WO2008095442A1

WO2008095442A1 - A winding shaft and a printer using the same

Info

Publication number: WO2008095442A1
Application number: PCT/CN2008/070220
Authority: WO
Inventors: Lei Zheng; Zhenxing Zhao
Original assignee: Shandong New Beiyang Information Technology Co., Ltd.
Priority date: 2007-02-06
Filing date: 2008-01-31
Publication date: 2008-08-14
Also published as: CN101239679A; CN101239679B

Abstract

A shaft and a printer using the same. The shaft consists of a medium positioning member (100), a group of arms (200), and a member supporting the arm (300). The positioning member is provided with a fixing hole (101) in its central section. The arms group consists of a plurality of arms, one end of which connects to the positioning member, and the other end is suspended. The connecting position, at which the arm connects to the positioning member, is outside of the fixing hole. The supporting member contacts with the arms group in the case that the supporting member engages with the positioning member through the fixing hole. It may remove easily the medium winding the shaft by using the said winding shaft. By comparing with the art, the winding shaft, that has simple structure, can be disassembled and assembled conveniently.

Description

一种卷绕轴和使用该卷绕轴的打印机本申请要求于 2007年 2月 6日提交中国专利局、申请号为 200710003547.7、发明名称为"一种卷绕轴和使用该卷绕轴的打印机"的中国专利申请的优先权，其全部内容通过引用结合在本申请中。技术领域 A winding shaft and a printer using the same The present application is filed on February 6, 2007, the Chinese Patent Office, the application number is 200710003547.7, and the invention is entitled "A winding shaft and a printer using the winding shaft" The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference. Technical field

本发明涉及一种卷绕轴和使用该卷绕轴的打印机，该卷绕轴用于在其上面卷绕一种记录介质如账单之类。背景技术 The present invention relates to a winding shaft and a printer using the same, which is used for winding a recording medium such as a bill thereon. Background technique

在商场、专卖店或超市等领域的收银台，通常使用多联复写记录纸在具有卷绕机构的打印机上打印账单。所打印的多联账单，客户联提供顾客作为交易凭证，存根联通过打印机卷绕机构卷取保留，作为商家的销售存根，用于库存管理。常用的打印机，在记录纸卷绕在卷绕轴上后，需要从卷绕轴移出，但是经常出现因为记录纸卷得很紧而不容易移出的情况。 At the checkout counter in the field of shopping malls, specialty stores, or supermarkets, the multi-replication recording paper is usually used to print the bill on a printer having a winding mechanism. The printed multi-bill, the customer provides the customer as the transaction voucher, and the stub is revolved through the printer winding mechanism as the sales stub of the merchant for inventory management. A commonly used printer needs to be removed from the winding shaft after the recording paper is wound on the winding shaft, but it often occurs because the recording paper is tightly wound and is not easily removed.

为了解决上述问题，中国专利 98119210.6公开了一种卷绕轴以及一种使用该卷绕轴的打印机，所述卷绕轴包括一个卷绕轴部分、一个支承-移出部件和一弹簧件；其中，所述卷绕轴部分用于绕其卷绕所述记录介质；所述支承- 移出部件设置在所述卷绕轴部分上并可以在第一位置和第二位置之间移动，所述第一位置被设置成超出所述卷绕轴部分的外周边，而所述第二位置设置成比所述第一位置更靠近所述卷绕轴部分的轴线；所述弹簧件用以朝所述第一位置压迫所述支承 -移出部件。当卷绕在卷绕部分周围的记录介质沿给定方向移动，支承-移出部件由于用于拉出记录介质的外力而从第一位置移到第二位置 , 由此减小记录介质的卷绕直径，结果，使围绕卷绕部分卷绕的最内周面记录介质从卷绕部分的外周面浮起，最内周面的记录介质相对于卷绕部分的外周面放松，如此可使记录介质容易地移出，同时保持从卷绕轴出来的卷状。 In order to solve the above problem, Chinese Patent No. 98119210.6 discloses a winding shaft and a printer using the same, the winding shaft including a winding shaft portion, a support-removing member and a spring member; The winding shaft portion is for winding the recording medium therearound; the support-removing member is disposed on the winding shaft portion and movable between a first position and a second position, the first a position that is disposed beyond an outer periphery of the winding shaft portion, and the second position is disposed closer to an axis of the winding shaft portion than the first position; the spring member is configured to face the first A position compresses the support-removal member. When the recording medium wound around the winding portion moves in a given direction, the support-removal member moves from the first position to the second position due to an external force for pulling out the recording medium, thereby reducing the winding of the recording medium As a result, as a result, the innermost peripheral recording medium wound around the winding portion is floated from the outer peripheral surface of the winding portion, and the recording medium of the innermost peripheral surface is relaxed with respect to the outer peripheral surface of the wound portion, so that the recording medium can be made It is easily removed while maintaining the roll shape from the winding shaft.

上述方法虽然解决了卷绕轴上缠绕的记录介质不便移出的问题，但是，卷绕轴的支承-移出部件结构复杂，使用的零件较多，制作和装配工艺较为复杂，增加了加工和装配成本。发明内容 Although the above method solves the problem that the recording medium wound on the winding shaft is inconvenient to be removed, the structure of the support-removal member of the winding shaft is complicated, and many parts are used, and the manufacturing and assembly processes are complicated. Increased processing and assembly costs. Summary of the invention

有鉴于此，本发明的目的在于提供一种取纸方便的卷绕轴和使用该卷绕轴的打印机。与现有技术相比，本发明结构简单，加工或装配成本低。 In view of the above, an object of the present invention is to provide a winding shaft which is convenient for picking up a paper and a printer using the same. Compared with the prior art, the invention has a simple structure and a low processing or assembly cost.

本发明公开了一种卷绕轴，用于卷绕记录介质，所述卷绕轴由介质定位部件、悬臂组及悬臂支撑部件组成； The invention discloses a winding shaft for winding a recording medium, and the winding shaft is composed of a medium positioning member, a cantilever group and a cantilever supporting member;

所述介质定位部件中部设置有固定孔，所述悬臂组由若干悬臂组成，所述悬臂一端连接在所述介质定位部件，所述悬臂另一端悬空，所述悬臂与所述介质定位部件的连接位置在所述固定孔外侧边沿； A fixing hole is disposed in a middle portion of the medium positioning component, the cantilever group is composed of a plurality of cantilevers, one end of the cantilever is connected to the medium positioning component, and the other end of the cantilever is suspended, and the cantilever is connected with the medium positioning component. Positioned on the outer edge of the fixing hole;

所述悬臂支撑部件通过所述固定孔与所述介质定位部件相适配时，所述悬臂支撑部件与所述悬臂相接触。 The cantilever support member is in contact with the cantilever when the cantilever support member is fitted to the medium positioning member through the fixing hole.

优选的，所述悬臂组包含第一悬臂组，所述第一悬臂组中的悬臂外侧设置有若干凸台。 Preferably, the cantilever group includes a first cantilever group, and a plurality of bosses are disposed outside the cantilever in the first cantilever group.

优选的，所述悬臂组包含第一悬臂组，所述第一悬臂组中的悬臂内侧设置楔状凸台。 Preferably, the cantilever group includes a first cantilever group, and a wedge-shaped boss is disposed inside the cantilever in the first cantilever group.

优选的，所述悬臂的悬空的一端向轴线方向倾斜。 Preferably, one end of the suspension of the cantilever is inclined in the axial direction.

优选的，所述悬壁支撑部件设置有扇形槽。 Preferably, the hanging wall supporting member is provided with a sector groove.

本发明还公开了另一种卷绕轴，用于卷绕记录介质，所述卷绕轴由介质定位部件、悬臂组及悬臂支撑部件组成； The present invention also discloses another winding shaft for winding a recording medium, the winding shaft being composed of a medium positioning member, a cantilever group and a cantilever supporting member;

所述介质定位部件中部设置有固定轴，所述悬臂组由若干悬臂组成，所述悬臂一端连接在所述介质定位部件，所述悬臂另一端悬空，所述悬臂与所述介质定位部件的连接位置在所述固定轴外侧 , 并且与所述固定轴存在空隙；所述悬臂支撑部件与所述固定轴相适配，当该悬臂支撑部件套接在所述固定轴上时，该悬臂支撑部件与所述悬臂组接触。 A fixed shaft is disposed in a middle portion of the medium positioning component, the cantilever group is composed of a plurality of cantilevers, one end of the cantilever is connected to the medium positioning component, and the other end of the cantilever is suspended, and the cantilever is connected with the medium positioning component. Positioning outside the fixed shaft and having a gap with the fixed shaft; the cantilever support member is adapted to the fixed shaft, and the cantilever support member is when the cantilever support member is sleeved on the fixed shaft Contact with the cantilever set.

优选的，所述固定轴设置有扇形槽。 Preferably, the fixed shaft is provided with a sector groove.

优选的，所述悬臂支撑部件设置至少一个卡槽，与所述介质定位部件相卡接。 Preferably, the cantilever supporting member is provided with at least one card slot and is engaged with the medium positioning member.

本发明还公开了一种打印机，所述打印机包括打印机主体、卷绕轴、卷绕轴支撑机构和卷绕轴传动机构，所述卷绕轴架设在卷绕轴支撑机构上，所述卷绕轴由介质定位部件、悬臂组及悬臂支撑部件组成； The invention also discloses a printer comprising a printer body, a winding shaft, and a winding a shaft supporting mechanism and a winding shaft transmission mechanism, wherein the winding shaft is disposed on a winding shaft supporting mechanism, wherein the winding shaft is composed of a medium positioning member, a cantilever group and a cantilever supporting member;

所述悬臂支撑部件与所述固定孔相适配，使所述悬臂支撑部件可穿过所述固定孔。 The cantilever support member is adapted to the fixing hole such that the cantilever support member can pass through the fixing hole.

