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WO2013053332A1 - 冷转移印花机的预缩装置 - Google Patents

冷转移印花机的预缩装置 Download PDF

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Publication number
WO2013053332A1
WO2013053332A1 PCT/CN2012/082847 CN2012082847W WO2013053332A1 WO 2013053332 A1 WO2013053332 A1 WO 2013053332A1 CN 2012082847 W CN2012082847 W CN 2012082847W WO 2013053332 A1 WO2013053332 A1 WO 2013053332A1
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WO
WIPO (PCT)
Prior art keywords
roller
mesh belt
transfer printing
roll
tension
Prior art date
Application number
PCT/CN2012/082847
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English (en)
French (fr)
Inventor
钟博文
Original Assignee
长胜纺织科技发展(上海)有限公司
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Publication of WO2013053332A1 publication Critical patent/WO2013053332A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B41F16/02—Transfer printing apparatus for textile material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
    • B41F16/006—Arrangements for moving, supporting or positioning the printing foil or band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
    • B41F16/0093—Attachments or auxiliary devices
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C21/00—Shrinking by compressing

Definitions

  • the utility model relates to a printing and dyeing machine in a textile machine, in particular to a pre-shrinking device after a needle-plate chain tenter unit of a cold transfer printing machine.
  • the fabric needs to be impregnated with the pretreatment liquid before transfer to enhance the bonding ability of the fabric and the dye, thereby increasing the transfer rate of the dye.
  • the needle-plate chain tenter is required to ensure the width and dimension.
  • the fabric When the fabric enters the transfer printing unit, the fabric must be slack, smooth and tension-free, and the warp and weft density of the fabric must reach the process size after printing, so as to ensure the pattern. After being transferred, it has a flower-shaped deformation distortion, and the dye distribution is uniform. Background technique
  • Transfer printing is a new type of printing method. Because the production process meets the requirements of energy saving and environmental protection, and the operation is simple, a printing revolution has been set up in the market.
  • the transfer printing is to print the dye originally printed on the fabric, first printed on the transfer printing paper by a printing machine, and then transfer the pattern on the transfer printing paper to the fabric by mechanical or chemical means.
  • This printing method usually involves impregnating or coating the fabric to be printed with a pretreatment liquid to enhance the ability of the fabric to absorb the dye to improve the dye transfer rate. In the process of padding (from dry state to wet state), warp elongation and latitudinal shrinkage may occur, especially knitted fabrics are more obvious.
  • the fabric to be printed is increased after the padding, and the width of the fabric is ensured, that is, the weft elongation of the fabric, the warp direction There is shrinkage, and the weft and weft arcs become smaller.
  • Patent No. 200820055536.3 is a utility model patent entitled “Automatic Transfer Device for Transfer Printing Machine", which is for the purpose of ensuring the warp and weft size of the transfer cloth.
  • the needle chain tenter unit can only restore the weft dimension of the fabric, and the warp dimension is difficult to ensure.
  • the needle-plate chain tenter unit currently used can be controlled in the latitudinal dimension, and at the same time reduces the occurrence of latitude and weft arc, but in the warp direction, it can only naturally contract with the latitudinal elongation. There may be problems such as arcing, warping, etc.
  • the utility model provides a pre-shrinking device for a cold transfer printing machine, which can overcome the shortcoming that the warp dimension of the currently printed fabric before entering the transfer printing unit cannot meet the required specifications, and can have a stable tension and a small
  • the printed fabric is conveyed to the transfer printing area in a flat running state by arc and warp.
  • a pre-shrinking device for a cold transfer printing machine which is composed of a mesh belt conveying mechanism, a widening adjustment mechanism, a rubber blanket pre-shrinking mechanism and a tension control mechanism.
  • the blanket pre-shrinking mechanism is a pressure roller and a triangular roller connected by a bearing seat on the left and right wall panels of the frame, and the pressure roller and the pressure roller motor are drivingly connected; and in the chute of the left and right wall panels of the rack
  • the pressure roller, the water squeezing roller and the tensioning roller are connected through a bearing seat, and the bearing seat of the pressure roller is connected via a connecting arm and a screw rod and a pressing motor, and the bearing seats at the two ends of the water squeezing roller and the left and right cylinders respectively
  • the top end is connected, the bearing seats at the two ends of the tensioning roller are respectively connected by the connecting arm and the screw rod and the left and right lifting motors; another annular rubber blanket
  • the surrounding pressure roller, the water squeezing roller, the triangular roller and the tension roller are wrapped, and the outer circumferential surface of the annular rubber blanket is in contact with a part of the circumferential surface of the pressure roller to form a blanket pre-
  • the mesh belt conveying mechanism is composed of a mesh belt driving roller and a mesh belt tension roller, and an annular mesh belt and a carrier belt which are wound around the circumferential surfaces of the two rollers.
