技术领域technical field
本实用新型涉及一种带加热装置的导带式喷墨印花机的压布辊，主要用于导带式喷墨印花机中。The utility model relates to a cloth pressing roller of a belt-guiding ink-jet printing machine with a heating device, which is mainly used in the belt-guiding ink-jet printing machine.
背景技术Background technique
目前导带式喷墨印花机中常用的压布辊仅仅具有压布功能，即仅仅具有将印花介质压到导带上的功能，当车间温度较低时，导带式喷墨印花机在运行过程中难以方便、有效的通过现有的压布辊将打印介质平整、牢固的压到导带上，轻者影响喷头的印花效果，重者会提高次品率，甚至会出现由于打印介质没有牢固的压到到带上，而使打印介质出现皱褶，最终损坏喷头的情况。现在还没有一种结构设计合理，布局科学，能够方便、有效的将打印介质平整、牢固的压到导带上的导带式喷墨印花机的压布辊。At present, the cloth pressing roller commonly used in the belt-guiding inkjet printing machine only has the function of pressing the cloth, that is, it only has the function of pressing the printing medium onto the belt-guiding belt. When the workshop temperature is low, the belt-guiding inkjet printing machine is running In the process, it is difficult to conveniently and effectively press the printing medium onto the guide belt smoothly and firmly through the existing pressure roller. The light one will affect the printing effect of the nozzle, and the serious one will increase the defective rate, and even there may be problems due to the lack of printing medium. Firmly pressed to the belt, causing the print media to wrinkle and eventually damage the print head. Now there is no reasonable structural design, scientific layout, and the pressure roller of the belt-guiding ink-jet printing machine that can conveniently and effectively press the printing medium onto the belt-guiding inkjet printing machine smoothly and firmly.
实用新型内容Utility model content
本实用新型的目的在于克服现有技术中存在的上述不足，而提供一种结构设计合理，布局科学，能够方便、有效的将打印介质平整、牢固的压到导带上的带加热装置的导带式喷墨印花机的压布辊。The purpose of this utility model is to overcome the above-mentioned deficiencies in the prior art, and to provide a guide with a heating device that has a reasonable structure design, a scientific layout, and can conveniently and effectively press the printing medium onto the guide belt evenly and firmly. Cloth rollers for belt inkjet printing machines.
本实用新型解决上述问题所采用的技术方案是：该带加热装置的导带式喷墨印花机的压布辊包括机架、导向辊、进布传动辊、出布传动辊、导带、横梁和喷头架，所述导向辊、进布传动辊、出布传动辊和横梁均安装在机架上，所述导带连接在进布传动辊和出布传动辊上，所述喷头架安装在横梁上，该喷头架和导带配合，其结构特点在于：还包括具有加热功能的贴布压布辊，所述贴布压布辊的两端安装在机架上，该贴布压布辊通过导带顶在进布传动辊上。具有加热功能的贴布压布辊能够将贴布压布辊的表面温度加热到50-100℃，表面温度为50-100℃的贴布压布辊既能够将印花介质烫平整，使得印花介质能够更加平整的贴合到导带上，又起到了热贴的作用，使得印花介质能够更加牢固的贴合到导带上，从而提高了印花效果，有利于提升导带式喷墨印花机的整体性能。The technical solution adopted by the utility model to solve the above-mentioned problems is: the cloth pressing roller of the belt-guiding inkjet printing machine with heating device includes a frame, a guide roller, a cloth feeding driving roller, a cloth discharging driving roller, a guiding belt, and a beam and the spray head frame, the guide rollers, cloth feed drive rollers, cloth discharge drive rollers and beams are all installed on the frame, the guide belt is connected to the cloth feed drive rollers and cloth discharge drive rollers, and the spray head frame is installed on On the beam, the spray head frame is matched with the guide belt, and its structural feature is that it also includes a cloth pressing roller with a heating function, and the two ends of the cloth pressing roller are installed on the frame, and the cloth pressing roller It is supported on the cloth feeding drive roller through the guide belt. The cloth pressing roller with heating function can heat the surface temperature of the cloth pressing roller to 50-100°C, and the cloth pressing roller with a surface temperature of 50-100°C can iron the printing medium flat, making the printing medium It can be more flatly attached to the guide belt, and it also plays the role of thermal paste, so that the printing medium can be more firmly attached to the guide belt, thereby improving the printing effect and helping to improve the efficiency of the guide belt inkjet printing machine. overall performance.
