A printing support mechanism and a printing apparatus

Abstract

The application provides a printing support mechanism and a printing device. The printing support mechanism comprises a pressure roller and a guide roller arranged from outside to inside from a first conveying area, and a support element arranged on the top of the pressure roller and the guide roller. The support element comprises a base plate for clamping the pressure roller and the guide roller together with a bottom plate, and a pressing plate which is movably separated from the base plate. The base plate forms a side plate against the bottom plate, and a notch is formed on the edge side of the base plate. The pressing plate and the bottom plate jointly limit the pressure roller at a preset position formed by the base plate. After the pressing plate is removed, the pressure roller moves out of the notch. Through the application, the disassembly of the pressure roller is simplified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic weighing apparatus, and particularly relates to a printing supporting mechanism and a printing device. BACKGROUND

[0002] The basic principle of thermal printing is to convert the data received by the printer into a dot matrix signal to control the heating of the thermal unit and contact the thermal printing paper to print the required pattern. The thermal paper can be baseless thermal paper or base thermal paper, and can be applied to office, factory, warehouse, supermarket, shopping mall and other scenes.

[0003] Specifically, the thermal printer mainly comprises a paper roll mounting mechanism, a printing mechanism and a printing supporting mechanism. The paper roll mounting mechanism is used for mounting and fixing the printing paper roll, the printing mechanism is used for heating the printing paper to print the required pattern, and the printing supporting mechanism is used for assisting the printing mechanism to print the pattern and supporting the transmission of the printing paper. In actual application, the printing paper needs to pass between the printing mechanism and the printing supporting mechanism. The printing paper is fixed on the printing supporting mechanism by the adhesion of the printing mechanism and the printing supporting mechanism, so as to play a role in fixing the printing paper. The fixed printing paper is heated by the printing mechanism to print the pattern, so the fixing of the printing paper by the printing supporting mechanism is particularly important.

[0004] The printing supporting mechanism comprises a compression roller which is adhered to the printing mechanism to fix the printing paper. In order to ensure the flatness of the surface of the printing paper when the compression roller fixes the printing paper, the flatness of the surface of the compression roller needs to be ensured. At the same time, the materials of baseless thermal paper and base thermal paper are different, so different materials of the compression roller need to be replaced in time when different thermal papers are used for printing work. If the thermal printing paper is base thermal paper, the label and the base paper contained therein are adhered by adhesive. When heating to print the pattern, a small amount of adhesive will overflow and remain on the surface of the compression roller, resulting in unevenness of the surface of the compression roller. It is difficult to clean the surface of the compression roller to ensure the flatness of the surface of the compression roller, so the compression roller needs to be replaced regularly. Due to the design of the structure of the existing printer, the disassembly steps of the compression roller are complicated. The entire top cover of the printing supporting mechanism needs to be opened, and then the compression roller is pried open by using a tool. At the same time, the top cover is designed as a whole at the beginning to fix other components (such as a paper pressing assembly for preventing the up and down movement of the printing paper) contained in the printing supporting mechanism. Therefore, the top cover needs to be aligned with multiple mounting holes during installation. Therefore, there are many inconveniences when disassembling the compression roller. SUMMARY

[0005] The present application aims to solve the problem that the disassembly steps of the compression roller of the existing printing supporting mechanism are complicated due to the design of the structure, and there are many inconveniences when disassembling the compression roller.

[0006] To achieve one of the above objects, the present application provides a printing support mechanism arranged in a printing device comprising a printing mechanism, the printing support mechanism being arranged opposite to the printing mechanism on a base plate and forming a first conveying area for conveying a printing object;

[0007] The printing support mechanism comprises:

[0008] a pressure roller and a guide roller arranged from outside to inside of the first conveying area, and a support member arranged on top of the pressure roller and the guide roller;

[0009] The support member comprises a base plate for jointly holding the pressure roller and the guide roller with the base plate, and a pressing plate movably separated from the base plate;

[0010] The base plate forms a side plate abutting against the base plate, and a notch is formed on the edge side of the base plate, and the pressing plate jointly limits the pressure roller at a preset position formed by the base plate, and the pressure roller is removed from the notch after the pressing plate is removed.

[0011] As a further improvement of the present application, the top end of the pressure roller extends axially upward to form a first journal segment penetrating the base plate, the base plate is provided with a first fixed hole for the first journal segment to penetrate, and the first fixed hole is in communication with the notch;

[0012] The preset position is the position where the pressure roller is jointly held by the base plate and the base plate when the first journal segment penetrates the fixed hole.

[0013] As a further improvement of the present application, the first journal segment extends axially upward along the pressure roller in sequence to form a first shaft segment with a diameter that is reduced and can be removed from the notch, and a second shaft segment penetrating the first fixed hole, and the opening width of the notch is smaller than the diameter of the first fixed hole.