所述介质定位部件或所述悬臂支撑部件设置有传动部件，所述传动部件与所述卷绕轴传动机构相适配。 The medium positioning member or the cantilever support member is provided with a transmission member that is adapted to the winding shaft transmission mechanism.

优选的，所述悬臂支撑部件上设置有扇形槽。 Preferably, the cantilever supporting member is provided with a fan-shaped groove.

本发明同时还公开了一种打印机，所述打印机包括打印机主体、卷绕轴、卷绕轴支撑机构和卷绕轴传动机构，所述卷绕轴架设在卷绕轴支撑机构上，所述卷绕轴由介质定位部件、悬臂组及悬臂支撑部件组成； The invention also discloses a printer, the printer comprising a printer body, a winding shaft, a winding shaft support mechanism and a winding shaft transmission mechanism, the winding shaft being erected on the winding shaft support mechanism, the volume The winding shaft is composed of a medium positioning component, a cantilever group and a cantilever supporting component;

所述介质定位部件中部设置有固定轴，所述悬臂组由若干悬臂组成，所述悬臂一端连接在所述介质定位部件，所述悬臂另一端悬空，所述悬臂与所述介质定位部件的连接位置在所述固定轴外侧 , 并且与所述固定轴存在空隙；所述悬臂支撑部件与所述固定轴相适配，其套接在所述固定轴上，并与所述悬臂组接触； A fixed shaft is disposed in a middle portion of the medium positioning component, the cantilever group is composed of a plurality of cantilevers, one end of the cantilever is connected to the medium positioning component, and the other end of the cantilever is suspended, and the cantilever is connected with the medium positioning component. Positioning outside the fixed shaft, and having a gap with the fixed shaft; the cantilever supporting member is adapted to the fixed shaft, and is sleeved on the fixed shaft and is in contact with the cantilever group;

所述介质定位部件设置有与所述卷绕轴传动机构相适配的传动部件。优选的，所述固定轴设置有扇形槽。 The medium positioning member is provided with a transmission member that is adapted to the winding shaft transmission mechanism. Preferably, the fixed shaft is provided with a sector groove.

通过上述技术方案可知，本发明实施例利用悬臂在失去悬臂支撑部件的支撑时有向轴向倾斜的性质，轻松、方便地将缠绕在轴上的记录介质取下，并且无需结构复杂的部件，与现有技术相比，具有结构简单，拆卸和装配工艺简单的特点。附图说明 According to the above technical solution, the embodiment of the present invention utilizes the property that the cantilever has an axial inclination when the support of the cantilever support member is lost, and the recording medium wound on the shaft is easily and conveniently removed, and Compared with the prior art, it has the characteristics of simple structure, simple disassembly and assembly process, and no complicated structure. DRAWINGS

图 1为本发明一种卷绕轴的实施例一结构示意图； 1 is a schematic structural view of a first embodiment of a winding shaft according to the present invention;

图 2为本发明一种卷绕轴的工作状态示意图； 2 is a schematic view showing the working state of a winding shaft according to the present invention;

图 3为本发明一种卷绕轴的实施例二的结构图； 3 is a structural view of a second embodiment of a winding shaft according to the present invention;

图 4为本发明一种卷绕轴的实施例二的平面图； Figure 4 is a plan view showing a second embodiment of a winding shaft of the present invention;

图 5为本发明一种卷绕轴中悬臂支撑部件的结构示意图 Figure 5 is a schematic view showing the structure of a cantilever supporting member in a winding shaft according to the present invention;

图 6为本发明一种卷绕轴的实施例三的结构图； Figure 6 is a structural view showing a third embodiment of a winding shaft of the present invention;

图 7为本发明一种卷绕轴的实施例三的平面图； Figure 7 is a plan view showing a third embodiment of a winding shaft of the present invention;

图 8为本发明一种卷绕轴的实施例四的结构图； Figure 8 is a structural view showing a fourth embodiment of a winding shaft of the present invention;

图 9为本发明一种卷绕轴的实施例四的平面图； Figure 9 is a plan view showing a fourth embodiment of a winding shaft of the present invention;

图 10为本发明一种卷绕轴的实施例五的示意图； Figure 10 is a schematic view showing a fifth embodiment of a winding shaft of the present invention;

图 11为本发明一种卷绕轴的实施例六的悬臂支撑部件的结构示意图；图 12为本发明一种卷绕轴的实施例六在第二安装状态下的结构示意图；图 13为本发明一种卷绕轴的实施例六在第三安装状态下的结构示意图；图 14为本发明一种卷绕轴的结构框图； 11 is a schematic structural view of a cantilever supporting member of a sixth embodiment of a winding shaft according to the present invention; FIG. 12 is a schematic structural view of a sixth embodiment of a winding shaft in a second mounting state; A structural diagram of a sixth embodiment of a winding shaft in a third mounted state; FIG. 14 is a structural block diagram of a winding shaft of the present invention;

图 15为本发明一种卷绕轴的固定轴的结构示意图； Figure 15 is a schematic structural view of a fixed shaft of a winding shaft according to the present invention;

图 16为本发明一种打印机的结构图； Figure 16 is a structural view of a printer of the present invention;

图 17为本发明一种打印机的卷绕轴的结构示意图； 17 is a schematic structural view of a winding shaft of a printer according to the present invention;

图 18为本发明一种打印机的卷绕轴的工作示意图； Figure 18 is a schematic view showing the operation of a winding shaft of a printer according to the present invention;

图 19为本发明一种打印机的实施例二卷绕轴的结构示意图； 19 is a schematic structural view of a winding shaft of a second embodiment of a printer according to the present invention;

图 20为本发明打印机实施例三的卷绕轴的示意图； Figure 20 is a schematic view of a winding shaft of a third embodiment of the printer of the present invention;

图 21为本发明打印机实施例三的卷绕轴的平面图； Figure 21 is a plan view showing a winding shaft of a third embodiment of the printer of the present invention;

图 22为本发明打印机中的卷绕轴的悬臂支撑部件的结构图； Figure 22 is a structural view showing a cantilever supporting member of a winding shaft in the printer of the present invention;

图 23为本发明打印机实施例四的卷绕轴的平面图； Figure 23 is a plan view showing the winding shaft of the fourth embodiment of the printer of the present invention;

图 24为本发明打印机实施例四的卷绕轴的结构示意图； Figure 24 is a schematic structural view of a winding shaft of a fourth embodiment of the printer of the present invention;

图 25为本发明打印机实施例五的卷绕轴的结构示意图；图 26为本发明打印机实施例五的卷绕轴的平面图； Figure 25 is a schematic structural view of a winding shaft of a fifth embodiment of the printer of the present invention; Figure 26 is a plan view showing a winding shaft of a fifth embodiment of the printer of the present invention;

图 27为本发明打印机实施例六的卷绕轴的结构示意图； Figure 27 is a schematic structural view of a winding shaft of a sixth embodiment of the printer of the present invention;

图 28为本发明一种打印机的装配示意图； 28 is a schematic view showing the assembly of a printer of the present invention;

图 29为本发明一种打印机中卷绕轴的结构示意图； 29 is a schematic structural view of a winding shaft in a printer according to the present invention;

图 30为本发明一种打印机实施例中卷绕轴的固定轴的结构示意图。具体实施方式 Figure 30 is a schematic view showing the structure of a fixed shaft of a winding shaft in an embodiment of the printer of the present invention. detailed description

在商场、专卖店或超市等领域的收银台，通常使用多联复写记录纸在具有卷绕机构的打印机上打印账单。常用的打印机，在记录纸卷绕在卷绕轴上后，需要从卷绕轴移出，但是经常出现因为记录纸卷得 4艮紧而不容易移出的情况。 At the checkout counter in the field of shopping malls, specialty stores, or supermarkets, the multi-replication recording paper is usually used to print the bill on a printer having a winding mechanism. A commonly used printer needs to be removed from the winding shaft after the recording paper is wound on the winding shaft, but it often occurs because the recording paper roll is too tight and cannot be easily removed.

中国专利 98119210.6公开的技术方案虽然解决了卷绕轴上缠绕的记录介质不便移出的问题，但是，卷绕轴的支承-移出部件结构复杂，使用的零件较多，制作和装配工艺较为复杂，增加了加工和装配成本。并且，由于支承-移出部件位置固定，当打印介质宽度不能覆盖支承-移出部件时，支承-移出部件无法发挥作用，记录介质缠绕后取下困难。因此，上述方法不能适应不同宽度的打印介质。 The technical solution disclosed in Chinese Patent No. 98119210.6 solves the problem that the recording medium wound on the winding shaft is inconvenient to be removed. However, the structure of the support-removal member of the winding shaft is complicated, and many parts are used, and the manufacturing and assembly processes are complicated, and the addition is complicated. Processing and assembly costs. Further, since the position of the support-removal member is fixed, when the width of the printing medium cannot cover the supporting-removing member, the supporting-removing member cannot function, and it is difficult to remove the recording medium after winding. Therefore, the above method cannot accommodate printing media of different widths.

请参考图 1 , 为本发明一种卷绕轴的实施例一结构示意图。 Please refer to FIG. 1 , which is a structural schematic view of a first embodiment of a winding shaft according to the present invention.