  • the expansion adjustment mechanism consists of a two-disc shaft frame, which is pivotally connected to the left and right wall panels through the central axes of the two discs. One end of the central axis of the two discs is connected to the handwheel adjuster, and the two discs are connected by two.
  • the dividing roller and the separating roller are composed of a driving motor drive connection.
  • the tension control mechanism has two links fixed at one end to the left and right wall panels, the other ends of the two links are connected with a force bar, the middle of the two links is connected with the top end of the tension frame cylinder, and is rotated at any of the connecting rods and the wall plate
  • the joint is connected to an angular displacement sensor 20 to form a tension control mechanism.
  • the pre-shrinking device of the cold transfer printing machine is sequentially composed of a mesh belt conveying mechanism, a wide-width adjusting mechanism, a blanket pre-shrinking mechanism and a tension adjusting mechanism, and is located between the conveying device of the cold transfer printing machine and the transfer device. .
  • the mesh belt driving roller of the mesh belt conveying mechanism is connected by a chain transmission and a mesh belt transmission motor, and the mesh belt transmission motor is a needle chain chain tenter synchronous transmission motor in the cold transfer printing machine conveying device.
  • the two splitter rolls of the spreader adjustment mechanism are composed of a metal roll wound with a stainless steel wire.
  • the tension bar of the tension control mechanism is an aluminum alloy stick; the angular displacement sensor 20 uses a potentiometer type sensor.
  • the mesh belt conveying mechanism is to make the printed fabric enter the pre-shrinking unit in a state of smoothness, slackness and no tension, and can support the printed fabric so that the warp and weft density of the printed fabric is not caused by the drooping of its own weight, thereby ensuring the later stage. Transfer printing requirements.
  • the active expanding mechanism can actively expand the width, and at the same time reduce the tension of the fabric to be printed, and ensure that the fabric to be printed can enter the blanket pre-shrinking mechanism without tension and smooth and wrinkle-free, so that the fabric achieves the best effect.
  • the blanket pre-shrinking mechanism can make the fabric to be printed close to the rubber blanket and shrink accordingly.
  • the tension control mechanism mainly adjusts the tension synchronization between the pre-shrinking unit and the transfer printing unit, ensures the speed uniformity of the front and rear units, and allows the fabric to be printed to enter the final transfer printing device without tension, thereby ensuring the printing quality of the fabric.
  • the advantage of the cold transfer printing machine pre-shrinking device provided by the utility model is that: after the pre-shrinking process of the fabric, the warp direction size and density of the fabric can be greatly improved, and the oblique and arc-arc is effectively controlled, and finally The tension at the cloth is synchronously controlled to allow the printed fabric to relax and tension-free into the transfer device, thereby improving the quality of the fabric transfer.
  • Figure 1 is a schematic view of a pre-shrinking device of a cold transfer printing machine.
  • Figure 2 is a plan view of Figure 1.
  • Rubber pre-shrinking mechanism It adopts the pre-shrinking machine of printing and dyeing in the textile industry. After being modified, it is connected with the cold transfer printing machine.
  • the pressure roller 11 and the triangular roller 10 are connected to the left and right wall panels of the frame through the bearing housing; the pressure roller 7, the water squeezing roller 9 and the tension roller are also connected to the sliding groove of the left and right wall panels of the rack through the bearing housing. 14; another annular rubber blanket 22 is wrapped around the connecting pressure roller 7, the water squeezing roller 9, the triangular roller 10 and the tension roller 14, and the outer circumferential surface of the annular rubber blanket is in contact with a part of the circumferential surface of the pressure roller 11, forming an oak Blanket pre-shrinking mechanism.
  • the pressure roller 11 is drivingly connected to the pressure roller motor 19, and the pressure roller 11 is rotationally moved.
  • the bearing seat of the pressure roller 7 is connected to the screw and the pressing motor 21 via the connecting arm and the screw.
  • the pressing motor is in operation, the connecting arm and the screw rod and the bearing seat are engaged, and the pressing roller 7 can be pushed in the sliding groove. mobile.
