Winding drum assembly, consumable recycling device and printer
By designing a stepped roll assembly in a thermal transfer or thermal printer and using a second cylinder to support the middle position of the film strip, the film strip is prevented from being subjected to uneven force during the recycling process, thus solving the problems of irregular film strip winding and wrinkling, and achieving highly accurate and stable film strip winding.
Patent Information
- Application Number
- CN202422597079.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-25
AI Technical Summary
In thermal transfer or thermal printers, the film tape is subjected to inconsistent force during the recycling and winding process due to different thicknesses in the middle and at both ends, which can easily cause deviation and dislocation, resulting in irregular winding and wrinkling.
A reel assembly is designed, including a first cylinder, a first limiter, a second limiter and a second cylinder. The second cylinder is sleeved on the outside of the first cylinder to form a stepped structure. The second cylinder supports the film strip, increases the contact area, and prevents the film strip from being subjected to force only at the edge. The film strip is positioned and reeled by the first limiter and the second limiter.
It effectively prevents the film tape from deflecting and wrinkling during the winding process, improves the accuracy and stability of the film tape winding, and ensures that the film tape is neat and regular after winding.
Smart Images
Figure CN223444780U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to printing equipment technical field, specifically, a drum assembly, consumable recycling device and printer. BACKGROUND
[0002] The heat transfer printing or thermal printer is through consumable to transfer the character or image to the printing medium in the printing process, and the consumable generally includes ribbon or film strip etc., and the consumable is recycled through the sleeve after printing. Since the thickness of the film strip in the middle and both ends is different after printing, the stress of both ends and the middle position is inconsistent during the recycling winding process, so that the offset or misplacement is prone to appear, and then the wrinkling or irregular situation of the film strip after winding appears, which affects the winding effect of the film strip as a whole. SUMMARY
[0003] The utility model discloses a drum assembly, consumable recycling device and printer can prevent the film strip from offsetting due to the stress of both ends during winding on the cylinder, and avoid the wrinkling or irregular situation of the film strip after winding.
[0004] The first aspect of the utility model provides a kind of drum assembly, and the drum assembly includes first cylinder, first limiting piece, second limiting piece and second cylinder.
[0005] First cylinder;
[0006] Second cylinder, the second cylinder is set on the outside of the first cylinder, the second cylinder and the first cylinder are located at the same side End circumferentially jointly defined to form stepped structure, and the length of the second cylinder along its axis direction is less than the length of the first cylinder along its axis direction;
[0007] First limiting piece, the first limiting piece is connected with one end of the first cylinder;
[0008] Second limiting piece, the second limiting piece is connected with the end of the first cylinder away from the first limiting piece.
[0009] In a possible embodiment of the utility model, the opposite ends of the second cylinder are formed in the stepped structure along the first direction.
[0010] In a possible embodiment of the utility model, along the first direction, the length of the first cylinder is L1, and the length of the second cylinder is L2, and it satisfies: 0 < L2 < L1.
[0011] In a possible embodiment of the utility model, the first limiting piece, the first cylinder and the second limiting piece are sequentially arranged along the first direction.
[0012] In a possible embodiment of the present application, the second cylinder body is detachably connected with the first cylinder body or is integrally arranged.
[0013] In a possible embodiment of the present application, the second cylinder body is provided with a through groove, and the second cylinder body is connected with the first cylinder body in an interference fit through the through groove.
[0014] In a possible embodiment of the present application, the first cylinder body is provided with an elastic positioning member at a middle position, the second cylinder body is provided with a positioning groove at a side close to the first cylinder body, and the elastic positioning member is movably connected with the positioning groove.
[0015] In a possible embodiment of the present application, the first limiting member and the second limiting member each include a limiting portion and a connecting portion, the connecting portion is connected with the first cylinder body, and the connecting portion is arranged in the first cylinder body, so that the limiting portion abuts against the first cylinder body.