作为优选，本实用新型所述贴布压布辊包括压布辊本体、加热丝、轴承和轴承座，所述压布辊本体沿轴线方向设置有一个贯通的加热通道，该压布辊本体的两端均通过轴承和轴承座安装在机架上，所述加热丝穿接在加热通道中，该加热丝的两端露在压布辊本体外。由此使得本实用新型中的贴布压布辊的结构设计简单、合理、独特，确保贴布压布辊的表面温度均匀，使得贴布压布辊对印花介质的烫平效果更好，以及对印花介质的热贴效果也更好，更加有利于提高印花精度和印花品质。As a preference, the cloth pressing roller of the present utility model includes a pressing roller body, a heating wire, a bearing and a bearing seat, and the pressing roller body is provided with a through heating passage along the axial direction, and the pressing roller body Both ends are installed on the machine frame through bearings and bearing seats, the heating wire is passed through the heating channel, and the two ends of the heating wire are exposed outside the press roller body. This makes the structural design of the cloth pressing roller in the utility model simple, reasonable and unique, ensures that the surface temperature of the cloth pressing roller is uniform, and makes the pressing effect of the cloth pressing roller on the printing medium better, and The thermal paste effect on the printing medium is also better, which is more conducive to improving the printing accuracy and printing quality.
作为优选，本实用新型所述贴布压布辊还包括两个端盖，所述端盖中设置有通孔，两个端盖均固定在轴承座上，两个端盖分别位于压布辊本体的两端，所述加热丝穿接在端盖的通孔中。由此使得本实用新型中的贴布压布辊的结构更加科学，端盖不仅对轴承起到良好的防尘作用，也对加热丝起到了定位作用。As a preference, the cloth sticking and pressing roller of the utility model also includes two end caps, and through holes are arranged in the end caps, both end caps are fixed on the bearing seat, and the two end caps are respectively located on the The two ends of the body, the heating wires are passed through the through holes of the end caps. This makes the structure of the cloth sticking and pressing roller in the utility model more scientific, and the end cover not only plays a good dustproof effect on the bearing, but also plays a positioning effect on the heating wire.
作为优选，本实用新型位于加热通道内的加热丝为螺旋状结构。由此使得本实用新型中的加热丝的加热效果更好。As a preference, the heating wire in the heating channel of the present invention has a helical structure. Therefore, the heating effect of the heating wire in the utility model is better.
作为优选，本实用新型所述压布辊本体为金属材质。由此使得本实用新型中的压布辊本体的传热效果更好、更均匀，能够有效确保压布辊本体的表面温度更加均匀。Preferably, the press roller body of the utility model is made of metal. As a result, the heat transfer effect of the cloth pressing roller body in the utility model is better and more uniform, and the surface temperature of the cloth pressing roller body can be effectively ensured to be more uniform.
作为优选，本实用新型所述端盖的轴线和压布辊本体的轴线重叠。由此使得本实用新型的结构设计更加合理、科学。Preferably, the axis of the end cover of the present invention overlaps with the axis of the pressure roller body. This makes the structural design of the utility model more reasonable and scientific.
本实用新型与现有技术相比，具有以下优点和效果：贴布压布辊能够将表面的温度升高到50-100℃，当贴布压布辊将印花介质贴合到导带上的同时，既起到了烫平印花介质的功能，又起到了热贴的功能，使得印花介质能够更加平整、牢固的贴合到导带上，当牢固的载有平整的印花介质的导带进入打印区域后，能够更加有效的确保印花的精准度，有利于提高印花产品的质量和品质，大大提升了导带式喷墨印花机的整体性能。Compared with the prior art, the utility model has the following advantages and effects: the cloth pressing roller can raise the temperature of the surface to 50-100°C, when the cloth pressing roller attaches the printing medium to the guide belt At the same time, it not only has the function of ironing the printing medium, but also has the function of hot pasting, so that the printing medium can be more flat and firmly attached to the guide belt. When the guide belt firmly carrying the flat printing medium enters the printing After the area, it can more effectively ensure the accuracy of printing, which is conducive to improving the quality and quality of printed products, and greatly improves the overall performance of the belt-type inkjet printing machine.
本实用新型的结构简单，设计合理，采用表面温度为50-100℃的贴布压布辊，起到了烫平印花介质和热贴的双重作用，构思巧妙、独特，通过一个简单的结构改进，实现了双重功能，且在烫平印花介质的同时进行热贴，大大提高了热贴效果，产生了协同效应，具有非显而易见性，在简单结构的前提下，实现功能的最大化，对于本领域技术人员来说，是需要付出创造性劳动的。The utility model has a simple structure and a reasonable design. It adopts a cloth pressing roller with a surface temperature of 50-100°C, which plays the dual role of ironing printing medium and hot pasting. The concept is ingenious and unique. Through a simple structural improvement, It realizes dual functions, and performs hot-sticking while ironing the printing medium, which greatly improves the effect of hot-sticking, produces a synergistic effect, and is non-obvious. On the premise of a simple structure, it realizes the maximum function. For technicians, it is necessary to pay creative work.