  • the bearing seats at the two ends of the water squeezing roller 9 are respectively connected with the left and right cylinder heads, and the water squeezing roller 9 is paired with the annular rubber blanket 22 by the expansion and contraction of the left and right cylinders and under the action of the corresponding pressure roller on the outer circumference of the annular rubber blanket. Produce extrusion.
  • the bearing seats at the two ends of the tensioning roller 14 are respectively connected to the left and right lifting motors 15 via the connecting arm and the screw rod.
  • the left and right lifting motors 15 act simultaneously, the connecting arm and the screw rod and the bearing seat are engaged, and the tension is pushed.
  • the roller 14 moves in the chute for tensioning the annular rubber blanket 22; when one of the left and right lifting motors 15 acts as a lifting motor, the one end of the tensioning roller 14 is pushed to move in the chute, and the ring rubber
  • the blanket plays a role in correcting the deviation.
  • the blanket pre-shrinking mechanism also includes components such as a grinding roller 5, a spray pipe and a water receiving tray.
  • the belt belt driving roller 3 and the belt tensioning roller 6 and the wrapping belt are integrally formed on the circumferential surface of the two rollers.
  • the mesh belt driving roller 3 of the mesh belt conveying mechanism is connected by a chain transmission and a belt belt transmission motor 17, which is a needle chain chain tenter synchronous transmission motor in the cold transfer printing machine conveying device.
  • Expansion adjustment mechanism from the left and right of the two discs of the pedestal, and through the middle of the two discs
  • the mandrel is rotatably connected to the left and right wall plates, one end of the central axis of the two discs is connected with the hand wheel adjuster, and two splitter rolls 8 are rotatably connected between the two discs, and the two splitter rolls 8 are made of metal rolls wound with stainless steel wires. And consisting of driving motor drive connections to form a wide-width adjustment mechanism;
