阅读说明：本技术 一种用于打印装置的主体支架及打印装置 (Main body support for printing device and printing device ) 是由 不公告发明人 于 2021-10-25 设计创作，主要内容包括：本发明公开了一种用于打印装置的主体支架及打印装置,属于打印机技术领域。本发明的用于打印装置的主体支架及打印装置,限位结构抵接于旋转支撑件,且限位结构能产生弹性形变并自动复位,进而能可通过限位结构向旋转支撑件提供朝向定位槽第一侧壁的作用力,以将旋转支撑件抵紧于定位槽的第一侧壁,即使在高速打印时,胶辊受到传动机构的啮合力增大,也不会在定位槽中移动,一方面保证拖纸力,另一方面还能避免胶辊反压打印头,有利于改善的打印效果,并有利于延长打印头的寿命。(The invention discloses a main body support for a printing device and the printing device, and belongs to the technical field of printers. According to the main body support for the printing device and the printing device, the limiting structure abuts against the rotary supporting piece and can generate elastic deformation and automatically reset, so that an acting force towards the first side wall of the positioning groove can be provided for the rotary supporting piece through the limiting structure, the rotary supporting piece abuts against the first side wall of the positioning groove, even if the high-speed printing is carried out, the rubber roller is subjected to an increased meshing force of the transmission mechanism and cannot move in the positioning groove, on one hand, the paper dragging force is ensured, on the other hand, the rubber roller can be prevented from reversely pressing the printing head, the improved printing effect is facilitated, and the service life of the printing head is prolonged.)

1. A main body bracket for a printing device is provided with a positioning groove (11), the end part of a rubber roller (2) of the printing device is rotatably arranged in the positioning groove (11) through a rotating support piece (21), the printing head (3) of the printing device can elastically abut against the rubber roller (2) under the elastic action of the pre-tightening elastic piece (31), so that the rotary support (21) abuts against a first side wall of the positioning slot (11), it is characterized in that the main body bracket for the printing device is also provided with a limit structure (12), the limiting structure (12) can be abutted against the rotary supporting piece (21), the limiting structure (12) can generate elastic deformation and automatically reset, so as to limit the movement of the rotating support (21) to a direction away from the first side wall through the limiting structure (12).

2. The main body support for a printing apparatus according to claim 1, wherein the stopper structure (12) is elastically deformable and automatically resettable to restrict the movement of the rotary support (21) away from the bottom of the positioning groove (11) by the stopper structure (12).

3. A body support for a printing device according to claim 2, wherein said limit structure (12) is elastically deformed when said limit structure (12) abuts against said rotary support (21).

4. A body support for a printing device according to claim 3, characterized in that the limit structure (12) is located on the same side of the rubber roller (2) as the print head (3) of the printing device.

5. The main body support for a printing device according to claim 4, wherein one end of the limit structure (12) away from the bottom of the positioning slot (11) is connected to the main body support for a printing device (1), and one end of the limit structure (12) close to the bottom of the positioning slot (11) abuts against the rotary support (21).

6. The body frame for a printing apparatus according to claim 3, wherein a force of the elastic deformation of the stopper structure (12) to be overcome for the rotary support (21) to leave the bottom of the positioning groove (11) is F1, and a force of the elastic deformation of the stopper structure (12) to be overcome for the rotary support (21) to leave the first side wall is F2, then F1 > F2.

7. A body frame for a printing apparatus according to claim 6, wherein said stopper structure (12) is inclined in a direction approaching said rotary support (21) in a direction from the notch of said positioning groove (11) to the bottom of the groove.

8. A body support for a printing device according to claim 1 or 7, wherein the stop formation (12) is in point contact with the rotary support (21).

9. A body support for a printing device according to claim 1, characterized in that said body support (1) for a printing device is made of plastic.

10. A printing apparatus comprising a main body frame for a printing apparatus according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of printers, in particular to a main body support for a printing device and the printing device.

Background

The rubber roller of the printer is rotatably arranged on the main body support, so that the rubber roller can be matched with a printing head of the printer to clamp and convey a printing medium, and printing is realized.

In the prior art, in order to facilitate the loading and unloading of the rubber roller, the rubber roller is usually directly placed in the positioning groove of the main body bracket through the rotary supporting piece, and the rotary supporting piece can move in the positioning groove when the rubber roller is not in contact with the printing head. When the rubber roller is contacted with the printing head, the rotary supporting piece is tightly propped against one side wall of the positioning groove under the elastic force action of the elastic piece for pre-tightening the printing head, so that the positioning of the rotary supporting piece is realized. However, when high-speed printing is performed, the gear transmission can cause the engagement force applied to the rubber roller by the rubber roller to be larger than the force applied to the rubber roller by the printing head, and the rubber roller can move in the positioning groove, so that the paper dragging force is reduced, the printing is unstable, and even the problem that the rubber roller is separated from the positioning groove occurs.