所述卷绕轴由介质定位部件 100、悬臂组 200及悬臂支撑部件 300组成。所述介质定位部件 100中部设置有固定孔 101，所述悬臂组 200由若干悬臂 201组成，所述悬臂 201—端连接在所述介质定位部件 100，所述悬臂 201 另一端悬空，所述悬臂 201与所述介质定位部件 100的连接位置在所述固定孔 101外侧边沿；所述悬臂支撑部件 300与所述固定孔 101相适配，使所述悬臂支撑部件 300可穿过所述固定孔 101，并与所述介质定位部件 100相适配。 The winding shaft is composed of a medium positioning member 100, a cantilever group 200, and a cantilever support member 300. A fixing hole 101 is disposed in a middle portion of the medium positioning component 100. The cantilever group 200 is composed of a plurality of cantilevers 201. The cantilever 201 is connected to the medium positioning component 100, and the other end of the cantilever 201 is suspended. a connection position of the 201 to the medium positioning member 100 is at an outer edge of the fixing hole 101; the cantilever supporting member 300 is adapted to the fixing hole 101, so that the cantilever supporting member 300 can pass through the fixing hole 101, and is adapted to the medium positioning component 100.

在工作时，所述悬臂支撑部件 300与所述固定孔 101 配套，所述悬臂组 200中的全部悬臂或部分悬臂与所述悬臂支撑部件 300的外周面接触，如图 2 所示，为本发明一种卷绕轴的工作状态示意图；所述卷绕轴转动，以使得记录介质缠绕在悬臂组 200上；当所述记录介质卷取完成后，所述卷绕轴的悬臂组 200和悬臂支撑部件 300分离，这时，失去悬臂支撑部件 300支撑的悬臂组 200 处于悬空状态，有向轴线倾斜的趋势，用一外力径向挤压所述记录介质，悬臂组 200中的悬臂 201悬空一端向轴线倾斜，使得所述记录介质最内周变得松弛，从而使得所述记录介质与所述悬臂组 200之间产生间隙，如此，缠绕后的记录介质便可方便、轻松地从所述悬臂组 200上取下。 In operation, the cantilever support member 300 is matched with the fixing hole 101, and all cantilever or partial cantilever in the cantilever group 200 is in contact with the outer peripheral surface of the cantilever support member 300, as shown in FIG. A schematic diagram of an operating state of a winding shaft; the winding shaft is rotated to cause a recording medium to be wound on the cantilever assembly 200; and after the winding of the recording medium is completed, the cantilever assembly 200 and the cantilever of the winding shaft The support member 300 is separated. At this time, the cantilever group 200 which is supported by the cantilever support member 300 is in a suspended state, has a tendency to incline toward the axis, and radially presses the recording medium with an external force, the cantilever The hanging end of the cantilever 201 in the group 200 is inclined toward the axis such that the innermost circumference of the recording medium becomes slack, so that a gap is formed between the recording medium and the cantilever group 200, so that the wound recording medium can be It is conveniently and easily removed from the cantilever set 200.

请参考图 3和图 4, 图 3为本发明一种卷绕轴的实施例二的结构图；图 4 为本发明一种卷绕轴的实施例二的平面图；如图所示，所述固定孔 101为蝶形孔，所述蝶形孔包括圆弧组，所述圆弧组包括第一圆弧组 1011和第二圆弧组 1012,所述第一圆弧组 1011的圆弧的半径大于所述第二圆弧组 1012的圆弧的半径，所述悬臂组 200由第一悬臂组 211和第二悬臂组 212组成，所述第一悬臂组 211和第二悬臂组 212均由一对对称悬臂组成，所述第一悬臂组 211和第二悬臂组 212中的各悬臂到中轴线的距离均相等，所述第一悬臂组 211对应蝶形孔的第一圆弧组 1011，所述第二悬臂组 212对应蝶形孔的第二圆弧组 1012，所述悬臂支撑部件 300上设置有第一对称扇形槽（扇形槽 311和扇形槽 311， )，以及,所述悬臂支撑部件 300包含第一扇形支撑面 312和第二扇形支撑面 312，，在所述卷绕轴处于工作状态时，所述悬臂支撑部件 300通过所述蝶形孔和所述悬臂组 200中的第一悬臂组 211相接触，所述扇形槽 311和扇形槽 311，对应于第二圆弧组 1012, 并且，所述扇形槽 311和扇形槽 311，与所述第二圆弧 1012 的圆弧之间存在空隙 400, 由此，可减小所述悬臂支撑部件 300与所述悬臂组 200中第一悬臂组 211之间的接触面积，从而可减小装配、拆卸卷绕轴时悬臂支撑部件 300和悬臂组 200之间的摩擦力，使得所述卷绕轴的悬臂组 200可以较轻松、方便地与所述悬臂支撑部件 300分离，此结构同时还可以减少材料，节约成本。 3 and FIG. 4, FIG. 3 is a structural view of a second embodiment of a winding shaft according to the present invention; FIG. 4 is a plan view showing a second embodiment of the winding shaft of the present invention; The fixing hole 101 is a butterfly hole, the butterfly hole includes a circular arc group, and the circular arc group includes a first circular arc group 1011 and a second circular arc group 1012, and the circular arc of the first circular arc group 1011 The radius of the circular arc is greater than the radius of the circular arc of the second circular arc group 1012. The cantilever assembly 200 is composed of a first cantilever group 211 and a second cantilever group 212, and the first cantilever group 211 and the second cantilever group 212 are both a pair of symmetric cantilevers, the distance between each of the first cantilever group 211 and the second cantilever group 212 is equal to the central axis, and the first cantilever group 211 corresponds to the first arc group 1011 of the butterfly hole, The second cantilever group 212 corresponds to a second arc group 1012 of a butterfly hole, and the cantilever support member 300 is provided with a first symmetric sector groove (a sector groove 311 and a sector groove 311,), and the cantilever support The component 300 includes a first sector support surface 312 and a second sector support surface 312, in the volume When the winding shaft is in an operating state, the cantilever supporting member 300 is in contact with the first cantilever group 211 in the cantilever group 200 through the butterfly hole, and the sector groove 311 and the sector groove 311 correspond to the second circle. The arc group 1012, and the gap between the fan-shaped groove 311 and the sector groove 311 and the arc of the second circular arc 1012, thereby reducing the cantilever support member 300 and the cantilever group The contact area between the first cantilever groups 211 in 200, thereby reducing the friction between the cantilever support member 300 and the cantilever assembly 200 when assembling and disassembling the winding shaft, so that the cantilever assembly 200 of the winding shaft can be compared It is easily and conveniently separated from the cantilever support member 300, and the structure can also reduce materials and save costs.

为了进一步减小装配、拆卸卷绕轴时悬臂支撑部件 300和悬臂组 200中悬壁之间的摩擦力，可以将所述第一扇形支撑面 312和第二扇形支撑面 312，设计成间隔的肋状，如此，可以减小悬臂支撑部件 300与悬臂组 200中第一悬臂组 211 中悬臂之间的接触面积，从而减小装配、拆卸卷绕轴时悬臂支撑部件 300 和悬臂组 200之间的摩擦力，进而使得所述移动机构 200可以更轻松、方便地与所述悬臂支撑部件 300分离，如图 5所示，为本发明一种卷绕轴中悬臂支撑部件 300的结构示意图，此结构使得材料使用进一步减少，更大程度上节约成本。为了使记录介质更容易从悬臂上取下，可以在所述第一悬臂组 211的悬臂外侧设置若干凸台 213 , 如图 6和图 7所示，其中，图 6为本发明一种卷绕轴的实施例三的结构图，图 7为本发明一种卷绕轴的实施例三的平面图；所述凸台 213的宽度 a小于所述第一悬臂组 211中的悬臂的宽度 A (最好约为所述悬臂宽度的三分之一，即 A=3a ), 使得缠绕在悬壁上的记录介质与所述第一悬臂组 211中悬臂的接触面积减小，从而减小从所述悬臂取下所述记录介质时的摩擦力，进而使所述记录介质可以更容易从悬臂上被取下。 In order to further reduce the friction between the cantilever support member 300 and the cantilever wall in the cantilever assembly 200 when assembling and disassembling the winding shaft, the first sector support surface 312 and the second sector support surface 312 may be designed to be spaced apart. Ribs, as such, the contact area between the cantilever support member 300 and the cantilever in the first cantilever set 211 of the cantilever assembly 200 can be reduced, thereby reducing the space between the cantilever support member 300 and the cantilever assembly 200 when assembling and disassembling the winding shaft The frictional force further makes the moving mechanism 200 more easily and conveniently separated from the cantilever support member 300. As shown in FIG. 5, it is a schematic structural view of the cantilever support member 300 in the winding shaft of the present invention. The structure allows for further reductions in material use and greater cost savings. In order to make the recording medium easier to remove from the cantilever, a plurality of bosses 213 may be disposed outside the cantilever of the first cantilever group 211, as shown in FIG. 6 and FIG. 7, wherein FIG. 6 is a winding of the present invention. FIG. 7 is a plan view of a third embodiment of the winding shaft of the present invention; the width a of the boss 213 is smaller than the width A of the cantilever in the first cantilever group 211 (the most Preferably, about one-third of the width of the cantilever, that is, A=3a), such that the contact area of the recording medium wound on the cantilever wall with the cantilever in the first cantilever group 211 is reduced, thereby reducing The frictional force when the cantilever is removed from the recording medium allows the recording medium to be more easily removed from the cantilever.

请参考图 8和图 9，图 8为本发明一种卷绕轴的实施例四的结构图，图 9 为本发明一种卷绕轴的实施例四的平面图。 8 and FIG. 9, FIG. 8 is a structural view of a fourth embodiment of a winding shaft according to the present invention, and FIG. 9 is a plan view showing a fourth embodiment of the winding shaft of the present invention.