[0016] The second aspect of the present application provides a consumable recycling device, which comprises a bracket, a driving assembly and the winding drum assembly in any one of the above embodiments, the winding drum assembly is installed on the bracket, and the driving assembly is connected with the winding drum assembly.
[0017] The third aspect of the present application provides a printer, which comprises the consumable recycling device in the above embodiment or the winding drum assembly in any one of the above embodiments.
[0018] Compared with the prior art, the winding drum assembly, the consumable recycling device and the printer have the following beneficial effects: the first limiting member and the second limiting member are connected with the first cylinder body to facilitate recycling and winding of the film strip, the second cylinder body is sleeved on the first cylinder body and forms a stepped structure, the second cylinder body is used for supporting the film strip, the contact area of the winding drum assembly is increased, part of the first cylinder body can be exposed to the outside, the film strip is prevented from being offset due to stress on only the edge position during winding, wrinkles or irregularities of the film strip after winding are avoided, the film strip winding has high accuracy and stability. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.
[0020] Figure 1The three-dimensional structure schematic diagram of the drum assembly provided in some embodiments of the present application is shown in the figure.
[0021] Figure 2 The three-dimensional assembly schematic diagram of the drum assembly provided in some embodiments of the present application is shown in the figure.
[0022] Figure 3 The structure schematic diagram of the second cylinder of the drum assembly provided in some embodiments of the present application is shown in the figure.
[0023] Figure 4 The three-dimensional structure schematic diagram of the consumable recycling device provided in some embodiments of the present application is shown in the figure. Figure 1 .
[0024] Figure 5 The three-dimensional structure schematic diagram of the consumable recycling device provided in some embodiments of the present application is shown in the figure. Figure 2 .
[0025] Main component symbol description.
[0026] 100 - drum assembly; 110 - first cylinder; 111 - elastic positioning member; 120 - first limiting member; 130 - second limiting member; 131 - limiting part; 132 - connecting part; 140 - second cylinder; 141 - through slot; 142 - positioning slot; 200 - consumable recycling device; 210 - support; 220 - driving assembly; 230 - supporting member; 300 - film belt. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0029] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0030] In the description of the utility model, it needs to be explained that, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.
[0031] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0032] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "installed", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0033] Some embodiments of the utility model will be described in detail below in combination with the drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.
[0034] In the related art, the thermal transfer or thermal printer transfers text or images onto the printing medium through consumables during the printing process. The consumables generally include ribbons or film strips, etc. The consumables are recycled through the sleeve after the printing is completed. Due to the different thicknesses of the film strip at the middle and both ends after printing, the stress at the middle and both ends of the film strip will be inconsistent during the recycling and winding process, so that the film strip is prone to deviation or misalignment, thereby causing the film strip to wrinkle or be irregularly wound after winding, affecting the overall winding effect of the film strip.
[0035] To solve the above problems, with reference to Figures 1 to 3 The embodiment of the application provides another winding drum assembly 100, which comprises a first drum body 110, a first limiting piece 120, a second limiting piece 130 and a second drum body 140.
[0036] Specifically, in combination with Figure 1 andFigure 2 As shown, the second cylinder 140 is sleeved on the outside of the first cylinder 110, the second cylinder 140 and the end of the first cylinder 110 on the same side together define a stepped structure, and the length of the second cylinder 140 along its axis direction is less than the length of the first cylinder 110 along its axis direction; the first limiting piece 120 is connected to one end of the first cylinder 110; the second limiting piece 130 is connected to the end of the first cylinder 110 away from the first limiting piece 120, and the first limiting piece 120, the second limiting piece 130 and the first cylinder 110 are connected to facilitate the recycling and winding of the film strip 300. The second cylinder 140 is sleeved on the first cylinder 110 and forms a stepped structure, and the second cylinder 140 is used to support the film strip 300, increase the contact area of the winding drum assembly 100, and expose part of the first cylinder 110 to the outside, so that the film strip 300 does not deviate due to force on the edge during winding, and wrinkles or irregularities are avoided after winding.