Disclosure of Invention

The invention aims to provide a main body support for a printing device and the printing device, so as to ensure that a rubber roller is firmly positioned in the working process of the printing device on the basis of facilitating the assembly and disassembly of the rubber roller.

In order to realize the purpose, the following technical scheme is provided:

on the one hand, a main part support for printing device is provided, a main part support for printing device is equipped with the constant head tank, the tip of printing device's rubber roll rotationally set up in through rotary support piece in the constant head tank, printing device's beat printer head can elasticity under the spring action of pretension elastic component support in the rubber roll, so that rotary support piece support in the first lateral wall of constant head tank, a main part support for printing device still is equipped with limit structure, limit structure can the butt in rotary support piece, limit structure can produce elastic deformation and automatic re-setting, with through limit structure restriction rotary support piece is to keeping away from the direction motion of first lateral wall.

As an alternative to the main body support for the printing apparatus, the limiting structure can be elastically deformed and automatically reset to limit the rotation support member to move in a direction away from the bottom of the positioning groove through the limiting structure.

As an alternative to the main body mount for the printing apparatus, the stopper structure is elastically deformed when the stopper structure abuts against the rotary support.

As an alternative to the main body support for the printing device, the limiting structure is located on the same side of the rubber roller as the printing head of the printing device.

As an alternative to the main body support for the printing apparatus, one end of the limiting structure, which is far away from the bottom of the positioning groove, is connected to the main body support for the printing apparatus, and one end of the limiting structure, which is close to the bottom of the positioning groove, abuts against the rotary support.

As an alternative to the main body frame for the printing apparatus, the force of the elastic deformation of the stopper structure to be overcome when the rotary support leaves the bottom of the positioning groove is F1, and the force of the elastic deformation of the stopper structure to be overcome when the rotary support leaves the first side wall is F2, then F1 > F2.

As an alternative to the main body frame for the printing apparatus, the stopper structure is inclined in a direction approaching the rotary support along the notch of the positioning groove toward the groove bottom.

As an alternative to a body mount for a printing device, the limit formation is in point contact with the rotary support.

As an alternative to the main body support for the printing apparatus, the main body support for the printing apparatus is made of plastic.

In another aspect, a printing apparatus is provided, which includes the main body support for a printing apparatus as described in any one of the above.

Compared with the prior art, the invention has the beneficial effects that:

according to the main body support for the printing device and the printing device, the limiting structure abuts against the rotary supporting piece and can generate elastic deformation and automatically reset, so that an acting force towards the first side wall of the positioning groove can be provided for the rotary supporting piece through the limiting structure, the rotary supporting piece abuts against the first side wall of the positioning groove, even if the high-speed printing is carried out, the rubber roller is subjected to an increased meshing force of the transmission mechanism and cannot move in the positioning groove, on one hand, the paper dragging force is ensured, on the other hand, the rubber roller can be prevented from reversely pressing the printing head, the improved printing effect is facilitated, and the service life of the printing head is prolonged.

Drawings

FIG. 1 is a schematic view of a stop structure in cooperation with a rotary support according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a printing apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic side view of a printing apparatus according to an embodiment of the invention;

fig. 4 is an enlarged view of a portion a of fig. 3.

Reference numerals:

1. a main body support; 11. positioning a groove; 12. a limiting structure; 13. a positioning structure;

2. a rubber roller; 21. a rotating support;

3. a print head; 31. the elastic element is pre-tightened.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1-4, the embodiment provides a main body bracket for a printing apparatus and the printing apparatus, the printing apparatus includes the main body bracket 1, a rubber roller 2, a printing head 3 and a transmission mechanism, the main body bracket 1 is provided with a positioning slot 11, an end of the rubber roller 2 of the printing apparatus is rotatably disposed in the positioning slot 11 through a rotating support member 21, the transmission mechanism is used for driving the rubber roller 2 to rotate, the printing head 3 can elastically abut against the rubber roller 2 under the elastic force of a pre-tightening elastic member 31, so that the rotating support member 21 abuts against a first side wall of the positioning slot 11, the main body bracket 1 for the printing device is also provided with a limiting structure 12, the limiting structure 12 can be abutted against the rotary supporting piece 21, the limiting structure 12 can generate elastic deformation and automatically reset, so as to limit the movement of the rotating support 21 in the direction away from the bottom of the positioning slot 11 and limit the movement of the rotating support 21 in the direction away from the first side wall of the positioning slot 11 by the limiting structure 12.