在第一悬臂组 211的悬臂内侧设置楔状凸台 214, 所述楔状凸台 214的宽度 b小于所述第一悬臂组 211中悬臂的宽度 A (最优的，所述楔状凸台 214的宽度 b为所述第一悬臂组 211的悬臂宽度 A的三分之一，即 A=3b), 由此使得所述悬臂支撑部件 300与悬臂组 200中的第一悬臂组 211中的悬臂之间的接触面积减小，从而减小装配、拆卸时所述悬臂组 200 和所述悬臂支撑部件 300 之间的阻力，进而能够较轻松、方便地将所述悬臂组 200与所述悬臂支撑部件 300相分离。 A wedge-shaped boss 214 is disposed inside the cantilever of the first cantilever group 211, and the width b of the wedge-shaped boss 214 is smaller than the width A of the cantilever in the first cantilever group 211 (optimally, the width of the wedge-shaped boss 214 b is one-third of the cantilever width A of the first cantilever group 211, that is, A = 3b), thereby causing the cantilever support member 300 to be between the cantilever in the first cantilever group 211 in the cantilever group 200 The contact area is reduced, thereby reducing the resistance between the cantilever assembly 200 and the cantilever support member 300 during assembly and disassembly, thereby enabling the cantilever assembly 200 and the cantilever support member 300 to be more easily and conveniently Phase separation.

g殳所述第一悬臂组 211中的悬臂的悬空端 2111与所述悬臂组 200的中心轴之间的距离为 R, 所述第一悬臂组 211 中的悬臂连接所述介质固定部件 100的一端与所述悬臂组 200的中心轴线之间的距离为 r，则由于设置了楔状凸台 214,使得 r稍小于 R,所以当卷绕轴处于工作状态时，悬臂支撑部件 300 轴向向外挤压所述第一悬臂组 211中的悬臂，所述第一悬臂组 211中的悬臂由于受到了所述悬臂支撑部件 300的挤压，发生了形变，使得所述悬臂的悬空端 2111内侧距离所述悬臂组 200的中心轴线的距离 r增大为 R，当所述卷绕轴完成对记录介质的缠绕之后，将卷绕轴从打印机中取出，在将所述悬臂组 200 与所述悬臂支撑部件 300分离时，由于失去悬臂支撑部件 300的的支撑，所述第一悬臂组 211中的悬臂从形变状态恢复原状，使得缠绕在悬臂组 200上的记录介质的最内周的发生松弛，在与所述悬臂组 200之间产生空隙，从而使得所述记录介质可以容易地从所述第一悬臂组 211和第二悬臂组 212上取下。 The distance between the suspended end 2111 of the cantilever in the first cantilever group 211 and the central axis of the cantilever group 200 is R, and the cantilever in the first cantilever group 211 is connected to the medium fixing member 100. The distance between one end and the central axis of the cantilever set 200 is r, and since the wedge-shaped boss 214 is provided such that r is slightly smaller than R, the cantilever support member 300 is axially outward when the winding shaft is in the working state. Squeezing the cantilever in the first cantilever group 211, the cantilever in the first cantilever group 211 is deformed by the cantilever support member 300, so that the inner side of the cantilevered end 2111 The distance r of the central axis of the cantilever set 200 is increased to R, and after the winding shaft completes the winding of the recording medium, the winding shaft is taken out of the printer, and the cantilever set 200 and the cantilever are When the support member 300 is separated, the cantilever in the first cantilever group 211 is restored from the deformed state due to the loss of the support of the cantilever support member 300, so that the innermost circumference of the recording medium wound on the cantilever group 200 The slack occurs, creating a gap between the cantilever set 200, so that the recording medium can be easily removed from the first cantilever set 211 and the second cantilever set 212.

为了缠绕的记录介质可以轻松、方便地从悬臂组 200上取下，还可以将所述悬臂组 200中的第一悬臂组 211中的悬臂以一定的倾斜角度与所述介质定位部件 100相连，第一悬臂组 211中的悬臂悬空一端稍向所述悬臂组 200的轴线倾斜，如图 10所示，为本发明一种卷绕轴的实施例五的示意图，当所述卷绕轴处于工作状态时，所述悬臂组 200的第一悬臂组 211受到所述悬臂支撑部件 300的挤压，而使得悬臂发生形变，其悬空端与轴线的距离增大，其形状如图 10中的虚线部分所示，当所述记录介质完成卷取后，在将所述悬臂组 200与所述悬臂支撑部件 300分离时，由于悬臂支撑部件 300的挤压，所述第一悬臂组 211中的悬臂从形变状态恢复原状，使得缠绕在其上面的记录介质的最内周松弛，在与所述悬臂组 200之间产生空隙，于是，可以很轻松、方便地将所述记录介质从所述悬臂组 200上取下。本实例结构简单、容易装配和拆卸。 The entangled recording medium can be easily and conveniently removed from the cantilever set 200, and can also be The cantilever in the first cantilever group 211 in the cantilever group 200 is connected to the medium positioning member 100 at a certain inclination angle, and the cantilever suspension end in the first cantilever group 211 is slightly inclined toward the axis of the cantilever group 200, such as 10 is a schematic view showing a fifth embodiment of a winding shaft of the present invention, when the winding shaft is in an operating state, the first cantilever group 211 of the cantilever assembly 200 is subjected to the cantilever supporting member 300. Extrusion, such that the cantilever is deformed, the distance between the suspended end and the axis is increased, and its shape is as shown by the broken line portion in FIG. 10, and after the recording medium is completed, the cantilever group 200 is When the cantilever support member 300 is separated, the cantilever in the first cantilever group 211 is restored from the deformed state due to the pressing of the cantilever support member 300, so that the innermost circumference of the recording medium wound thereon is relaxed. A gap is formed between the cantilever groups 200, so that the recording medium can be easily and conveniently removed from the cantilever assembly 200. This example is simple in structure and easy to assemble and disassemble.

以上实施例中，悬臂组可以包括一个或多个悬臂。 In the above embodiments, the cantilever set may include one or more cantilevers.

所述固定孔 101用于与所述悬臂支撑部件 300配合，其的形状不限于蝶形 , 还可以是矩形、方形或其他形状。 The fixing hole 101 is for engaging with the cantilever supporting member 300, and its shape is not limited to a butterfly shape, and may be a rectangular shape, a square shape or the like.

所述介质定位部件 100可以为一个法兰盘，或剖面为任意形状（如方形、三角形、多边形或其他形状）的盘，用于在缠绕记录介质时，限制所述记录介质的位置，使得所述记录介质的卷取的形状规则。 The medium positioning member 100 may be a flange, or a disk having an arbitrary shape (such as a square, a triangle, a polygon, or the like) in cross section, for limiting the position of the recording medium when the recording medium is wound, so that The shape rule of the winding of the recording medium.

需要说明的是，上述实施例二到实施例五中，在悬臂支撑部件 300上还设置有第一定位面 321、第一"" ^槽 322和第二卡槽 323 , 请参考图 11 , 所述第一卡槽 321、第二卡槽 322和第一定位面 323平行。 It should be noted that, in the second embodiment to the fifth embodiment, the first positioning surface 321 , the first "" slot 322 and the second slot 323 are further disposed on the cantilever supporting member 300. Referring to FIG. 11 , The first card slot 321 and the second card slot 322 are parallel to the first positioning surface 323.

所述卷绕轴存在三种安装状态，在第一种安装状态时，介质定位部件 100 外表面与上述第一定位面 321 相接触。在第二种安装状态时，介质定位部件 100***所述第一"" Nl 322，如图 12所示。在第三种安装状态时，介质定位部件 100***所述第二卡槽 323，如图 13所示。 The winding shaft has three mounting states, and in the first mounting state, the outer surface of the medium positioning member 100 is in contact with the first positioning surface 321 described above. In the second installation state, the media positioning member 100 is inserted into the first "" Nl 322, as shown in FIG. In the third mounting state, the media positioning member 100 is inserted into the second card slot 323 as shown in FIG.

支设在第一、二和第三种安装状态时，悬臂支撑部件 300的有效长度（悬臂支撑部件 300没有设置传动部件的一端端面距离介质定位部件 100表面的长度）分别为 Ll、 L2和 L3 , 则 L1< L2< L3。用户可以根据打印介质的宽度，通过调整所述介质定位部件 100在所述悬臂支撑部件 300上的安装位置，调节相对应的悬臂支撑部件有效长度。 When the first, second and third mounting states are supported, the effective length of the cantilever support member 300 (the length of the end surface of the cantilever support member 300 where the transmission member is not disposed from the surface of the medium positioning member 100) is L1, L2, and L3, respectively. , then L1 < L2 < L3. The user can adjust the effective length of the corresponding cantilever support member by adjusting the mounting position of the medium positioning member 100 on the cantilever support member 300 according to the width of the print medium.

本发明实施例与现有技术相比，结构简单，便于装配和拆卸，成本低。并且，由于记录介质是缠绕在悬臂组 200上的，在取纸时，所述记录介质与悬臂组整体从支撑机构上分离，可以适应不同宽度的记录介质。 Compared with the prior art, the embodiment of the invention has a simple structure, is easy to assemble and disassemble, and has low cost. and Moreover, since the recording medium is wound around the cantilever group 200, the recording medium and the cantilever group are integrally separated from the supporting mechanism at the time of paper taking, and can accommodate recording media of different widths.