附图说明Description of drawings
图1是本实用新型实施例中带加热装置的导带式喷墨印花机的压布辊的结构示意图。Fig. 1 is a schematic structural view of the press roller of the belt-guiding inkjet printing machine with a heating device in an embodiment of the present invention.
图2是本实用新型实施例中贴布压布辊的剖视结构示意图。Fig. 2 is a schematic cross-sectional structure diagram of a cloth patching roller in an embodiment of the present invention.
图3是本实用新型实施例中贴布压布辊去掉端盖后的侧视结构示意图。Fig. 3 is a side view structural schematic diagram of the cloth patching and pressing roller in the embodiment of the utility model after the end cover is removed.
图4是印花介质安装到图1中的结构示意图。Fig. 4 is a schematic diagram of the structure of printing media installed in Fig. 1 .
具体实施方式Detailed ways
下面结合附图并通过实施例对本实用新型作进一步的详细说明，以下实施例是对本实用新型的解释而本实用新型并不局限于以下实施例。The utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the utility model and the utility model is not limited to the following examples.
实施例。Example.
参见图1至图4，本实施例中带加热装置的导带式喷墨印花机的压布辊包括机架、导向辊1、进布传动辊2、出布传动辊3、导带4、横梁5、喷头架6和贴布压布辊7，其中，导向辊1、进布传动辊2、出布传动辊3和横梁5均安装在机架上。Referring to Fig. 1 to Fig. 4, the pressure roller of the belt-guiding inkjet printing machine with a heating device in this embodiment includes a frame, a guide roller 1, a cloth feeding driving roller 2, a cloth discharging driving roller 3, a guiding belt 4, Crossbeam 5, sprinkler head frame 6 and cloth sticking roller 7, wherein, guide roller 1, cloth feeding driving roller 2, cloth discharging driving roller 3 and crossbeam 5 are all installed on the frame.
本实施例中的导带4连接在进布传动辊2和出布传动辊3上，导带4能够随进布传动辊2和出布传动辊3的转动而转动，从而完成输送印花介质8的功能。本实施例中的喷头架6安装在横梁5上，该喷头架6和导带4配合，喷头架6中的喷头能够对进入打印区域的导带上的印花介质8进行印花操作。The guide belt 4 in this embodiment is connected to the cloth feeding driving roller 2 and the cloth discharging driving roller 3, and the guiding belt 4 can rotate with the rotation of the cloth feeding driving roller 2 and the cloth discharging driving roller 3, thereby completing the delivery of the printing medium 8 function. The nozzle frame 6 in this embodiment is installed on the beam 5, and the nozzle frame 6 cooperates with the guide belt 4, and the nozzles in the nozzle frame 6 can print the printing medium 8 on the guide belt entering the printing area.
本实施例中的贴布压布辊7包括压布辊本体71、加热丝72、两个轴承73、两个轴承座74和两个端盖75，其中，压布辊本体71沿压布辊本体71的轴线方向设置有一个贯通的加热通道76，即加热通道76贯穿整根压布辊本体71。压布辊本体71的两端均通过一个轴承73和一个轴承座74安装在机架上，即贴布压布辊7的两端安装在机架上，使得压布辊本体71能够在机架上转动。The cloth pressing roller 7 in this embodiment includes a pressing roller body 71, a heating wire 72, two bearings 73, two bearing housings 74 and two end covers 75, wherein the pressing roller body 71 is along the direction of the pressing roller. A continuous heating channel 76 is provided in the axial direction of the main body 71 , that is, the heating channel 76 runs through the entire pressing roller body 71 . Both ends of the cloth pressing roller body 71 are installed on the frame through a bearing 73 and a bearing seat 74, that is, the two ends of the cloth pressing roller 7 are installed on the frame, so that the cloth pressing roller body 71 can be mounted on the frame. Turn up.