[0014] As a further improvement of the present application, the support member further comprises a support ring sleeved on the outside of the second shaft segment and penetrating the first fixed hole.

[0015] As a further improvement of the present application, the second shaft segment extends axially upward along the pressure roller in sequence to form a first abutting segment abutting against the support ring and a first reduced diameter segment for the support ring to be sleeved.

[0016] As a further improvement of the present application, the pressing plate is provided with a fixed hole, the second shaft segment penetrates the first fixed hole and is accommodated in the fixed hole.

[0017] As a further improvement of the present application, the fixed hole is penetrated by the second shaft segment, and the support ring extends axially upward along the pressure roller in sequence to form a second abutting segment abutting against the pressing plate and a second reduced diameter segment penetrating the fixed hole.

[0018] As a further improvement of the present application, the printing support mechanism further comprises a paper stripping member arranged outside the pressure roller.

[0019] The paper stripping member comprises a folding plate arranged at the outer end of the first conveying area to separate the printing object, and a fixed plate extending inwardly from the top end of the folding plate to form a fixed plate clamped by the base plate and the pressure roller and sleeved outside the support ring.

[0020] As a further improvement of the present application, the side plate comprises a column and a side plate arranged in an integral structure with the column, and a locking member penetrating the bottom plate and screwed to the column.

[0021] As a further improvement of the present application, the bottom plate is provided with a first opening, and the bottom end of the pressure roller extends to form a second shaft segment penetrating the first opening.

[0022] As a further improvement of the present application, the guide roller comprises a guide roller shaft clamped by the base plate and the bottom plate, and a roller body movably sleeved outside the guide roller shaft.

[0023] As a further improvement of the present application, the guide roller shaft is arranged in an integral structure with the bottom plate and / or the base plate.

[0024] Based on the same inventive idea, the present application further discloses a printing device comprising:

[0025] The printing support mechanism, the printing mechanism and the paper roll mounting mechanism according to any one of the above-mentioned applications.

[0026] Based on the same inventive idea, the present application further discloses a printing device comprising:

[0027] The printing support mechanism, the printing mechanism, the waste paper recycling mechanism and the paper roll mounting mechanism according to any one of the above-mentioned applications.

[0028] Compared with the prior art, the present application has the following advantages:

[0029] When the pressure roller needs to be disassembled, the pressing plate is removed from the top of the base plate, the pressure roller is removed from the notch formed laterally at the edge of the base plate, and then the pressure roller is disassembled, in the disassembly process, only the pressing plate needs to be removed, and the pressure roller can be disassembled without disassembling other components included in the printing support mechanism, and the disassembly process is simple; at the same time, when the pressure roller needs to be installed, the pressure roller is assembled in the preset position from the notch formed laterally at the edge of the base plate, and the pressing plate is assembled on the top of the base plate, and then the pressure roller is installed, in the installation process, only the pressure roller and the pressing plate need to be operated, and the base plate remains stationary, so that the step of aligning multiple hole positions in the prior art is not needed, the installation process is simple, and thus the problem that the disassembly step of the pressure roller is complicated due to the design of the structure of the existing printing support mechanism and that the pressure roller is inconvenient to disassemble and assemble is solved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A perspective view of the printing device shown in the present application from one angle of view;

[0031] Figure 2 A perspective view of the printing device shown in the present application from another angle of view;

[0032] Figure 3 A perspective view of the printing device shown in the present application from still another angle of view;

[0033] Figure 4 A layout plan view of the printing support mechanism included in the printing device shown in the present application from a vertical angle of view, and the printing object is thermal paper with a base;

[0034] Figure 5 A perspective view of the printing support mechanism from one angle of view, in which the bottom plate is omitted;

[0035] Figure 6 A perspective view of the base plate from one angle of view;

[0036] Figure 7 A perspective view of the pressure roller from one angle of view;

[0037] Figure 8 A partial perspective view of the bottom plate, the pressure roller, the guide roller, the support piece, the jamming component and the paper stripping piece after being assembled from one angle of view;

[0038] Figure 9 A perspective view of the pressure roller and the support ring from one angle of view;

[0039] Figure 10 A schematic view of the support ring in one embodiment;

[0040] Figure 11 A Figure 7 An enlarged view of the D1 part in the middle;

[0041] Figure 12 perspective view of the pressure plate from one viewing angle;

[0042] Figure 13 perspective view of the guide roller from one viewing angle;

[0043] Figure 14 perspective view of the guide roller from another viewing angle;

[0044] Figure 15 partial perspective view of the printing device shown in the present invention, omitting the printing mechanism, from one viewing angle;

[0045] Figure 16 perspective view of the paper stripping member from one viewing angle;