本发明实施例还公开另一种卷绕轴，用于卷绕记录介质，如图 14所示，为本发明一种卷绕轴的结构框图，所述卷绕轴由介质定位部件 10、悬臂组 20 及悬臂支撑部件 30组成；所述介质定位部件 10中部设置有固定轴 11 , 所述悬臂组 20由若干悬臂组成，所述悬臂一端连接在所述介质定位部件 10, 所述悬臂另一端悬空，所述悬臂与所述介质定位部件 10的连接位置在所述固定轴 11外侧，并且与所述固定轴 11存在空隙；所述悬臂支撑部件 30与所述固定轴 11相适配，并套接在所述固定轴 11上，与所述悬臂组 20接触。 Another embodiment of the present invention discloses a winding shaft for winding a recording medium. As shown in FIG. 14 , it is a structural block diagram of a winding shaft according to the present invention. The winding shaft is composed of a medium positioning member 10 and a cantilever. The group 20 and the cantilever support member 30 are formed; a middle portion of the medium positioning member 10 is provided with a fixed shaft 11 , the cantilever group 20 is composed of a plurality of cantilevers, one end of the cantilever is connected to the medium positioning member 10, and the other end of the cantilever Suspended, a connection position of the cantilever to the medium positioning member 10 is outside the fixed shaft 11, and there is a gap with the fixed shaft 11; the cantilever support member 30 is adapted to the fixed shaft 11, and The sleeve is sleeved on the fixed shaft 11 and is in contact with the cantilever group 20.

在工作时，所述悬臂支撑部件 30为一套筒，其与所述固定轴 11配套，其外表面与所述悬臂组 20中的全部悬臂或部分悬臂与所述悬臂接触，所述卷绕轴转动，以使得记录介质缠绕在悬臂组 20上；当所述记录介质卷取完成后，所述卷绕轴的悬臂组 20和悬臂支撑部件 30分离，这时，失去悬臂支撑部件 30支撑的悬臂组 20处于悬空状态，有向轴线倾斜的趋势，用一外力径向挤压所述记录介质，悬臂组 20中的悬臂悬空一端向轴线倾斜，使得所述记录介质最内周变得松弛，从而使得所述记录介质与所述悬臂组 20之间产生间隙，如此，缠绕后的记录介质便可方便、轻松地从所述悬臂组 20上取下。 In operation, the cantilever support member 30 is a sleeve that is matched with the fixed shaft 11 and whose outer surface and all cantilever or partial cantilever in the cantilever group 20 are in contact with the cantilever, the winding The shaft is rotated so that the recording medium is wound on the cantilever group 20; when the recording medium is taken up, the cantilever group 20 of the winding shaft and the cantilever support member 30 are separated, at which time the support of the cantilever support member 30 is lost. The cantilever group 20 is in a suspended state, and has a tendency to incline toward the axis. The recording medium is radially pressed by an external force, and one end of the cantilever suspension in the cantilever group 20 is inclined toward the axis, so that the innermost circumference of the recording medium becomes slack. Thereby, a gap is formed between the recording medium and the cantilever group 20, so that the wound recording medium can be easily and easily removed from the cantilever group 20.

请参考图 15所示，为本发明一种卷绕轴的实施例固定轴的结构示意图；所述固定轴 11由一对扇形槽（扇形槽 12和扇形槽 12，）和一对扇形支撑面（扇形支撑面 13和扇形支撑面 13， )组成，并将所述扇形支撑面 13和扇形支撑面 13，设计成肋状结构，以减小悬臂支撑部件 30与所述固定轴 11之间的接触面积，从而可减小悬臂支撑部件 30与所述固定轴 11之间的摩擦力，使所述悬臂支撑部件 30可以较为轻松地与悬臂组 20以及固定轴 11分离。 Please refer to FIG. 15 , which is a schematic structural view of a fixed shaft of an embodiment of a winding shaft according to the present invention; the fixed shaft 11 is composed of a pair of fan-shaped grooves (fan-shaped grooves 12 and sector-shaped grooves 12 ) and a pair of fan-shaped supporting surfaces. The scalloped support surface 13 and the sector-shaped support surface 13 are formed, and the scalloped support surface 13 and the sector-shaped support surface 13 are designed as rib structures to reduce the space between the cantilever support member 30 and the fixed shaft 11. The contact area is such that the friction between the cantilever support member 30 and the fixed shaft 11 can be reduced, so that the cantilever support member 30 can be more easily separated from the cantilever set 20 and the fixed shaft 11.

本发明实施例还公开一种打印机，请参考图 16和图 17所示，图 16为本发明一种打印机的结构图，图 17为本发明一种打印机的卷绕轴的结构示意图；如图中所示，所述打印机包括打印机主体 50、卷绕轴 60、卷绕轴支撑机构 70 和卷绕轴传动机构 80, 所述卷绕轴 60架设在卷绕轴支撑机构 70上，所述卷绕轴 60由介质定位部件 610、悬臂组 620及悬臂支撑部件 630组成。 The embodiment of the present invention further discloses a printer. Please refer to FIG. 16 and FIG. 17. FIG. 16 is a structural diagram of a printer according to the present invention, and FIG. 17 is a schematic structural view of a winding shaft of the printer according to the present invention; As shown in the above, the printer includes a printer main body 50, a winding shaft 60, a winding shaft support mechanism 70, and a winding shaft transmission mechanism 80. The winding shaft 60 is erected on the winding shaft support mechanism 70, the roll The winding shaft 60 is composed of a medium positioning member 610, a cantilever group 620, and a cantilever support member 630.

在所述介质定位部件 610中部设置有固定孔 611，所述悬臂组 620由若干悬臂组成，所述悬臂一端连接在所述介质定位部件 610,所述悬臂另一端悬空，所述悬臂与所述介质定位部件 610的连接位置在所述固定孔 611外侧边沿；所述悬臂支撑部件 630与所述固定孔 611相适配，使所述悬臂支撑部件 630可穿过所述固定孔 611。 A fixing hole 611 is disposed in a middle of the medium positioning component 610, and the cantilever group 620 is provided by a plurality of a cantilever is formed, one end of the cantilever is connected to the medium positioning member 610, and the other end of the cantilever is suspended, and a connection position of the cantilever with the medium positioning member 610 is at an outer edge of the fixing hole 611; the cantilever supporting member The fixing hole 611 is fitted to the fixing hole 611 so that the cantilever supporting member 630 can pass through the fixing hole 611.

所述介质定位部件 610设置有传动部件 90, 所述传动部件 90与所述卷绕轴传动机构 80相适配。 The media positioning member 610 is provided with a transmission member 90 that is adapted to the winding shaft drive mechanism 80.

在工作时，所述悬臂支撑部件 630穿过所述固定孔 611 , 所述悬臂组 620 中的全部悬臂或部分悬臂与所述悬臂支撑部件 630外周面接触，所述卷绕轴传动机构 80通过所述传动部件使所述卷绕轴 60转动，以使得记录介质缠绕在悬臂组 620上。 In operation, the cantilever support member 630 passes through the fixing hole 611, and all cantilever or partial cantilever in the cantilever group 620 is in contact with the outer peripheral surface of the cantilever support member 630, and the winding shaft transmission mechanism 80 passes The transmission member rotates the winding shaft 60 so that the recording medium is wound around the cantilever group 620.

所述传动部件 90—般情况下为一个齿轮，一般情况下将其设置在悬臂支撑部件 630的一端，所述传动部件 90与所述卷绕轴传动机构 80的传动轮 81 相配合，在所述卷绕轴传动机构 80的驱动轮 81 的带动下，带动整个卷绕轴 60转动，缠绕打印机主体 50容纸机构 51 中的记录介质 511 , 所述记录介质 511在打印机主体 50的送纸结构的作用下，记录介质 511的客户联沿 D方向输出打印机，记录介质 511 中的存根联沿 E方向被卷绕轴 60卷取，如图 18 所示，为本发明一种打印机的卷绕轴的工作示意图；当所述记录介质 511卷取完成后，操作者将所述卷绕轴 60取下，将所述卷绕轴 60的悬臂支撑部件 630 从所述介质定位部件 610的固定孔 611中移出，这时，失去悬臂支撑部件 630 支撑的悬臂组 620处于悬空状态，有向轴线倾斜的趋势，用一外力径向挤压所述记录介质 511 , 悬臂组 620悬空一端向轴线倾斜，使得所述记录介质 511最内周变得松弛，从而使得所述记录介质 511与所述悬臂组 620之间产生间隙，如此，缠绕后的记录介质 511便可方便、轻松地从所述悬臂组 620上取下。 The transmission member 90 is generally a gear, which is generally disposed at one end of the cantilever support member 630, and the transmission member 90 cooperates with the transmission wheel 81 of the winding shaft transmission mechanism 80. Under the driving of the driving wheel 81 of the winding shaft transmission mechanism 80, the entire winding shaft 60 is rotated to wrap around the recording medium 511 in the paper-receiving mechanism 51 of the printer main body 50, and the recording medium 511 is in the paper feeding structure of the printer main body 50. The user of the recording medium 511 outputs the printer in the D direction, and the stub in the recording medium 511 is taken up by the winding shaft 60 in the E direction. As shown in FIG. 18, the winding axis of the printer of the present invention is shown. Schematic diagram of the operation; after the winding of the recording medium 511 is completed, the operator removes the winding shaft 60, and the cantilever supporting member 630 of the winding shaft 60 is fixed from the fixing hole 611 of the medium positioning member 610. When the medium is removed, at this time, the cantilever group 620 which is supported by the cantilever supporting member 630 is in a suspended state, and has a tendency to incline toward the axis, and the recording medium is radially pressed by an external force. 11 , the hanging end of the cantilever group 620 is inclined toward the axis such that the innermost circumference of the recording medium 511 becomes slack, so that a gap is formed between the recording medium 511 and the cantilever group 620, and thus, the wound recording medium 511 It can be easily and easily removed from the cantilever set 620.

