JP3146588U - Inkjet printing device - Google Patents

Abstract

An object of the present invention is to provide an ink jet printing apparatus in which both ends of a fabric are reliably adhered to the endless belt even if the pressure applied when the fabric is adhered to the endless belt is weakened.
An inkjet printing apparatus 1 for printing a fabric C, the endless belt 2 having an adhesive surface to which the fabric C is attached, and the fabric C is attached to the endless belt 2 by pressurizing the entire width direction of the fabric C. The entire affixing roller 4 is provided with both ends affixing rollers 5 that pressurize both ends in the width direction of the fabric C and affix both ends in the width direction of the fabric C to the endless belt 2.
[Selection] Figure 1

Description

  The present invention relates to an ink jet printing apparatus for printing an object to be printed.

Conventionally, screen printing apparatuses, roller printing apparatuses, and the like have been widely used as apparatuses for printing on fabrics such as cotton, silk, and polyester. However, these printing apparatuses need to prepare a screen frame, engraving roller, etc. for each pattern, but the screen frame and engraving roller are expensive, so they cannot be economically costly unless they are mass-produced. There was a problem. On the other hand, the ink jet textile printing apparatus can cope with the change of the design only by changing the digital data, and thus has an advantage that it is suitable for the production of a small variety of products, and has been widely used in recent years. In this inkjet printing apparatus, for example, as shown in FIG. 1 of Patent Document 1, conveyance rollers are installed on the upstream side and the downstream side, and a conveyance belt for conveying a fabric is wound around these conveyance rollers. Yes. The fabric conveyed by the conveyor belt is printed by the printer unit. In order to ensure the flatness of the fabric during printing, an adhesive layer is formed on the surface of the conveyor belt, and the fabric is conveyed to the conveyor belt using a sticking roller. It is pasted on top. When the fabric that has undergone printing is conveyed to the conveyance roller on the downstream side, the fabric is wound around the winding roller via the feed roller and the intermediate roller.
JP 2004-169248 A

  By the way, when printing a thin fabric or a knit fabric as a material to be printed, if the pressure applied when these fabrics are affixed to the endless belt is increased, the fabric is removed when the printed fabric is peeled off from the endless belt and wound up. Since there is a problem that the yarn is stretched or the yarn is bent, it is necessary to set the pressure of the sticking roller to a low value. However, when the fabric is affixed to the endless belt with such a weak force, there is a problem that both ends of the fabric are poor and the both ends of the fabric are floated without being bonded to the endless belt. In addition, when both ends of the fabric are lifted in this way, both ends of the fabric may come into contact with the ink jet nozzle to cause smearing or damage to the ink jet nozzle.

  Accordingly, an object of the present invention is to provide an ink jet printing apparatus in which both ends of a printed material are securely bonded to the endless belt even if the pressure applied when the printed material is bonded to the endless belt is weakened.

  An inkjet printing apparatus according to the present invention has been made to solve the above-described problem, and is an inkjet printing apparatus for printing a printed material, which has an adhesive surface to which the printed material is attached. An endless belt for conveying, an entire sticking means for applying pressure to the entire width direction of the printed material and attaching the printed material to the endless belt, and applying pressure only to both ends in the width direction of the printed material Both end portion attaching means for attaching both end portions in the width direction to the endless belt.

  According to this configuration, even when the pressure applied when the fabric C is stuck to the endless belt by the whole sticking means is low, the both-end sticking means pressurizes only both ends in the width direction of the article to be printed. Since both ends in the width direction of the object are attached to the endless belt as an auxiliary, the problem that both ends of the fabric C are separated from the endless belt and floated can be solved.

  The inkjet printing apparatus can take various configurations. For example, the both-ends pasting means are rotatably installed on both ends in the width direction of the printed material, and the printed material is attached to the endless belt by its own weight. It is preferable that it is a both-ends sticking roller to press.