本实施例中的加热丝72穿接在加热通道76中，该加热丝72的两端露在压布辊本体71外，加热丝72和压布辊本体71之间不接触，压布辊本体71的转动不会影响加热丝72的位置。本实施例的端盖75中设置有通孔，两个端盖75分别固定在两个轴承座74上，两个端盖75分别位于压布辊本体71的两端，端盖75的轴线和压布辊本体71的轴线重叠。加热丝72穿接在端盖75的通孔中，加热丝72和端盖75可以固定。本实施例中的端盖75既对轴承73起到了防尘作用，又对加热丝72起到了定位作用，能够更加有效的确保压布辊本体71的转动不影响到加热丝72。The heating wire 72 in this embodiment is connected in the heating channel 76, and the two ends of the heating wire 72 are exposed outside the cloth pressing roller body 71, and there is no contact between the heating wire 72 and the cloth pressing roller body 71, and the cloth pressing roller body The rotation of 71 will not affect the position of heating wire 72. The end cover 75 of this embodiment is provided with a through hole, and the two end covers 75 are respectively fixed on the two bearing seats 74. The axes of the press roller body 71 overlap. The heating wire 72 passes through the through hole of the end cover 75, and the heating wire 72 and the end cover 75 can be fixed. The end cover 75 in this embodiment not only plays a dustproof role for the bearing 73, but also plays a positioning role for the heating wire 72, which can more effectively ensure that the rotation of the pressure roller body 71 does not affect the heating wire 72.
本实施例中的贴布压布辊7在加热丝72的加热作用下，使得压布辊本体71的表面温度可以达到50-100℃，位于加热通道76中的加热丝72通电后产生热量，使得加热通道76内的空气温度上升，并通过热传导将热量传递给压布辊本体71，使得压布辊本体71的温度升高，最终使得压布辊本体71的表面温度达到50-100℃。当压布辊本体71的表面温度达到50-100℃时，加热丝72断电，停止对加热丝72的加热，直至压布辊本体71的表面温度低于50-100℃时，再对加热丝72进行通电加热。本领域技术人员可以采用现有技术对压布辊本体71的表面温度进行控制。In this embodiment, under the heating action of the heating wire 72, the surface temperature of the cloth pressing roller body 71 can reach 50-100° C., and the heating wire 72 in the heating channel 76 generates heat after being energized. The temperature of the air in the heating channel 76 rises, and the heat is transferred to the press roller body 71 through heat conduction, so that the temperature of the press roller body 71 rises, and finally the surface temperature of the press roller body 71 reaches 50-100°C. When the surface temperature of the pressing roller body 71 reaches 50-100°C, the heating wire 72 is powered off, and the heating of the heating wire 72 is stopped until the surface temperature of the pressing roller body 71 is lower than 50-100°C, and then the heating Wire 72 is heated by electricity. Those skilled in the art can use existing technologies to control the surface temperature of the cloth pressing roller body 71 .
本实施例中的贴布压布辊7通过导带4顶在进布传动辊2上，即位于贴布压布辊7和进布传动辊2之间的导带4被夹在贴布压布辊7和进布传动辊2之间，贴布压布辊7和导带4接触，导带4再和进布传动辊2接触，印花介质8从贴布压布辊7和导带4之间输入，当印花介质8贴到导带4上时，表面温度为50-100℃的贴布压布辊7对印花介质8起到烫平的作用，使得印花介质8更加平整的贴到导带4上，此外，表面温度为50-100℃的贴布压布辊7对印花介质8起到了热贴的作用，使得印花介质8能够更加牢固的贴合到导带4上。In this embodiment, the cloth sticking roller 7 is supported on the cloth feed driving roller 2 through the guide belt 4, that is, the guide belt 4 between the cloth sticking press roller 7 and the cloth feeding drive roller 2 is sandwiched between the cloth sticking press Between the cloth roller 7 and the cloth feeding drive roller 2, the cloth sticking roller 7 is in contact with the guide belt 4, and the guide belt 4 is in contact with the cloth feeding drive roller 2, and the printing medium 8 passes from the cloth sticking press roller 7 to the guide belt 4. When the printing medium 8 is pasted on the guide belt 4, the cloth pressing roller 7 with a surface temperature of 50-100°C will iron the printing medium 8, so that the printing medium 8 can be pasted more smoothly On the conduction belt 4 , in addition, the cloth applicator roller 7 with a surface temperature of 50-100° C. plays a role in thermally affixing the printing medium 8 , so that the printing medium 8 can be more firmly attached to the conduction belt 4 .
通常情况下，压布辊本体71为金属材质，位于加热通道76内的加热丝72为螺旋状结构。Usually, the cloth pressing roller body 71 is made of metal, and the heating wire 72 located in the heating channel 76 has a spiral structure.