所述传动部件 90可设置在介质定位机构的 610的一侧，如图 19所示，为本发明一种打印机的实施例二的卷绕轴的结构示意图；所述传动部件 90与所述卷绕轴传动机构 80的传动轮 81相配合，在所述卷绕轴传动机构 80的驱动轮 81的带动下，带动整个卷绕轴 60转动，缠绕记录介质 511。 The transmission member 90 may be disposed at one side of the medium positioning mechanism 610, as shown in FIG. 19, which is a schematic structural view of the winding shaft of the second embodiment of the printer of the present invention; the transmission member 90 and the volume The drive wheel 81 of the shaft drive mechanism 80 is engaged, and the drive shaft 81 of the winding shaft drive mechanism 80 drives the entire winding shaft 60 to rotate, and the recording medium 511 is wound.

本打印机中的卷绕轴的结构可以如图 20和 21所示，图 20为本发明打印机实施例三的卷绕轴的示意图，图 21为该卷绕轴的平面图；如图所示，所述卷绕轴 60中，固定孔 611为蝶形孔，所述蝶形孔包括圆弧组，所述圆弧组包括第一圆弧组 612和第二圆弧组 613，所述第一圆弧组 612的圆弧的半径大于所述第二圆弧组 613的圆弧的半径，所述悬臂组 620由第一悬臂组 621和第二悬臂组 622组成，所述第一悬臂组 621和第二悬臂组 622均由一对对称悬臂组成，所述第一悬臂组 621中悬臂的宽度小于所述第二悬臂组 622中的悬臂，所述第一悬臂组 621和第二悬臂组 622中的各悬臂到轴线的距离均相等，所述第一悬臂组 621对应蝶形孔的第一圆弧组 612, 所述第二悬臂组 622对应蝶形孔的第二圆弧组 613 , 所述悬臂支撑部件 630上设置有第一对称扇形槽（扇形槽 631和扇形槽 631，），以及，所述悬臂支撑部件 630还包含第一扇形支撑面 632 和第二扇形支撑面 632，，在所述卷绕轴处于工作状态时，所述悬臂支撑部件 630通过所述蝶形孔和所述介质定位部件 610套接，所述扇形槽 631和扇形槽 631，对应于第二圆弧组 622中的圆弧，并且，所述扇形槽 631和扇形槽 631，与所述第二圆弧组 622的圆弧之间存在空隙 01 , 由此，可减小所述悬臂支撑部件 630与所述悬臂组 620中悬臂之间的接触面积，从而可减小装配、拆卸卷绕轴时悬臂支撑部件 630和悬臂组 620中悬臂之间的摩擦力 ,使得所述卷绕轴 60的悬臂支撑部件 630可以较轻松、方便地从所述固定孔 611 中移出，此结构同时还可以减少材料，节约成本。 The structure of the winding shaft in the printer can be as shown in Figs. 20 and 21, Figure 20 is a schematic view of the winding shaft of the third embodiment of the printer of the present invention, and Figure 21 is a plan view of the winding shaft; Description In the winding shaft 60, the fixing hole 611 is a butterfly hole, the butterfly hole includes a circular arc group, and the circular arc group includes a first circular arc group 612 and a second circular arc group 613, the first circular arc The radius of the arc of the group 612 is larger than the radius of the arc of the second arc group 613, and the cantilever group 620 is composed of a first cantilever group 621 and a second cantilever group 622, the first cantilever group 621 and the The two cantilever sets 622 are each composed of a pair of symmetric cantilevers. The width of the cantilever in the first cantilever set 621 is smaller than the cantilever in the second cantilever set 622, and the first cantilever set 621 and the second cantilever set 622 The distance between each cantilever and the axis is equal, the first cantilever group 621 corresponds to the first arc group 612 of the butterfly hole, and the second cantilever group 622 corresponds to the second arc group 613 of the butterfly hole, the cantilever The support member 630 is provided with a first symmetric sector groove (the sector groove 631 and the sector groove 631), and the cantilever support member 630 further includes a first sector support surface 632 and a second sector support surface 632, The cantilever support member 630 passes through the butterfly hole and the medium when the winding shaft is in an operating state The position member 610 is sleeved, the sector groove 631 and the sector groove 631 correspond to an arc in the second arc group 622, and the sector groove 631 and the sector groove 631, and the second arc group 622 There is a gap 01 between the arcs, thereby reducing the contact area between the cantilever support member 630 and the cantilever in the cantilever group 620, thereby reducing the cantilever support member 630 when assembling and disassembling the winding shaft. The friction between the cantilever in the cantilever assembly 620 allows the cantilever support member 630 of the winding shaft 60 to be removed from the fixing hole 611 more easily and conveniently. This structure also reduces material and saves cost.

为了进一步减小装配、拆卸卷绕轴时悬臂支撑部件 630和悬臂组 620中悬臂之间的摩擦力，本发明实施例的卷绕轴 60的形状还可以如图 22所示，所述第一扇形支撑面 632和第二扇形支撑面 632，为肋状结构，如此，可以减小悬臂支撑部件 630和悬臂组 620中悬臂之间的接触面积，从而减小装配、拆卸卷绕轴时悬臂支撑部件 630和悬臂组 620之间的摩擦力，进而使得所述卷绕轴 60 的悬臂支撑部件 630可以较轻松、方便地从所述固定孔 611中移出，此结构使得材料使用进一步减少 , 更大程度上节约成本。 In order to further reduce the friction between the cantilever support member 630 and the cantilever in the cantilever assembly 620 when assembling and disassembling the winding shaft, the shape of the winding shaft 60 of the embodiment of the present invention may also be as shown in FIG. 22, the first The fan-shaped support surface 632 and the second sector-shaped support surface 632 are rib-like structures, so that the contact area between the cantilever support member 630 and the cantilever of the cantilever group 620 can be reduced, thereby reducing the cantilever support when assembling and disassembling the winding shaft. The friction between the member 630 and the cantilever set 620, which in turn allows the cantilever support member 630 of the winding shaft 60 to be removed from the fixing hole 611 more easily and conveniently, this structure allows further reduction in material use, and greater To a certain extent, cost savings.

为了使记录介质更容易从悬臂上取下，本发明一种打印机的卷绕轴可以如图 23和图 24所示，在所述卷绕轴中，所述第一悬臂组 621的悬臂外侧设置有若干凸台 623 , 所述凸台 623的宽度 a小于所述第一悬臂组 621中的悬臂的宽度 A (最好约为所述悬臂宽度的三分之一，即 A=3a ), 使得缠绕在悬壁上的记录介质与所述第一悬臂组 621中悬臂的接触面积减小，从而减小从所述悬臂取下所述记录介质时的摩擦力，进而使所述记录介质可以更容易从悬臂上被取下。 In order to make the recording medium easier to remove from the cantilever, the winding shaft of a printer of the present invention may be as shown in FIGS. 23 and 24, in which the outer side of the cantilever of the first cantilever group 621 is disposed. a plurality of bosses 623 having a width a smaller than a width A of the cantilever in the first cantilever group 621 (preferably about one third of the cantilever width, ie, A=3a), such that The contact area of the recording medium wound on the cantilever wall with the cantilever in the first cantilever group 621 is reduced, thereby reducing the distance from the cantilever The frictional force at the time of recording the medium, in turn, makes the recording medium easier to remove from the cantilever.

本发明一种打印机的卷绕轴还可以如图 25和图 26所示的结构形状：所述第一悬臂组 621的悬臂内侧设置有楔状凸台 624, 所述楔状凸台 624 的宽度 b小于所述第一悬臂组 621中悬臂的宽度 A (最优的，所述楔状凸台 624 的宽度 b为所述第一悬臂组 621的悬臂宽度 A的三分之一，即 A=3b), 由此使得所述悬臂支撑部件 630和悬臂组 620的第一悬臂组 621中的悬臂之间的接触面积减小，从而减小装配、拆卸时所述悬臂支撑部件 630和悬臂组 620之间的阻力，进而能够较轻松、方便地将所述悬臂支撑部件 630从所述介质定位部件 610中的固定孔 611中移出。 The winding shaft of the printer of the present invention may further have the structural shape as shown in FIG. 25 and FIG. 26: the inner side of the cantilever of the first cantilever group 621 is provided with a wedge-shaped boss 624, and the width b of the wedge-shaped boss 624 is smaller than The width A of the cantilever in the first cantilever group 621 (optimally, the width b of the wedge-shaped boss 624 is one-third of the cantilever width A of the first cantilever group 621, that is, A=3b), Thereby, the contact area between the cantilever support member 630 and the cantilever in the first cantilever group 621 of the cantilever group 620 is reduced, thereby reducing the space between the cantilever support member 630 and the cantilever group 620 during assembly and disassembly. The resistance, in turn, makes it easier and convenient to remove the cantilever support member 630 from the fixing hole 611 in the medium positioning member 610.