  • Tension control mechanism two links fixed to the left and right wall panels by one end, the other ends of the two links are connected with a force bar 13, the tension bar 13 is composed of an aluminum alloy; the middle of the two links and the top end of the tension frame cylinder 12 Connecting, and connecting an angular displacement sensor 20 at any of the connecting links of the connecting rod and the wall plate, the angular displacement sensor 20 adopts a potentiometer type sensor; together constitute a tension control mechanism.
  • the processing route of the printed fabric is as follows: the printed fabric is first taken off from the decoupling roller 1 of the cold transfer printing machine conveying device, and then fed to the endless mesh belt 4 of the mesh belt conveying mechanism after the guiding cloth 2 Above, the two-part roller 8 which is conveyed to the expansion adjusting mechanism via the endless belt 4 is wrapped and expanded, and then enters the blanket pre-shrinking mechanism, and is pressed between the annular rubber blanket 22 and the pressure-bearing roller 11. After the shrinking action, the tension roller 13 of the tension control mechanism is finally passed through the tension roller 13 under the set tension, and is fed into the expansion roller 16 of the cold transfer printing machine transfer device, and then transferred to the transfer paper together for transfer. The device is transferred.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

一种冷转移印花机的预缩装置，包括承压辊（11）、三角辊（10）、加压辊（7）、挤水辊（9）及张紧辊（14）；另有一环形橡胶毯（22）包绕连接加压辊（7）、挤水辊（9）、三角辊（10）和张紧辊（14），环形橡胶毯（22）的外周面和承压辊（11）的部分圆周面接触连接，构成橡胶预缩机构，其特征是：预缩装置还包括网带输送机构、扩副调节机构和张力控制机构；网带输送机构由网带传动辊（3）和网带张紧辊（6）及包绕连接在该两辊圆周面上的环形网带（4）和拖带共同构成；扩副调节机构包括左右为两圆盘的轴架和两根分丝辊（8）；张力控制机构包括张力辊（13）和角位移传感器（20）。转印织物经预缩装置处理后，使织物的径向尺寸及密度得到很大改善，经斜和经弧可有效控制。

Description

冷转移印花机的预縮装置 技术领域
本实用新型涉及纺织机械中的印染机械， 具体是指冷转移印 花机的针板链拉幅单元后的预缩装置。 根据转移印花， 特别是冷 转移印花的工艺要求， 织物在转印前需浸渍前处理液以增强织物 和染料的结合能力， 并借此提高染料的转移率。 同时织物浸渍前 处理液之后还需要针板链拉幅以保证幅宽尺寸， 织物进入转移印 花单元时须松弛、 平整无张力， 并且织物的经纬密度必须达到印 花后的工艺尺寸， 这样才能保证图案在被转印之后具有花形不变 形失真， 染料分布均 一致的印花效果。 背景技术