此外，需要说明的是，本说明书中所描述的具体实施例，其零、部件的形状、所取名称等可以不同，本说明书中所描述的以上内容仅仅是对本实用新型结构所作的举例说明。凡依据本实用新型专利构思所述的构造、特征及原理所做的等效变化或者简单变化，均包括于本实用新型专利的保护范围内。本实用新型所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，只要不偏离本实用新型的结构或者超越本权利要求书所定义的范围，均应属于本实用新型的保护范围。In addition, it should be noted that the specific embodiments described in this specification may be different in parts, shapes and names of parts, and the above content described in this specification is only an illustration of the structure of the present invention. All equivalent changes or simple changes based on the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the definition defined in the claims scope, all should belong to the protection scope of the present utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729224.1UCN204322762U (en) | 2014-11-28 | 2014-11-28 | The cloth pressing roller of the conduction band type inkjet printing machine with heater |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729224.1UCN204322762U (en) | 2014-11-28 | 2014-11-28 | The cloth pressing roller of the conduction band type inkjet printing machine with heater |
| Publication Number | Publication Date |
|---|---|
| CN204322762Utrue CN204322762U (en) | 2015-05-13 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420729224.1UExpired - LifetimeCN204322762U (en) | 2014-11-28 | 2014-11-28 | The cloth pressing roller of the conduction band type inkjet printing machine with heater |
| Country | Link |
|---|---|
| CN (1) | CN204322762U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346211A (en)* | 2015-11-30 | 2016-02-24 | 深圳市全印图文技术有限公司 | Cloth feeding device used for eliminating cloth wrinkle and embossing machine |
| JP2018134792A (en)* | 2017-02-22 | 2018-08-30 | セイコーエプソン株式会社 | Drying device, recording device and drying method |
| EP3403833A1 (en) | 2017-05-19 | 2018-11-21 | Seiko Epson Corporation | Printing apparatus |
| CN109177534A (en)* | 2018-10-11 | 2019-01-11 | 杭州宏华数码科技股份有限公司 | Two-sided image recording device and recording method to flower stamp is used in guide belt digital printing machine |
| CN109177533A (en)* | 2018-10-11 | 2019-01-11 | 杭州宏华数码科技股份有限公司 | A kind of two-sided image recording device and recording method to flower stamp for guide belt printing machine |
| CN116619901A (en)* | 2023-02-09 | 2023-08-22 | 得普技术(广东)有限公司 | Conduction band type digital printing machine |
| EP4375079A1 (en)* | 2022-11-28 | 2024-05-29 | Seiko Epson Corporation | Transport device and recording device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346211A (en)* | 2015-11-30 | 2016-02-24 | 深圳市全印图文技术有限公司 | Cloth feeding device used for eliminating cloth wrinkle and embossing machine |
| CN105346211B (en)* | 2015-11-30 | 2018-09-21 | 深圳市全印图文技术有限公司 | A kind of entering arrangment and printing machine for eliminating cloth fold |
| JP2018134792A (en)* | 2017-02-22 | 2018-08-30 | セイコーエプソン株式会社 | Drying device, recording device and drying method |
| EP3403833A1 (en) | 2017-05-19 | 2018-11-21 | Seiko Epson Corporation | Printing apparatus |
| JP2018192733A (en)* | 2017-05-19 | 2018-12-06 | セイコーエプソン株式会社 | Printing device |
| CN108944084A (en)* | 2017-05-19 | 2018-12-07 | 精工爱普生株式会社 | Printing equipment |
| CN108944084B (en)* | 2017-05-19 | 2021-11-19 | 精工爱普生株式会社 | Printing device |
| CN109177534A (en)* | 2018-10-11 | 2019-01-11 | 杭州宏华数码科技股份有限公司 | Two-sided image recording device and recording method to flower stamp is used in guide belt digital printing machine |
| CN109177533A (en)* | 2018-10-11 | 2019-01-11 | 杭州宏华数码科技股份有限公司 | A kind of two-sided image recording device and recording method to flower stamp for guide belt printing machine |
| EP4375079A1 (en)* | 2022-11-28 | 2024-05-29 | Seiko Epson Corporation | Transport device and recording device |
| CN116619901A (en)* | 2023-02-09 | 2023-08-22 | 得普技术(广东)有限公司 | Conduction band type digital printing machine |
| CN116619901B (en)* | 2023-02-09 | 2024-09-10 | 得普技术(广东)有限公司 | Conduction band type digital printing machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | Granted publication date:20150513 | |
| CX01 | Expiry of patent term |