  The said both-ends sticking roller can have a steel roller main-body part installed rotatably.

  The ink jet textile printing apparatus further includes a ferromagnetic material installed so as to face the both end application roller via the article to be printed, and the both end application roller is a permanent magnet roller installed rotatably. It can comprise so that it may have a main-body part. In this way, the roller body portion is made of a permanent magnet and further provided with a ferromagnetic material via an endless belt, so that the both-end sticking roller presses the fabric against the endless belt not only by its own weight but also by the magnetic force. Thus, the fabric can be attached to the endless belt. In addition, although the ferromagnetic material is installed so as to face the both-ends sticking roller through the printed material, for example, the ferromagnetic material may be installed through the printed material and the endless belt, Alternatively, the endless belt may be made of a ferromagnetic material.

  The roller body made of the permanent magnet is preferably replaceable. As a result, if you want to attach the end of the fabric to the endless belt with a stronger force, replace it with a roller body using a magnet with stronger magnetic force, and conversely, if you want to apply it to the endless belt with a weaker force, It can be replaced with a roller body using a magnet having a weak magnetic force.

  The ink jet textile printing apparatus may further include a ferromagnetic body installed so as to face both end application rollers via an endless belt, and the both end application rollers may have an electromagnet. By constituting in this way, the both-ends sticking roller can press the cloth C against the endless belt not only by its own weight but also by magnetic force so that the cloth can be stuck to the endless belt. In addition, since the magnetic force of the electromagnet can be adjusted by adjusting the strength of the current, for example, when you want to press the fabric against the endless belt with a stronger force, you want to increase the current and vice versa. Sometimes, it is possible to adjust the pressing force for pressing the fabric against the endless belt, for example, by reducing the current. In addition, the ferromagnetic material is installed so as to face the both-ends sticking roller through the printed material, but for example, the ferromagnetic material may be installed through the printed material and the endless belt, Alternatively, the endless belt may be made of a ferromagnetic material.

  Moreover, it is preferable that the said both-ends sticking roller has a rubber layer in an outer peripheral surface. Thereby, the cloth C can be pressed to the endless belt 2 side with a uniform force without damaging the cloth C.

  Moreover, it is preferable that the said whole sticking means is the whole sticking roller installed so that rotation was possible so that the whole to-be-printed object might be pressed on an endless belt with dead weight.

  According to the present invention, it is possible to provide an ink jet printing apparatus in which both end portions of a printed material are reliably bonded to the endless belt even if the pressure applied when the printed material is bonded to the endless belt is weakened.

  Hereinafter, an embodiment of an ink jet textile printing apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view showing the entire inkjet printing apparatus according to the present embodiment, FIG. 2 is a perspective view showing details of both end application means of the ink jet printing apparatus, and FIG. 3 is a front view showing details of both end application means. It is sectional drawing. The right side in FIG. 1 is referred to as “upstream side” and the left side is referred to as “downstream side”, and the printed material is conveyed from right to left in FIG.

  As shown in FIG. 1, an inkjet printing apparatus 1 includes an unwinding roller C1 for unwinding a fabric (printed object) C, an endless belt 2 that conveys the fabric C, and an upstream side that drives the endless belt 2 intermittently. A drive roller 3a and a downstream drive roller 3b are provided. Above the upstream drive roller 3a, there is provided an overall sticking roller (overall sticking means) 4 for sticking the entire fabric C onto the endless belt 2, and both end sticking rollers are provided downstream of the whole sticking roller 4. (Both ends pasting means) 5 is installed. Further, an inkjet printing unit 6 for printing the fabric C is installed between the upstream drive roller 3a and the downstream drive roller 3b. A take-up roller C2 that winds up the fabric C peeled from the downstream drive roller 3b via the intermediate roller 7 is installed downstream of the downstream drive roller 3b. A drying heater plate 8 for drying the fabric C is installed between the intermediate roller 7 and the take-up roller C2.