g殳所述第一悬臂组 621中的悬臂的悬空端 6211与中心轴之间的距离为 R, 所述第一悬臂组 621中的悬臂连接所述介质定位部件 610的一端与中心轴之间的距离为 r, 则由于设置了楔状凸台 624, 使得 r稍小于 R, 所以当卷绕轴 60处于工作状态时，悬臂支撑部件 630轴向向外挤压所述第一悬臂组 621 中的悬臂，所述第一悬臂组 621中的悬臂由于受到了所述悬臂支撑部件 630的挤压，使得所述悬臂的悬空端 6211 内侧距离中心轴的距离 r增大为 R, 当所述卷绕轴 60完成对记录介质的缠绕之后，将卷绕轴 60从打印机中取出，在将所述悬臂支撑部件 630从所述介质定位部件 610中的固定孔 611中移出时，由于失去悬臂支撑部件 630的支撑，所述第一悬臂组 621中的悬臂从形变状态恢复原状，使得缠绕在悬臂组上的记录介质的最内周的发生松弛，在与所述悬臂组之间产生空隙，从而使得所述记录介质可以容易地从所述第一悬臂组 621和第二悬臂组 622上取下。 The distance between the suspended end 6211 of the cantilever in the first cantilever group 621 and the central axis is R, and the cantilever in the first cantilever group 621 is connected between one end of the medium positioning member 610 and the central axis The distance r is, since the wedge-shaped boss 624 is disposed such that r is slightly smaller than R, when the winding shaft 60 is in the working state, the cantilever supporting member 630 axially outwardly presses the first cantilever group 621 a cantilever, the cantilever in the first cantilever group 621 is pressed by the cantilever supporting member 630, so that the distance r inside the hanging end 6211 of the cantilever from the central axis is increased to R, when the winding After the shaft 60 completes the winding of the recording medium, the winding shaft 60 is taken out of the printer, and when the cantilever support member 630 is removed from the fixing hole 611 in the medium positioning member 610, the cantilever support member 630 is lost. Supporting, the cantilever in the first cantilever group 621 is restored from the deformed state, so that the innermost circumference of the recording medium wound on the cantilever group is slackened, and a gap is generated between the cantilever group and the cantilever group. Such that the recording medium can be easily removed from the first boom 621 and the second set of suspension arms 622.

为了缠绕的记录介质可以轻松、方便地从悬臂组上取下，本发明实施例的卷绕轴形状还可以如图 27所示，所述悬臂组中的第一悬臂组 621中的悬臂以一定的倾斜角度与所述介质定位部件 611相连，第一悬臂组 621中的悬臂悬空一端稍向中轴线倾斜，当所述卷绕轴 60处于工作状态时，所述悬臂组 620中的第一悬臂组 621受到所述悬臂支撑部件 630的挤压，而使得悬臂发生形变，其悬空端与轴线的距离增大，当所述记录介质完成 «又后，将所述悬臂支撑部件 630从所述介质定位部件 610中的固定孔 611中移出时，由于失去悬臂支撑部件 630的支撑，所述第一悬臂组 621中的悬臂从形变状态恢复原状，使得缠绕在其上面的记录介质的最内周松弛，在与所述悬臂组之间产生空隙，于是，可以很轻松、方便地将所述记录介质从所述悬臂组上取下。本实例结构简单、容易装配和拆卸。 The winding axis of the embodiment of the present invention can also be removed from the cantilever assembly. The winding shaft shape of the embodiment of the present invention can also be as shown in FIG. 27, and the cantilever in the first cantilever group 621 in the cantilever group is fixed. The angle of inclination is connected to the medium positioning member 611. The cantilever suspension end in the first cantilever group 621 is slightly inclined toward the central axis. When the winding shaft 60 is in the working state, the first cantilever in the cantilever group 620 The group 621 is pressed by the cantilever support member 630 such that the cantilever is deformed, and the distance between the suspended end and the axis is increased, and when the recording medium is completed, the cantilever support member 630 is removed from the medium. When the fixing hole 611 in the positioning member 610 is removed, the cantilever support is lost Supporting the member 630, the cantilever in the first cantilever group 621 is restored from the deformed state, so that the innermost circumference of the recording medium wound thereon is relaxed, and a gap is generated between the cantilever group and the The recording medium is easily and conveniently removed from the cantilever set. This example is simple in structure and easy to assemble and disassemble.

以上实施例中，卷绕轴的悬臂组可以包括一个或多个悬臂。 In the above embodiments, the cantilever set of the winding shaft may include one or more cantilevers.

所述固定孔 611用于与悬臂支撑部件 630配合，其的形状不限于蝶形，还可以是矩形、方形或其他形状。 The fixing hole 611 is for engaging with the cantilever supporting member 630, and its shape is not limited to a butterfly shape, and may be a rectangular shape, a square shape or the like.

所述传动部件 90可以是一个齿轮或其他部件，只要是能与打印机的传动机构相配合（可以在打印机的传动机构的带动下转动），都属于本发明规定的范畴。 The transmission member 90 can be a gear or other component as long as it can cooperate with the transmission mechanism of the printer (which can be rotated by the transmission mechanism of the printer), and is within the scope of the present invention.

所述介质定位部件 610可以为一个法兰盘，或剖面为任意形状（如方形、三角形、多边形或其他形状）的盘，用于在缠绕记录介质时，限制所述记录介质的位置，使得所述记录介质的卷取的形状规则。 The medium positioning member 610 may be a flange, or a disk having an arbitrary shape (such as a square, a triangle, a polygon, or the like) in cross section, for limiting the position of the recording medium when the recording medium is wound, so that The shape rule of the winding of the recording medium.

需要说明的是，通过调节介质定位部件 100在所述悬臂支撑部件 300上的安装位置，从而调节悬臂支撑部件 300有效长度，以适应不同宽度的介质。具体结构在上述本发明一种卷绕轴的实施例部分有详细描述，在此不再赞述。 It is to be noted that the effective length of the cantilever support member 300 is adjusted by adjusting the mounting position of the medium positioning member 100 on the cantilever support member 300 to accommodate media of different widths. The specific structure is described in detail in the embodiment of a winding shaft of the present invention described above, and will not be further described herein.

与现有技术相比，由于无需结构复杂的辅助性部件（如支承-移出部件），结构简单，拆卸和装配工艺简单，成本低。并且，由于记录介质是缠绕在悬臂组 620上的，可以适应不同宽度的记录介质。 Compared with the prior art, since the auxiliary components (such as the support-removal components) having complicated structures are not required, the structure is simple, the disassembly and assembly process is simple, and the cost is low. Also, since the recording medium is wound around the cantilever group 620, it is possible to accommodate recording media of different widths.

请参考图 28和图 29，图 28为本发明一种打印机的装配示意图，图 29为本发明一种打印机中卷绕轴的结构示意图。 Referring to Figures 28 and 29, Figure 28 is a schematic view showing the assembly of a printer according to the present invention, and Figure 29 is a schematic view showing the structure of a winding shaft in a printer of the present invention.

本发明实施例同时公开了另外一种打印机，所述打印机包括打印机主体 1010、卷绕轴 1020、卷绕轴支撑机构 1030和卷绕轴传动机构 1040, 所述卷绕轴 1020架设在卷绕轴支撑机构 1030上，所述卷绕轴 1020 由介质定位部件 1021、悬臂组 1022及悬臂支撑部件 1023组成；所述介质定位部件 1021中部设置有固定轴 1024, 所述悬臂组 1022由若干悬臂组成，所述悬臂一端连接在所述介质定位部件 1021 , 所述悬臂另一端悬空，所述悬臂与所述介质定位部件 1021的连接位置在所述固定轴 1024外侧；所述悬臂支撑部件 1023与所述固定轴 1024相适配，其套接在所述固定轴 1024上，并与所述悬臂组 1022接触。 Another embodiment of the present invention also discloses a printer, which includes a printer body 1010, a winding shaft 1020, a winding shaft support mechanism 1030, and a winding shaft transmission mechanism 1040. The winding shaft 1020 is erected on the winding shaft. The support mechanism 1030, the winding shaft 1020 is composed of a medium positioning member 1021, a cantilever group 1022 and a cantilever support member 1023; a central portion of the medium positioning member 1021 is provided with a fixed shaft 1024, and the cantilever group 1022 is composed of a plurality of cantilevers. One end of the cantilever is connected to the medium positioning component 1021, and the other end of the cantilever is suspended. The connection position of the cantilever and the medium positioning component 1021 is outside the fixed axis 1024; the cantilever supporting component 1023 and the The fixed shaft 1024 is adapted to be sleeved on the fixed shaft 1024 and connected to the cantilever group 1022 Touch.

所述固定轴 1024的一端设置有传动部件 1025，其通常为一齿轮，所述传动部件与所述卷绕轴传动机构 1040中的传动轮 1041啮合。 One end of the fixed shaft 1024 is provided with a transmission member 1025, which is generally a gear, and the transmission member meshes with the transmission wheel 1041 of the winding shaft transmission mechanism 1040.

在工作时，所述悬臂支撑部件 1023套在所述固定轴 1024上，其外表面与所述悬臂组 1022中的全部悬臂或部分悬臂与所述悬臂支撑部件 1023外周面接触，所述卷绕轴传动机构 1040通过所述传动部件 1025使所述卷绕轴 1020转动，以使得记录介质缠绕在悬臂组 1022上。 In operation, the cantilever support member 1023 is sleeved on the fixed shaft 1024, and the outer surface thereof and all the cantilever or partial cantilever in the cantilever group 1022 are in contact with the outer peripheral surface of the cantilever support member 1023, the winding The shaft transmission mechanism 1040 rotates the winding shaft 1020 by the transmission member 1025 so that the recording medium is wound around the cantilever group 1022.