[0046] Figure 17 perspective view of the printing support mechanism shown in the present invention, omitting the base plate, from another viewing angle;

[0047] Figure 18 perspective view of the jamming component from one viewing angle;

[0048] Figure 19 perspective view of the guide rod from one viewing angle;

[0049] Figure 20 perspective view of the first tongue from one viewing angle;

[0050] Figure 21 perspective view of the linkage mechanism, auxiliary plate, base plate and detection mechanism from one state;

[0051] Figure 22 perspective view of the linkage mechanism, auxiliary plate and detection mechanism from one state;

[0052] Figure 23 perspective view of the linkage mechanism, auxiliary plate and detection mechanism from another state;

[0053] Figure 24 perspective view of the detection mechanism from one viewing angle;

[0054] Figure 25 perspective view of the first link from one viewing angle;

[0055] Figure 26 top view of the printing device shown in the present invention, omitting the cover of the control mechanism, from one viewing angle;

[0056] Figure 27 layout top view of one printing support mechanism shown in the printing device of the present invention along a vertical viewing angle of the base plate, and the printing object is a baseless thermal sensitive paper;

[0057] Figure 28 A perspective view of the paper stripping member from another viewing angle. DETAILED DESCRIPTION

[0058] The present application will be described in detail with reference to the embodiments illustrated in the drawings, but it should be noted that these embodiments are not intended to limit the present application, and equivalent transformations or substitutions of function, method, or structure made by those of ordinary skill in the art based on these embodiments are within the scope of the present application.

[0059] It should be noted that, in the present application, the transverse direction refers to the direction along the X-axis and / or the Y-axis shown in the drawings, and the longitudinal direction refers to the direction along the Z-axis shown in the drawings. Figure 2 Figure 2 It should be noted that, in the present application, the transverse direction refers to the direction along the X-axis and / or the Y-axis shown in the drawings, and the longitudinal direction refers to the direction along the Z-axis shown in the drawings.

[0060] Please refer to Figures 1 to 28 The present application shows a specific embodiment of a printing support mechanism 10. The printing support mechanism 10 is configured in a printing device (not shown) containing a printing mechanism 20, for cooperating with the printing mechanism 20 to fix a printing object, and for transmitting a recycling object to a waste paper recycling mechanism 30.

[0061] Specifically, the printing device includes a paper roll mounting mechanism 40, the printing mechanism 20, the printing support mechanism 10, the waste paper recycling mechanism 30, and a control mechanism 50 arranged on a base plate 60; wherein the printing mechanism 20 and the printing support mechanism 10 are arranged opposite to each other, and a first conveying area A for transmitting the printing object is formed between the printing mechanism 20 and the printing support mechanism 10, and a second conveying area B for transmitting the recycling object is formed on the side of the printing support mechanism 10 opposite to the printing mechanism 20. In combination with Figure 3 and Figure 26 As shown in the drawings, the paper roll mounting mechanism 40 is not driven by a power mechanism (for example, a first driving motor 51), and a plurality of meshing gears are arranged to transmit the power of the first driving motor 51 to the pressure roller 11 to drive the pressure roller 11 to rotate. A plurality of meshing gears are arranged to transmit the power of the second driving motor 52 to the waste paper recycling mechanism 30 to drive the waste paper recycling mechanism 30 to rotate, and to realize the winding operation of the recycling object (for example, the base paper contained in the thermal sensitive paper with base).

[0062] The printing object is wound to form a hollow core (hereinafter referred to as "the printing object in roll shape"). The printing object in roll shape is sleeved on the paper roll mounting mechanism 40, the printing object passes through the first conveying area A formed between the printing mechanism 20 and the printing support mechanism 10, and the printing object is clamped by the printing mechanism 20 and the printing support mechanism 10, and the printing object is pushed to move to the outlet C formed at the intersection of the first conveying area A and the second conveying area B during the continuous printing operation of the printing mechanism 20.​

[0063] Optional, refer to Figure 4 As shown, in the example where the printing object is thermal paper, after printing is completed, a recyclable object is formed. The recyclable object passes through the second transport area B formed by the printing support mechanism 10 and the printing mechanism 20 (see direction C80), and is rolled up and installed in the waste paper recycling mechanism 30, thereby completing the entire operation process of the printing device. The printing object is kept in a taut state in both the first transport area A and the recyclable object in the second transport area B.

[0064] Optional, refer to Figure 27 As shown, in the example where the printing object is non-stick thermal paper, after printing is completed, the non-stick thermal paper is directly output from the exit C formed at the intersection of the first conveying area A and the second conveying area B, without having to pass through the second conveying area B (as shown in direction C90).