[0037] It should be noted that, with reference to Figure 1 As shown, the winding drum assembly 100 has a first direction. For example, the first direction is in the axial direction of the winding drum assembly 100. It can be understood that the above definition is only for the convenience of understanding the relative position relationship of each part in the winding drum assembly 100, and should not be understood as a limitation of the present application.
[0038] It can be understood that when the film strip 300 is wound, the two ends of the film strip 300 are tight and the middle position is collapsed. The second cylinder 140 and the first cylinder 110 form a stepped structure, so that the diameter of the end of the winding drum assembly 100 is smaller than the diameter of the middle position.
[0039] In one embodiment, optionally, as Figure 1 As shown, the opposite ends of the second cylinder 140 form the stepped structure, that is, through the stepped structure of the opposite ends of the second cylinder 140, the middle position of the second cylinder 140 supports the film strip 300, so that the stress surface of the film strip 300 is close to the middle position during the winding process of the film strip 300, the winding of the film strip 300 is more compact, and the deviation or irregularity of the film strip 300 during the winding process is reduced, which is beneficial to the positioning of the film strip 300.
[0040] In one embodiment, optionally, along the first direction, the length of the first cylinder body 110 is L1, and the length of the second cylinder body 140 is L2, satisfying: 0 < L2 < L1, that is, the length L2 of the second cylinder body 140 is smaller than the length L1 of the first cylinder body 110 along the axial direction of the winding drum assembly 100, at this time, the first cylinder body 110 can form a stepped structure with the second cylinder body 140, so that the edge position diameter of the winding drum assembly 100 is smaller than the middle position diameter, and the first cylinder body 110 can support the stress surface of the film strip 300, reducing the situation that the film strip 300 deviates or is misaligned to the edge position of the winding drum assembly 100.
[0041] In addition, optionally, the length L1 of the first cylinder body 110 and the length L2 of the second cylinder body 140 satisfy: 0.5L1 ≤ L2, that is, the length L2 of the second cylinder body 140 is greater than or equal to 0.5L1 of the length of the first cylinder body 110, so as to ensure that the second cylinder body 140 has sufficient contact area with the film strip 300, preventing the contact area from being too small and affecting the winding effect of the film strip 300. For example, the length L2 of the second cylinder body 140 can also be 0.6L1, 0.7L1, 0.8L1, 0.85L1, 0.9L1, etc., and the length L2 of the second cylinder body 140 can be any value between 0.5L1 and L1, which will not be listed one by one here.
[0042] Optionally, along the first direction, the distance between the edge position of the second cylinder body 140 and the edge position of the first cylinder body 110 on the same side of the first cylinder body 110 is d, satisfying: 5mm ≤ d ≤ 30mm, that is, along the axial direction of the winding drum assembly 100, due to the length of the first cylinder body 110 being greater than the length of the second cylinder body 140, the distance d between the edge position of the second cylinder body 140 and the edge position of the same end of the first cylinder body 110 is achieved. The second cylinder body 140 and the first cylinder body 110 form a stepped structure, in other words, when the second cylinder body 140 is sleeved on the first cylinder body 110, the distance d is the axial length of the opposite end of the first cylinder body 110 exposed so as to reduce the stress points of the opposite ends of the film strip 300. For example, d is 5mm, the second cylinder body 140 can support the stress surface of the film strip 300, in addition, d can also be 30mm, on the one hand, ensuring that the second cylinder body 140 has sufficient contact area with the film strip 300, and on the other hand, reducing the stress points of the film strip 300 by the first cylinder body 110, further preventing the film strip 300 from deviating to the edge position of the winding drum assembly 100. Of course, the size of d is not limited to this, in other embodiments, d can be any value between 5mm and 30mm, d can be 6mm, 10mm, 16mm, 20mm, 25mm, 28mm, etc., which will not be listed one by one here.
