed or anti-movable side Method for producing a transfer printing molded article characterized by biasing to Rukoto.