The limiting structure 12 is abutted against the rotary supporting piece 21, the limiting structure 12 can generate elastic deformation and automatically reset, and then acting force towards the bottom of the positioning groove 11 can be provided for the rotary supporting piece 21 through the limiting structure 12, so that the rubber roller 2 is ensured not to be separated from the positioning groove 11; limit structure 12 can also provide the effort towards the first lateral wall of constant head tank 11 to rotation support piece 21 to support rotation support piece 21 tightly in the first lateral wall of constant head tank 11, even when printing at a high speed, rubber roll 2 receives drive mechanism's meshing force increase, also can not remove in constant head tank 11, guarantee the paper dragging power on the one hand, on the other hand can also avoid rubber roll 2 backpressure to beat printer head 3, be favorable to the printing effect of improvement, and be favorable to prolonging the life-span of printer head 3.

Alternatively, the limit structure 12 is elastically deformed when the limit structure 12 abuts against the rotary support 21. It should be noted that, when the rotating support 21 is installed in the positioning slot 11 and the printing device is not in operation, the limiting structure 12 has generated elastic deformation, and the rotating support 21 is abutted against the slot bottom and the first side wall of the positioning slot 11 under the elastic force of the limiting structure 12, that is, the limiting structure 12 applies force to the rotating support 21 in the direction close to the first side wall, and applies force to the rotating support 21 in the direction close to the slot bottom of the positioning slot 11, so that even if the printing device performs high-speed printing, the limiting structure 12 can ensure that the rotating support 21 does not move in the direction away from the slot bottom and the first side wall of the positioning slot 11, and ensure that the printing effect is stable. If the rotating support member 21 is to leave the positioning slot 11 or move in a direction away from the first sidewall, the limiting structure 12 needs to be pressed, so that the deformation amount of the limiting structure 12 is increased. So set up, can guarantee that rotation support piece 21 is supported tightly by limit structure 12 all the time, have the stable effect in location.

In this embodiment, the limiting structure 12 and the print head 3 are located on the same side of the rubber roller 2, the pre-tightening elastic element 31 for pre-tightening the print head 3 can provide a part of pressure to the rotating support element 21, and the rotating support element 21 is compressed and positioned under the combined action of the pre-tightening elastic element 31 and the limiting structure 12, which is beneficial to reducing the stress of the limiting structure 12.

Optionally, limit structure 12 is kept away from the one end of constant head tank 11 tank bottom and is connected in main part support 1, and limit structure 12 is close to the one end tip and the 21 butt of rotary support piece of constant head tank 11 tank bottom, and it should be said that limit structure 12 can swing around the junction of limit structure 12 and main part support 1, and limit structure 12 can also compress along its length direction, so sets up, can make limit structure 12's structural strength bigger, even limit structure 12 adopts plastics to make, also is difficult for breaking. Specifically, the limiting structure 12 and the main body support 1 are of an integrally formed structure and made of plastics, which is beneficial to reducing the cost.

Alternatively, the stopper structure 12 may be inclined in a direction approaching the rotary support 21 in a direction from the notch of the positioning groove 11 toward the bottom of the groove. Specifically, a gap is provided between one end of the position limiting structure 12 close to the bottom of the positioning groove 11 and one side of the position limiting structure away from the rotating support 21 and the inner wall of the positioning groove 11, so that the position limiting structure 12 can generate elastic deformation. The upper end of the limiting structure 12 is connected to the notch of the positioning groove 11, the lower end is a free end and is abutted against the rotary support member 21, and the limiting structure 12 of the structure can increase the strength of the limiting structure 12 and is not easy to break due to overlarge stress.

Alternatively, the force of the elastic deformation of the position limiting structure 12, which needs to be overcome when the rotary support 21 leaves the bottom of the positioning slot 11, is F1, and the force of the elastic deformation of the position limiting structure 12, which needs to be overcome when the rotary support 21 leaves the first side wall, is F2, then F1 > F2. Rotatory support piece 21 supports under limit structure 12's effect and leans on in the first lateral wall and the tank bottom of constant head tank 11, rotatory support piece 21 is the point contact with the first lateral wall and the tank bottom of constant head tank 11, it can be understood, if the rubber roll 2 will deviate from the notch of constant head tank 11, need great backpressure, make its further production deformation with extrusion limit structure 12, and the rubber roll 2 if will remove in constant head tank 11, need less backpressure, make its further production deformation with extrusion limit structure 12, so set up, even limit structure 12 accident takes place micro-deformation, rubber roll 2 only can remove in constant head tank 11, can not deviate from constant head tank 11.