  Hereinafter, each member which comprises the inkjet textile printing apparatus 1 is demonstrated.

  The endless belt 2 can employ various materials such as metal, rubber, and plastic, and an adhesive surface is formed on the outer surface thereof. This pressure-sensitive adhesive surface can be formed, for example, by applying a pressure-sensitive pressure-sensitive adhesive to the surface of the endless belt 2. Thus, since the adhesive surface is formed on the surface of the endless belt 2, the cloth C is pressed onto the endless belt 2 by the whole sticking roller 4 and the both end sticking rollers 5 to be described later. It can be stuck on the belt 2.

  The upstream drive roller 3a and the downstream drive roller 3b intermittently rotate counterclockwise in FIG. 1 using a motor (not shown) as a drive source, thereby causing the endless belt 2 to run intermittently in the arrow direction. The upstream drive roller 3a and the downstream drive roller 3b rotate at the same timing and at the same speed.

  The entire sticking roller 4 is installed on the upstream side of the endless belt 2, and has a length that presses the entire fabric C against the endless belt 2. Since this whole sticking roller 4 is in contact with the fabric C conveyed on the endless belt 2, it is configured to rotate clockwise as the endless belt 2 travels. As shown in FIG. 2, the entire sticking roller 4 is composed of a shaft portion 41 and a roller main body portion 42. The roller main body 42 is attached to the shaft 41 via a bearing (not shown) so as to rotate around the shaft (center shaft) 41. The roller body 42 is formed longer than the width of the fabric C so that the entire fabric C can be pressed. The outer layer of the roller main body 42 is made of an elastic material such as rubber. By forming the outer layer of the roller main body portion 42 with an elastic material such as rubber in this way, the fabric C can be pressed toward the endless belt 2 with a uniform force without damaging the fabric C.

  Next, the both-ends sticking roller 5 provided in the downstream of the whole sticking roller 4 is demonstrated, referring FIG.2 and FIG.3. As shown in FIG. 2, two sticking rollers 5 on both ends are installed on a rod-like shaft 102 supported by a support member 101 on which a U-shaped receiving part is formed, and both end parts in the width direction of the fabric C Located on the top. As shown in FIG. 3, each of the both-end pasting rollers 5 includes a slide sleeve 51 that is slidably attached to the shaft 102, a roller body portion 52 that is rotatably attached to the slide sleeve 51, and And a rubber layer 53 formed so as to cover the outer peripheral surface of the roller main body 52.

  The slide sleeve 51 is formed with a through hole 511 extending in the horizontal direction, and can slide along the shaft 102 by passing the shaft 102 through the through hole 511. The slide sleeve 51 has a screw hole 512 formed from the outer peripheral surface toward the through hole 511, and a fixing screw 513 is screwed into the screw hole 512. By tightening the fixing screw 513, the fixing screw 513 and the shaft 102 are engaged, and the slide sleeve 51 is fixed so as not to slide or rotate with respect to the shaft 102. Further, by loosening the fixing screw 513, the engagement state between the fixing screw 513 and the shaft 102 is released, and the slide sleeve 51 can slide and rotate with respect to the shaft 102.

  The roller main body 52 is attached to the slide sleeve 51 via a bearing 54 so that it can rotate with respect to the slide sleeve 51. The roller body 52 is made of steel, but the material is not particularly limited. The widths of the roller body 52 and the rubber layer 53 are not particularly limited, but are generally preferably about 30 to 60 mm.

  The inkjet textile printing unit 6 is installed between the upstream drive roller 3a and the downstream drive roller 3b, and has a printer head (not shown) and a head carriage (not shown) on which the printer head is mounted. Yes. When printing on the cloth C, the head carriage scans in the width direction of the cloth C, and while the head carriage scans, ink is ejected from the printer head to print the cloth C.