为了进一步减小装配、拆卸卷绕轴时悬臂支撑部件 1023 和悬臂组 1022 中悬臂之间的摩擦力，本发明实施例的固定轴的形状还可以如图 30所示，其由一对扇形槽 1026及一对扇形支撑面 1027组成，所述扇形支撑面 1027为肋状结构，如此结构可以减小悬臂支撑部件 1023和悬臂组 1022中悬臂之间的接触面积，从而减小装配、拆卸卷绕轴时悬臂支撑部件 1023和悬臂组 1022之间的摩擦力，进而使得所述卷绕轴 60的悬臂支撑部件 1023可以较轻松、方便地与所述固定轴 1024分离，此结构使得材料使用进一步减少，更大程度上节约成本。 In order to further reduce the friction between the cantilever support member 1023 and the cantilever in the cantilever assembly 1022 when assembling and disassembling the winding shaft, the shape of the fixed shaft of the embodiment of the present invention can also be as shown in FIG. 1026 and a pair of sector-shaped support surfaces 1027, the sector-shaped support surface 1027 is a rib-like structure, such a structure can reduce the contact area between the cantilever support member 1023 and the cantilever of the cantilever group 1022, thereby reducing assembly, disassembly and winding. The friction between the axle cantilever support member 1023 and the cantilever assembly 1022, which in turn allows the cantilever support member 1023 of the winding shaft 60 to be separated from the fixed shaft 1024 more easily and conveniently, which further reduces material usage. , to a greater degree of cost savings.

以上公开的仅为本发明的优选实施方式，但本发明并非局限于此，任何本领域的技术人员能思之的没有创造性的变化，以及在不脱离本发明原理前提下所作的若干改进和润饰，都应落在本发明的保护范围内。 The above disclosure is only a preferred embodiment of the present invention, but the present invention is not limited thereto, and any modifications and refinements made by those skilled in the art can be made without departing from the principles of the present invention. All should fall within the scope of protection of the present invention.

Claims

权利要求 Rights request

1、一种卷绕轴，用于卷绕记录介质，其特征在于，所述卷绕轴由介质定位部件、悬臂组及悬臂支撑部件组成； A winding shaft for winding a recording medium, characterized in that the winding shaft is composed of a medium positioning member, a cantilever group and a cantilever supporting member;

所述悬臂支撑部件通过所述固定孔与所述介质定位部件相适配时，所述悬臂支撑部件与所述悬臂组接触。 The cantilever support member is in contact with the cantilever set when the cantilever support member is fitted to the medium positioning member through the fixing hole.

2、如权利要求 1所述的卷绕轴，其特征在于，所述悬臂组包含第一悬臂组，所述第一悬臂组中的悬臂外侧设置有若干凸台。 2. The winding shaft according to claim 1, wherein the cantilever group comprises a first cantilever group, and a plurality of bosses are disposed outside the cantilever in the first cantilever group.

3、如权利要求 1所述的卷绕轴，其特征在于，所述悬臂组包含第一悬臂组，所述第一悬臂组中的悬臂内侧设置楔状凸台。 The winding shaft according to claim 1, wherein the cantilever group includes a first cantilever group, and a wedge-shaped boss is disposed inside the cantilever in the first cantilever group.

4、如权利要求 1所述的卷绕轴，其特征在于，所述悬臂的悬空的一端向轴线方向倾斜。 The winding shaft according to claim 1, wherein one end of the suspension of the cantilever is inclined in the axial direction.

5、如权利要求 1-4任意一项所述的卷绕轴，其特征在于，所述悬壁支撑部件设置有扇形槽。 The winding shaft according to any one of claims 1 to 4, wherein the hanging wall supporting member is provided with a sector groove.

6、如权利要求 5所述的卷绕轴，其特征在于，所述悬臂支撑部件设置至少一个卡槽，与所述介质定位部件相卡接。 The winding shaft according to claim 5, wherein the cantilever supporting member is provided with at least one card slot and is engaged with the medium positioning member.

7、一种卷绕轴，用于卷绕记录介质，其特征在于，所述卷绕轴由介质定位部件、悬臂组及悬臂支撑部件组成； A winding shaft for winding a recording medium, wherein the winding shaft is composed of a medium positioning member, a cantilever group, and a cantilever supporting member;

所述介质定位部件中部设置有固定轴，所述悬臂组由若干悬臂组成，所述悬臂一端连接在所述介质定位部件，所述悬臂另一端悬空，所述悬臂与所述介质定位部件的连接位置在所述固定轴外侧 , 并且与所述固定轴存在空隙； A fixed shaft is disposed in a middle portion of the medium positioning component, the cantilever group is composed of a plurality of cantilevers, one end of the cantilever is connected to the medium positioning component, and the other end of the cantilever is suspended, and the cantilever is connected with the medium positioning component. Positioning outside the fixed shaft and having a gap with the fixed shaft;

所述悬臂支撑部件与所述固定轴相适配，其套接在所述固定轴上，并与所述悬臂组接触。 The cantilever support member is adapted to the fixed shaft and is sleeved on the fixed shaft and is in contact with the cantilever assembly.

8、如权利要求 7所述的卷绕轴，其特征在于，所述固定轴设置有扇形槽。 8. The winding shaft according to claim 7, wherein the fixed shaft is provided with a sector groove.

9、一种打印机，所述打印机包括打印机主体、卷绕轴、卷绕轴支撑机构和卷绕轴传动机构，其特征在于，所述卷绕轴架设在卷绕轴支撑机构上，所述卷绕轴由介质定位部件、悬臂组及悬臂支撑部件组成；所述介质定位部件中部设置有固定孔，所述悬臂组由若干悬臂组成，所述悬臂一端连接在所述介质定位部件，所述悬臂另一端悬空，所述悬臂与所述介质定位部件的连接位置在所述固定孔外侧边沿； 9. A printer, comprising: a printer body, a winding shaft, a winding shaft support mechanism, and a winding shaft transmission mechanism, wherein the winding shaft is erected on a winding shaft support mechanism, the roll The winding shaft is composed of a medium positioning component, a cantilever group and a cantilever supporting component; A fixing hole is disposed in a middle portion of the medium positioning component, the cantilever group is composed of a plurality of cantilevers, one end of the cantilever is connected to the medium positioning component, and the other end of the cantilever is suspended, and the cantilever is connected with the medium positioning component. Positioned on the outer edge of the fixing hole;

所述悬臂支撑部件与所述固定孔相适配，使所述悬臂支撑部件可穿过所述固定孔； The cantilever supporting member is adapted to the fixing hole, so that the cantilever supporting member can pass through the fixing hole;

10、如权利要求 9所述的打印机，其特征在于，所述悬臂组包含第一悬臂组，所述第一悬臂组中的悬臂外侧设置有若干凸台。 10. The printer according to claim 9, wherein the cantilever group includes a first cantilever group, and a plurality of bosses are disposed outside the cantilever in the first cantilever group.

11、如权利要求 9所述的打印机，其特征在于，所述悬臂组包含第一悬臂组，所述第一悬臂组中的悬臂内侧设置楔状凸台。 11. The printer according to claim 9, wherein the cantilever group includes a first cantilever group, and a wedge-shaped boss is disposed inside the cantilever in the first cantilever group.

12、如权利要求 9所述的打印机，其特征在于，所述悬臂的悬空的一端向轴线方向倾斜。 The printer according to claim 9, wherein one end of the suspension of the cantilever is inclined in the axial direction.

13、如权利要求 9-12任意一项所述的打印机，其特征在于，所述悬臂支撑部件上设置有扇形槽。 The printer according to any one of claims 9 to 12, wherein the cantilever supporting member is provided with a sector groove.

14、如权利要求 13所述的打印机，其特征在于，所述悬臂支撑部件设置至少一个卡槽，与所述介质定位部件相卡接。 The printer according to claim 13, wherein the cantilever supporting member is provided with at least one card slot and is engaged with the medium positioning member.

15、一种打印机，所述打印机包括打印机主体、卷绕轴、卷绕轴支撑机构和卷绕轴传动机构，其特征在于，所述卷绕轴架设在卷绕轴支撑机构上，所述卷绕轴由介质定位部件、悬臂组及悬臂支撑部件组成； 15. A printer comprising a printer body, a winding shaft, a winding shaft support mechanism, and a winding shaft transmission mechanism, wherein the winding shaft is erected on a winding shaft support mechanism, the roll The winding shaft is composed of a medium positioning component, a cantilever group and a cantilever supporting component;

所述介质定位部件中部设置有固定轴，所述悬臂组由若干悬臂组成，所述悬臂一端连接在所述介质定位部件，所述悬臂另一端悬空，所述悬臂与所述介质定位部件的连接位置在所述固定轴外侧 , 并且与所述固定轴存在空隙；所述悬臂支撑部件与所述固定轴相适配，当该悬臂支撑部件套接在所述固定轴上时，该悬臂支撑部件与所述悬臂组接触； A fixed shaft is disposed in a middle portion of the medium positioning component, the cantilever group is composed of a plurality of cantilevers, one end of the cantilever is connected to the medium positioning component, and the other end of the cantilever is suspended, and the cantilever is connected with the medium positioning component. Positioning outside the fixed shaft and having a gap with the fixed shaft; the cantilever support member is adapted to the fixed shaft, and the cantilever support member is when the cantilever support member is sleeved on the fixed shaft Contacting the cantilever set;

所述介质定位部件设置有与所述卷绕轴传动机构相适配的传动部件。 The medium positioning member is provided with a transmission member that is adapted to the winding shaft transmission mechanism.

16、如权利要求 15所述的打印机，其特征在于，所述固定轴设置有扇形槽。 The printer according to claim 15, wherein the fixed shaft is provided with a sector groove.