转移印花是一种新型的印花方法， 由于该生产工艺符合节能 和环保的要求， 操作又简单， 很快在市场掀起了一场印花革命。 转移印花是将原先应印在织物上的染料， 先用印刷机印在转移印 花纸上， 再用机械或化学的方法将转移印花纸上的图案转印在织 物上。 这种印花方法通常是将待印织物用前处理液进行浸轧或涂 层来增强织物吸收染料的能力， 以提高染料的转移率。 待印织物 在浸轧（由干态变湿态）过程中会出现经向伸长、 纬向收缩的现 象， 尤其是针织物更加明显。 为了使待印织物在转移印花时获得 好的质量和品质， 待印织物在浸轧后增加了针板链拉幅单元， 可 以保证织物的幅宽尺寸， 即织物纬向伸长， 经向会有收缩， 纬斜 和纬弧也会变小。如"专利号 200820055536.3"题为"转移印花机的 自动输布装置"实用新型专利，就是为了转印布的经纬尺寸能够得 到保证的目的。 但由于浸轧时织物的含湿量过大， 针板链拉幅单 元只能恢复织物的纬向尺寸， 而经向尺寸很难保证。 经大量实验 证明， 这样很难保证被印织物在转移印花前和转移印花后达到规 定的尺寸和经纬密度， 从而使印花时的染料油墨转移与印花后的 染料油墨渗透产生不均匀， 尤其是针织物在转移印花前无法在经 向和纬向上达到规定的尺寸要求和保证经纬密度的不变化。 目前 采用的针板链拉幅单元在纬向的尺寸上可以得到控制， 同时减少 了纬斜和纬弧的出现， 但在经向上只能随着纬向的拉长而产生自 然的收缩， 还可能产生经弧、 经斜等问题。 这样在转移印花时， 转移印花纸上的染料油墨转印到被印织物上， 经固色和定型处理 后， 印花图案会产生变形失真， 而被印织物在转移印花后在染料 油墨的渗透和固色阶段不能保证经纬密度和规定的尺寸， 其染料 油墨渗透也会不一致， 从而影响花色的均匀性。 发明内容
为了解决现有转移印花机的针板链拉幅单元仅能很好控制被 印织物的纬向规格尺寸， 无法纠正经向的规格尺寸， 因此产生经 斜和经弧等问题， 尤其是对针织物， 经浸轧后其含湿量和伸长量 都非常大。本实用新型提供了一种用于冷转移印花机的预缩装置， 可以克服目前被印织物进入转移印花单元前的经向尺寸不能达到 要求规格的缺点， 并能以稳定的张力， 较小的经弧和经斜， 以平 整的运行状态将被印织物输送到转移印花区域。
本实用新型为了解决其技术问题所采用的技术方案： 一种冷 转移印花机的预缩装置， 它由网带输送机构、 扩幅调节机构、 橡 毯预缩机构和张力控制机构共同构成。
橡毯预缩机构是在机架的左右墙板上通过轴承座连接的承压 辊及三角辊， 所述承压辊和承压辊电机传动连接； 并在机架左右 墙板的滑槽中通过轴承座连接加压辊、 挤水辊及张紧辊， 所述加 压辊的轴承座经连接臂及丝杆和压紧电机连接， 所述挤水辊两端 的轴承座分别和左右的气缸顶端连接， 所述张紧辊两端的轴承座 分别经连接臂及丝杆和左右两提升电机连接； 另有一环形橡胶毯 包绕连接加压辊、 挤水辊、 三角辊和张紧辊， 环形橡胶毯的外周 面和承压辊的部分圆周面接触连接， 构成橡毯预缩机构。
网带输送机构由网带传动辊和网带张紧辊及包绕连接在该两 辊圆周面上的环形网带和托带共同构成。
扩幅调节机构由左右为两圆盘的轴架， 通过两圆盘的中心轴 转动连接在左右墙板上， 两圆盘中心轴的一端连接手轮调节器， 两圆盘间转动连接两根分丝辊， 分丝辊由驱动电机传动连接共同 构成。
张力控制机构由一端固定在左右墙板上的两连杆， 该两连杆 的另一端和一张力棍连接，两连杆的中部和张力架气缸顶端连接， 并在任一连杆和墙板转动连接处连接一角位移传感器 20，共同构 成张力控制机构。
所述冷转移印花机的预缩装置依次由网带输送机构、 扩幅调 节机构、 橡毯预缩机构和张力调节机构连接构成， 并位于冷转移 印花机的输布装置和转印装置之间。
所述网带输送机构的网带传动辊经链传动和网带传动电机传 动连接， 所述网带传动电机为冷转移印花机输布装置中的针板链 拉幅同步传动电机。
所述扩幅调节机构的两根分丝辊由缠绕不锈钢丝的金属辊组 成。
所述张力控制机构的张力棍为铝合金棍； 所述角位移传感器 20采用电位器式传感器。
网带输送机构是使被印织物平稳、 松弛和无张力的状态下进 入预缩单元， 并能托住被印织物而使不因其自身重量下垂产生被 印织物的经纬密度变化， 从而保证后期转移印花的要求。 主动扩 幅机构可以主动扩幅， 同时减小待印织物的张力， 保证待印织物 可在无张力和平稳无褶皱地进入橡毯预缩机构， 使织物达到最佳 效果。 橡毯预缩机构可以使待印织物紧贴着橡胶毯并随之收缩， 以达到控制经向尺寸， 减少经斜和经弧的现象， 保证织物的预缩 率。 张力控制机构主要是调节预缩单元和转移印花单元之间的张 力同步， 保证了前后两个单元的速度均匀性， 使待印织物无张力 的进入最后的转移印花装置， 保证织物的印花品质。
本实用新型提供的冷转移印花机预缩装置的优点是： 织物经 这个预缩过程后可使织物的经向尺寸及密度有很大的改善， 经斜 和经弧得到有效的控制， 最后出布处的张力得到同步控制， 使被 印织物松弛无张力的进入转印装置，从而提高了织物转印的品质。 附图说明
下面结合附图和实例对本发明进一步的说明。
图 1是冷转移印花机的预缩装置示意图。
图 2是图 1的俯视图。
图中所示
1.脱针辊 2.导布棍 3.网带传动辊 4.网带
5.磨辊 6.网带张紧辊 7.加压辊 8.分丝辊
9.挤水辊 10.三角辊 11.承压辊 12.张力架气缸 13.张力辊 14.张紧辊 15.提升电机 16.扩幅辊
17.网带传动电机 18.扩幅电机 19.承压辊电机 20.角位 移传感器
21.压紧电机 22.橡胶毯 23.被印织物 具体实施方式
以下是根据本实用新型并结合附图说明的一实施例， 这是一 种冷转移印花机上用的预缩装置。 但是， 本实用新型不限于所述 的实施例， 本领域技术人员可以在本实用新型的构思和权力要求 限定保护范围内进行各种改型。
实施例： 冷转移印花机的预缩装置见图 1和图 2所示， 依次由网带输 送机构、扩幅调节机构、橡毯预缩机构和张力调节机构连接构成， 并位于冷转移印花机的输布装置和转印装置之间。 其中：