  A drying heater plate 8 is installed downstream of the peeling roller 7 so as to dry the fabric C which has been printed and peeled from the endless belt 2. In order to dry the printed fabric C, the drying heater plate 8 is preferably raised to 100 to 130 degrees. A take-up roller C2 for taking up the dried fabric C is installed downstream of the drying heater plate 8.

  Next, a printing method using the above-described inkjet printing apparatus 1 will be described.

  First, as shown in FIGS. 1 and 2, the fabric C is unwound from the unwinding roller C <b> 1 and passed between the endless belt 2 and the entire sticking roller 4. As a result, the fabric C is pressed onto the endless belt 2 by the weight of the entire sticking roller 4 and stuck onto the endless belt 2. The pressing force is adjusted by adjusting the weight of the entire sticking roller 4 according to the type and thickness of the fabric C. By adjusting the pressing force of the entire sticking roller 4 in this way, the fabric C is pressed onto the endless belt 2 by the whole sticking roller 4 with an appropriate force and stuck onto the endless belt 2. And it adjusts so that the both-ends sticking roller 5 may be located in the width direction both ends of the fabric C stuck on the endless belt 2 in this way. In this adjusting method, as shown in FIG. 3, first, the fixing screws 513 are loosened so that the respective sticking rollers 5 at both ends can slide with respect to the shaft 102. And each both-ends sticking roller 5 is moved to the position corresponding to the width direction edge part of the fabric C, the fixing screw 513 is tightened, and each both-ends sticking roller 5 is fixed so that it may not slide. In addition, the position where this both-ends sticking roller 5 respond | corresponds to the width direction edge part of the fabric C is the position where the rubber layer 53 of the both-ends sticking roller 5 is pressing about 15-30 mm from the width direction edge of the cloth C. It is preferable that

  As described above, after pressing the entire fabric C with the entire affixing roller 4 and affixing it to the endless belt 2, and further pressing both ends of the fabric C with the affixing rollers 5 at both ends and affixing to the endless belt 2, The fabric C is conveyed downstream by the endless belt 2. Then, printing is performed by the inkjet printing unit 6. Thereafter, the fabric C is conveyed to the downstream drive roller 3b, peeled off from the endless belt 2, and taken up by the take-up roller C2 via the intermediate roller 7. The fabric C is dried by the drying heater plate 8 until the intermediate roller 7 is wound around the winding roller C2.

  As described above, according to the present embodiment, since the entire fabric C is adhered to the endless belt 2 by the entire affixing roller 4, both ends of the fabric C are further affixed to the endless belt 2 by the both end affixing rollers 5. The problem that both end portions of the fabric C are separated from the endless belt 2 and floated can be solved.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these, A various change is possible unless it deviates from the meaning of this invention. For example, in the above-described embodiment, the both-end pasting roller 5 has the rubber layer 53 as the outermost layer, but from the viewpoint of the peelability of the adhesive surface of the endless belt 2 and the both-end pasting roller 5, What coated the fluororesin to the outer peripheral surface can be used. Similarly, the entire sticking roller 4 can also be coated with a fluororesin on the outer peripheral surface of the roller main body 42.

  Further, the adhesive surface of the endless belt 2 can be formed of a heat sensitive adhesive instead of a pressure sensitive adhesive. In this case, since it is necessary to heat the fabric C in advance, the roller main body 42 of the entire application roller 4 and the roller main body 52 of the both-end application roller 5 are made of steel, and the roller main bodies 42 and 52 are made of steam or The fabric C is bonded to the endless belt 2 by using a heater roller by heating with electric heat, warm water or the like. In this case, it is preferable not to provide a separate layer on the outer peripheral surfaces of the roller main body portions 42 and 52.

  Moreover, in the said embodiment, although the both-ends sticking roller 5 which presses and sticks the fabric C to the endless belt 2 with dead weight is employ | adopted as a both-ends sticking means, both-ends sticking means is specifically limited to this. Instead, for example, both ends of the fabric C can be applied to the endless belt 2 by applying air to the both ends of the fabric C from above the fabric C.