[0043] In one embodiment, optionally, referring to Figure 2As shown, the first limiting member 120, the first barrel 110 and the second limiting member 130 are sequentially arranged along the first direction, i.e. along the axial direction of the winding drum assembly 100, and the first barrel 110 is located between the first limiting member 120 and the second limiting member 130.
[0044] In one embodiment, optionally, referring to Figure 1 and Figure 2 As shown, the second barrel 140 is detachably connected with the first barrel 110 or integrally arranged with the first barrel 110, and correspondingly, the second barrel 140 and the first barrel 110 can be integrally arranged, i.e. the second barrel 140 and the first barrel 110 are integrally formed, and the second barrel 140 and the first barrel 110 are integrated into a whole structure by means of injection molding, blow molding, casting or metal forming, etc., which can enhance the strength of the whole structure and reduce the installation steps. Of course, the second barrel 140 and the first barrel 110 are detachably connected, so as to facilitate the disassembly of the second barrel 140 from the first barrel 110 or the installation of the second barrel 140 and the first barrel 110.
[0045] Optionally, as shown in Figure 2 The second barrel 140 is provided with a through slot 141, and the second barrel 140 is connected with the first barrel 110 in interference through the through slot 141. The through slot 141 of the second barrel 140 can make the second barrel 140 have a certain diameter adjustment range, so that the second barrel 140 is sleeved on the first barrel 110 through the deformation amount of the through slot 141, and the interference fit of the second barrel 140 and the first barrel 110 is realized. At this time, when the first barrel 110 rotates relatively, the second barrel 140 rotates synchronously with the first barrel 110, and the second barrel 140 can also be separated from the first barrel 110 through the deformation amount of the through slot 141, which has a better technical effect. Exemplarily, the second barrel 140 is made of elastic material, such as thermoplastic elastomer, thermosetting elastomer, etc.
[0046] Optionally, referring to Figure 3As shown, the middle position of the first cylinder body 110 is provided with an elastic positioning piece 111, the side close to the first cylinder body 110 of the second cylinder body 140 is provided with a positioning groove 142, the elastic positioning piece 111 can be movably clamped with the positioning groove 142, the elastic positioning piece 111 and the positioning groove 142 form a buckle structure, the first cylinder body 110 can be connected and limited with the positioning groove 142 of the second cylinder body 140 through the elastic positioning piece 111, when the first cylinder body 110 rotates relatively, the second cylinder body 140 can rotate synchronously with the first cylinder body 110, because the elastic positioning piece 111 has a certain elastic deformation amount, the first cylinder body 110 can be separated and disassembled from the second cylinder body 140 through the elastic positioning piece 111. Exemplarily, the number of the elastic positioning pieces 111 is multiple, the multiple elastic positioning pieces 111 are arranged on the circumferential outer side of the first cylinder body 110, the number of the positioning grooves 142 is multiple, one elastic positioning piece 111 corresponds to one positioning groove 142.
[0047] In one embodiment, optionally, as Figure 2 As shown, the first limiting piece 120 and the second limiting piece 130 both include a limiting part 131 and a connecting part 132, the connecting part 132 is connected with the first cylinder body 110, and the connecting part 132 is arranged in the first cylinder body 110, so that the limiting part 131 abuts against the first cylinder body 110, in other words, the first limiting piece 120 is connected with the first cylinder body 110 through the connecting part 132, the limiting part 131 can limit the film belt 300, to prevent the film belt 300 from being separated from the winding drum assembly 100, the connecting part 132 and the first cylinder body 110 can be connected through a buckle connection mode, the driving assembly 220 can drive the first cylinder body 110 to rotate through the first limiting piece 120, to realize the winding and recovery of the film belt 300, of course, other connection modes of the connecting part 132 and the first cylinder body 110, the shape structure of the second limiting piece 130 is similar to that of the first limiting piece 120, and details are not repeated here.