Optionally, in order to facilitate loading and unloading of the rubber roller 2 and ensure that the limiting structure 12 is stably contacted with the rotating support member 21 of the rubber roller 2, the limiting structure 12 is in point contact with the rotating support member 21.

In other embodiments, the first sidewall of the positioning slot 11 may be a plane or a cambered surface structure, and when the first sidewall is a straight surface structure, the rotating support 21 is in point contact with the first sidewall; when the first sidewall is of a cambered surface structure, the rotating support member 21 is in surface contact with the first sidewall.

In particular, the stop structure 12 enables the rotary support 21 to always have a tendency to move towards the bottom of the slot 11 along direction K and towards the first side wall along direction M. Further, the force acting on the rotary support 21 in the K direction to the limit structure 12 is larger than the force acting on the rotary support 21 in the M direction to the limit structure 12. It can be understood that if the rubber roller 2 is to be separated from the notch of the positioning groove 11, a large force needs to be overcome, and if the rubber roller 2 is to be moved in the positioning groove 11, the force to be overcome is slightly small, even if the limit structure 12 is accidentally deformed slightly, the rubber roller 2 only can be moved in the positioning groove 11, and can not be separated from the positioning groove 11.

In other embodiments, the connection between the first side wall of the positioning slot 11 and the bottom of the positioning slot 11 is provided with an arc-shaped portion matching with the external shape of the rotating support 21, so as to increase the contact area between the positioning slot 11 and the rotating support 21, thereby providing a more stable support for the rotating support 21.

Optionally, the engagement force of the transmission mechanism received by the rotary support member 21 is F3, and the force acting on the rotary support member 21 by the limit structure 12 is F4, wherein the included angle between the direction of F3 and the direction of F4 is an obtuse angle or the direction of F3 is opposite to the direction of F4. Specifically, when the printing device prints at a low speed, the rotary support 21 is subjected to the engaging force F3 when the transmission mechanism, such as the gear pair, transmits, but the rotary support 21 can abut against the first sidewall of the positioning slot 11 under the action of the elastic force exerted by the pre-tensioned elastic element 31 on the print head 3, so that normal printing can be satisfied; when high-speed printing is performed, F3 is enlarged, as shown in fig. 4, the direction of F3 is inclined to the right and upward, under the action of F3, the rubber roller 2 in the prior art will leave the first side wall under the action of F3, the contact pressure between the rubber roller 2 and the print head 3 is enlarged, so that the position of the contact line between the rubber roller 2 and the print head 3 will be changed, and the printing effect will be deteriorated, and the limiting structure 12 in this embodiment can provide a force F4 acting on the rotating support member 21, as shown in fig. 4, the direction of F4 is inclined to the left and downward, and the included angle between the directions of F4 and F3 is an obtuse angle or the directions of F4 and F3 are opposite, so that the rotating support member 21 is clamped by the limiting structure 12 and the first side wall of the positioning groove 11, so as to prevent the rubber roller 2 from leaving the first side wall or coming off from the positioning groove 11.

In other embodiments, the main body bracket 1 is further provided with a positioning structure 13, the positioning structure 13 and the printing head 3 are respectively located at two sides of the rubber roller 2, the positioning structure 13 can abut against the rotating support member 21, and the positioning structure 13 can enable the rotating support member 21 to always have a movement trend towards the bottom of the positioning groove 11 along the direction K. Specifically, the positioning structure 13 can provide an acting force towards the bottom of the positioning groove 11 along the direction K to the rotary support member 21, so that the rotary support member 21 always has a movement trend towards the bottom of the positioning groove 11 along the direction K, and when printing at a low speed, the positioning of the rubber roller 2 can be realized only by the positioning structure 13; when printing at high speed, the limiting structure 12 can be matched with the positioning structure 13 to clamp the rubber roller 2.

Optionally, the positioning structure 13 is an integrally formed structure with the main body support 1. Location structure 13 has certain positioning action to rotation support piece 21, and the recombination limit structure 12 can further guarantee that rubber roll 2 also can not remove in constant head tank 11 even when printing at a high speed, therefore the power that rubber roll 2 received is shared by location structure 13 and limit structure 12 jointly for limit structure 12 atress can not be too big, need not to adopt the higher material of intensity such as metal preparation main part support 1 and limit structure 12.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.