  In addition, as shown in FIG. 4, for example, the roller body 52 is formed of a permanent magnet, and the ferromagnetic table 9 formed of a ferromagnetic material such as steel is installed below the endless belt 2. You can also According to this configuration, the roller main body 52 is attracted to the ferromagnetic table 9 together with the shaft 102 by the magnetic force, and the fabric C can be pressed against the endless belt 2. Therefore, the both-ends sticking roller 5 which has the roller main-body part 52 made from a permanent magnet presses the fabric C against the endless belt 2 by its own weight and magnetic force. For this reason, when it is desired to press the fabric C against the endless belt 2 with a stronger force, it can be dealt with by replacing the roller body 52 with a roller body 52 with a stronger magnetic force, and vice versa. Can be handled by replacing the roller main body 52 with a weaker magnetic force. In addition, since the ferromagnetic body table 9 is fixed, it is the both-ends sticking roller 5 that moves by the magnetic force.

  Moreover, the same effect as the both end part sticking roller 5 which formed the roller main-body part 52 with the permanent magnet can be acquired also by comprising so that the both end part sticking roller 5 may have an electromagnet. Alternatively, the roller main body 52 of the both-end pasting roller 5 may be made of a ferromagnetic material and the table 9 'may be made of an electromagnet. When the electromagnet is used in this way, when it is desired to press the fabric C against the endless belt 2 with a stronger force, it can be dealt with by increasing the current of the electromagnet, and conversely, when it is desired to press with a weaker force, This can be dealt with by weakening the current of the electromagnet.

  Moreover, in the said embodiment, although the heater plate 8 is used in order to dry the printed fabric C, a hot-air type drying apparatus can be installed instead, or both can be used together.

1 is a schematic side view showing an embodiment of an inkjet printing apparatus according to the present invention. It is a perspective view which shows the detail of the upstream of the inkjet textile printing apparatus which concerns on this embodiment. It is front sectional drawing which shows the both-ends sticking roller which concerns on this embodiment. It is front sectional drawing which shows the both-ends sticking roller which concerns on other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inkjet printing apparatus 2 Endless belt 4 Whole sticking roller (whole sticking means)
5 Both ends pasting roller (both ends pasting means)

Claims (8)

An ink jet printing apparatus for printing an object to be printed,
An endless belt for conveying the printed material, having an adhesive surface to which the printed material is adhered;
A whole pasting means for pressurizing the entire width direction of the printed material and sticking the printed material to the endless belt;
Both ends pasting means for pressing only both ends in the width direction of the object to be printed and pasting both ends in the width direction of the object to be printed on the endless belt;
An inkjet printing apparatus comprising:   2. The inkjet printing according to claim 1, wherein the both-end pasting means is a both-end pasting roller that is rotatably installed on both ends in the width direction of the printed material and presses the printed material against the endless belt by its own weight. apparatus.   The inkjet printing apparatus according to claim 2, wherein the both-end sticking rollers have a steel roller main body that is rotatably installed. Further comprising a ferromagnetic material installed so as to face the both-ends sticking roller through the printed material;
The inkjet printing apparatus according to claim 2, wherein the both-ends sticking roller has a roller body made of a permanent magnet that is rotatably installed.   The inkjet printing apparatus according to claim 4, wherein the roller main body is replaceable. Further comprising a ferromagnetic material installed so as to face the both-ends sticking roller through the printed material;
The inkjet printing apparatus according to claim 2, wherein the both end sticking rollers have electromagnets.   The inkjet printing apparatus according to any one of claims 2 to 6, wherein the both end sticking rollers have a rubber layer on an outer peripheral surface.   The inkjet printing apparatus according to any one of claims 1 to 7, wherein the whole sticking means is a whole sticking roller that is rotatably installed so as to press the entire object to be printed against the endless belt by its own weight.

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