橡毯预缩机构： 采用纺织工业中印染通用的预缩单机， 经改 进后和冷转移印花机配合连接。 在机架的左右墙板上通过轴承座 连接承压辊 11及三角辊 10; 在机架左右墙板的滑槽中还通过轴 承座连接加压辊 7、挤水辊 9及.张紧辊 14; 另有一环形橡胶毯 22 包绕连接加压辊 7、 挤水辊 9、 三角辊 10和张紧辊 14， 环形橡胶 毯的外周面和承压辊 11的部分圆周面接触连接，构成橡毯预缩机 构。 所述承压辊 11是和承压辊电机 19传动连接，承压辊 11是转 动运动的。 所述加压辊 7的轴承座经连接臂及丝杆和压紧电机 21 连接， 当压紧电机工作时， 经连接臂及丝杆和轴承座啮合， 可推 动加压辊 7在滑槽内移动。 所述挤水辊 9两端的轴承座分别和左 右的气缸顶端连接， 通过左右两气缸的伸缩作用， 并在环形橡胶 毯外周相应的承压辊作用下，使挤水辊 9对环形橡胶毯 22产生挤 压。所述张紧辊 14两端的轴承座分别经连接臂及丝杆和左右两提 升电机 15连接， 当左右两提升电机 15同时作用时， 经连接臂及 丝杆和轴承座啮合，并推动张紧辊 14在滑槽内移动，用来张紧环 形橡胶毯 22; 当左右两提升电机 15中的一个提升电机作用时， 则推动张紧辊 14的一轴端在滑槽内移动，对环形橡胶毯起调偏纠 正作用。 此外， 橡毯预缩机构还包括磨辊 5、 喷淋管和接水盘等 零部件共同组成。
网带输送机构： 由网带传动辊 3和网带张紧辊 6及包绕连接 在该两辊圆周面上的环形网带 4和托带共同构成。 所述网带输送 机构的网带传动辊 3经链传动和网带传动电机 17传动连接，所述 网带传动电机 17 为冷转移印花机输布装置中的针板链拉幅同步 传动电机。
扩幅调节机构： 由左右为两圆盘的轴架， 并通过两圆盘的中 心轴转动连接在左右墙板上， 两圆盘中心轴的一端和手轮调节器 连接， 两圆盘间转动连接两根分丝辊 8， 两根分丝辊 8由缠绕不 锈钢丝的金属辊组成， 并由驱动电机传动连接， 共同构成扩幅调 节机构；
张力控制机构： 由一端固定在左右墙板上的两连杆， 该两连 杆的另一端和一张力棍 13连接， 张力棍 13为铝合金组成； 两连 杆的中部和张力架气缸 12顶端连接，并在任一连杆和墙板转动连 接处连接一角位移传感器 20， 角位移传感器 20采用电位器式传 感器； 共同构成张力控制机构。
被印织物的加工路线是这样的： 被印织物先从冷转移印花机 输布装置的脱针辊 1上脱下， 经导布棍 2后被送入网带输送机构 的环形网带 4的上面， 经环形网带 4传送到扩幅调节机构的两分 丝辊 8包绕并扩幅后， 就进入了橡毯预缩机构， 再经环形橡胶毯 22和承压辊 11 间的受压收缩作用后， 最后通过张力控制机构的 张力辊 13，在设定的张力下通过张力辊 13，送入冷转移印花机转 印装置的扩幅辊 16后和转印纸复合一起进人转印装置进行转印。

Claims

1. 一种冷转移印花机的预缩装置， 包括在机架的左右墙板上 通过轴承座连接的承压辊（ 11 )及三角辊（ 10 )， 所述承压辊和承 压辊电机（19 )传动连接； 并在机架左右墙板的滑槽中通过轴承 座连接的加压辊（7 )、 挤水辊（9 )及张紧辊（14 )， 所述加压辊 的轴承座经连接臂及丝杆和压紧电机（21 )连接， 所述挤水辊两 端的轴承座分别和左右的气缸顶端连接， 所述张紧辊两端的轴承 座分别经连接臂及丝杆和左右两提升电机（15 )连接； 另有一环 形橡胶毯（22 ) 包绕连接加压辊、 挤水辊、 三角辊和张紧辊， 环 形橡胶毯的外周面和承压辊的部分圆周面接触连接， 构成橡毯预 缩机构， 其特征是：
所述预缩装置还包括网带输送机构、 扩幅调节机构和张力控 制机构；
所述网带输送机构由网带传动辊（3 )和网带张紧辊（6 )及 包绕连接在该两辊圆周面上的环形网带 （4 )和托带共同构成； 所述扩幅调节机构由左右为两圆盘的轴架， 并通过两圆盘的 中心轴转动连接在左右墙板上， 两圆盘中心轴的一端和手轮调节 器连接， 两圆盘间转动连接两根分丝辊 8， 分丝辊由驱动电机传 动连接， 共同构成扩幅调节机构；
所述张力控制机构由一端固定在左右墙板上的两连杆， 该两 连杆的另一端和一张力棍（13 )连接， 两连杆的中部和张力架气 缸（12 )顶端连接， 并在任一连杆和墙板转动连接处连接一角位 移传感器（20 )， 共同构成张力控制机构。
2. 如权利要求 1所述冷转移印花机的预缩装置， 其特征是： 所述冷转移印花机的预缩装置依次由网带输送机构、 扩幅调 节机构、 橡毯预缩机构和张力调节机构连接构成， 并位于冷转移 印花机的输布装置和转印装置之间。
3. 如权利要求 1所述冷转移印花机的预缩装置， 其特征是： 所述网带输送机构的网带传动辊经链传动和网带传动电机
( 17 )传动连接， 所述网带传动电机为冷转移印花机输布装置中的 针板链拉幅同步传动电机。
4. 如权利要求 1所述冷转移印花机的预缩装置， 其特征是： 所述扩幅调节机构的两根分丝辊（8 )由缠绕不锈钢丝的金属 辊组成。
5. 如权利要求 1所述冷转移印花机的预缩装置， 其特征是： 所述张力控制机构的张力棍为铝合金棍； 所述角位移传感器 采用电位器式传感器。
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