[0048] In summary, the first limiting piece 120, the second limiting piece 130 and the first cylinder body 110 are connected to facilitate the recovery and winding of the film belt 300, the second cylinder body 140 is sleeved on the first cylinder body 110 and forms a stepped structure, the second cylinder body 140 is used for supporting the middle position of the film belt 300, to improve the contact area of the middle position of the winding drum assembly 100, so that the opposite ends of the first cylinder body 110 can be exposed to the outside, to prevent the film belt 300 from being deviated due to the force on the edge position during winding, to avoid the wrinkling or irregularity of the film belt 300 after winding, and to make the film belt 300 have higher accuracy and stability during winding.
[0049] The embodiment of the utility model provides a kind of consumable recovery device 200, combined Figure 4and Figure 5 As shown in the figure, the consumable recycling device 200 comprises a support 210, a driving assembly 220 and the reel assembly 100 described in embodiment 1, the reel assembly 100 is installed on the support 210, the consumable recycling device 200 is further provided with a supporting piece 230, the supporting piece 230 can support the film belt 300 and change the transmission direction of the film belt 300, the driving assembly 220 is connected with the reel assembly 100, the consumable recycling device 200 containing the reel assembly 100 has all the beneficial effects of the reel assembly 100, which will not be described in detail here.
[0050] The embodiment of the utility model further provides a printer, comprising the consumable recycling device 200 described in embodiment 2, the printer containing the consumable recycling device 200 has all the beneficial effects of the consumable recycling device 200, which will not be described in detail here. Or the printer comprises the reel assembly 100 described in embodiment 1 or embodiment 2, the printer containing the reel assembly 100 has all the beneficial effects of the reel assembly 100, which will not be described in detail here.
[0051] In all examples shown and described herein, any specific values should be interpreted as merely exemplary and not as a limitation, and thus, other examples of the exemplary embodiments can have different values.
[0052] The above-mentioned embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model.
Claims
1. A reel assembly, characterized in that: include: a first cylinder; a second cylinder, the second cylinder being sleeved on the outside of the first cylinder, the ends of the second cylinder and the first cylinder being located on the same side circumferentially defining a stepped structure, and the length of the second cylinder along its axial direction being shorter than the length of the first cylinder along its axial direction; a first limiting member connected to one end of the first cylinder; A second limiting member is connected to an end of the first cylinder away from the first limiting member.
2. The reel assembly according to claim 1, wherein: The stepped structures are formed at opposite ends of the second cylinder along the first direction.
3. The reel assembly according to claim 1, wherein: Along the first direction, the length of the first cylinder is L1, and the length of the second cylinder is L2, which satisfies: 0<L2<L1.
4. The reel assembly according to claim 1, wherein: The first limiting member, the first cylinder and the second limiting member are arranged in sequence along the first direction.
5. The reel assembly according to claim 1, wherein: The second cylinder and the first cylinder are detachably connected or integrally arranged.
6. The reel assembly according to claim 5, characterized in that The second cylinder is provided with a through slot, and the second cylinder is interference-connected with the first cylinder via the through slot.
7. The reel assembly according to claim 5, wherein: An elastic positioning piece is provided in the middle of the first cylinder, and a positioning groove is provided on a side of the second cylinder close to the first cylinder. The elastic positioning piece can be movably engaged with the positioning groove.
8. The reel assembly according to any one of claims 1 to 7, characterized in that: The first limiting member and the second limiting member each include a limiting portion and a connecting portion, the connecting portion is connected to the first cylinder, and the connecting portion is disposed through the first cylinder so that the limiting portion abuts against the first cylinder.
9. A consumables recovery device, characterized in that: It comprises a bracket, a driving assembly and the reel assembly according to any one of claims 1 to 8, wherein the reel assembly is mounted on the bracket, and the driving assembly is connected to the reel assembly.
10. A printer, characterized in that: Includes the consumable material recovery device according to claim 9, or includes the reel assembly according to any one of claims 1 to 8.