[0065] In this application, the entire operation process is controlled by the control mechanism 50 included in the printing device, and specifically by the first drive motor 51, the second drive motor 52 and the circuit board 53 and other components provided in the control mechanism 50, so as to realize continuous printing operation.

[0066] It should be noted that in this application, the printing object refers to the object to which a printing operation needs to be performed by the printing mechanism 20, such as thermal paper; the recycling object refers to the object remaining after the target object (i.e., the thermal paper) is peeled off after printing, such as the backing paper. For example, if self-adhesive labels are printed by the printing device, the self-adhesive label before printing is the printing object, and the backing paper left after peeling off the label after printing is the recycling object. Specifically, see... Figure 4 and Figure 27 As shown, the printing objects referred to in this embodiment include thermal paper 200 with a backing and thermal paper 300 without a backing. When thermal paper 200 with a backing is used as the printing object, the recycled object is the backing paper (or the backing paper remaining after peeling off the thermal paper with adhesive backing, and the border area with adhesive backing remaining on the backing paper, not shown in this embodiment); when thermal paper 300 without a backing is used, the recycled object is none, and in this case, the paper without a backing passes through the second conveying area B. (See reference...) Figure 4 As shown, after the thermal paper 200 completes the printing job, it forms an output label 201; (Refer to...) Figure 27 As shown, after the non-stick thermal paper 300 completes the printing job, it forms output label 2 301.

[0067] Specifically, participants Figure 2 and Figure 3As shown, the printing mechanism 20 comprises: the printing head 21 and the abutting column 22 arranged from the outer to the inner of the first conveying area A, and the driving column 23 arranged on the side of the printing head 21 away from the printing support mechanism 10, the driving column 23 rotates around the central axis C3 to push the printing head 21 and the compression roller 11 between the adhering state and the separating state. The driving column 23 comprises: the fixed column 231 arranged longitudinally, the driving part 232 sleeved on the outside of the fixed column 231 and rotating around the central axis C3 of the fixed column 231, and the printing support 233 for supporting the fixed column 231; wherein the bottom of the fixed column 231 extends into the bottom plate 60 and the auxiliary plate 61 in sequence, and the fixed assembly of the fixed column 231, the bottom plate 60 and the auxiliary plate 61 is realized through a locking part 136. The driving part 232 forms the driving part 234 on the side of the fixed column 231 close to the printing head 21, and the bottom of the driving part 234 extends downward to form the driving head 235 penetrating the auxiliary plate 61, and the auxiliary plate 61 is provided with an arc-shaped hole 611 for the sliding of the driving head 235. The printing support 233 forms the supporting column 236 on the side of the fixed column 231 away from the printing head 21, the bottom of the supporting column 236 extends into the bottom plate 60 and the auxiliary plate 61 in sequence, and the fixed assembly of the supporting column 236, the bottom plate 60 and the auxiliary plate 61 is realized through a locking part 136; similarly, the abutting column 22 is fixedly assembled with the printing support 233, the bottom end of the abutting column 22 extends into the bottom plate 60, and the fixed assembly of the abutting column 22 and the bottom plate 60 is realized through a locking part 136. The side of the auxiliary plate 61 close to the supporting column 236 is provided with a fixed seat 63, the outside of the driving head 235 is sleeved with the first connecting rod 81, and the printing mechanism 20 further comprises: the elastic part 24 arranged on the bottom of the auxiliary plate 61, and one end of the elastic part 24 is sleeved with the fixed seat 63 and the other end is sleeved with the first connecting rod 81.

[0068] By driving the driving member 232 to rotate around the central axis C3 in the direction C31, the driving part 234 is driven to rotate around the central axis C3 in the direction C31, so that the driving head 235 slides along the profile of the arc-shaped hole 611, the driving part 235 pushes the print head 21 to move in the direction close to the compression roller 11 until the print head 21 and the compression roller 11 are in the state of adhesion, and under the action of the elastic member 24 and the arc-shaped hole 611, the print head 21 and the compression roller 11 remain in the state of adhesion, thereby realizing the adhesion of the print head 21 and the compression roller 11 to clamp the printing object, and based on this, realizing the printing operation on the printing object to prevent the problem of printing disorder, and finally ensuring the printing effect. Similarly, by driving the driving member 232 to rotate around the central axis C3 in the direction C32, the driving part 234 is driven to rotate around the central axis C3 in the direction C32, so that the driving head 235 slides along the profile of the arc-shaped hole 611, the driving part 235 pushes the print head 21 to move in the direction away from the compression roller 11 until the print head 21 and the compression roller 11 are in the state of adhesion, and under the action of the elastic member 24, the print head 21 and the compression roller 11 remain in the state of adhesion, thereby facilitating the printing object to pass through the first conveying area A. In order to drive the driving member 232, a knob 237 is formed at the top of the driving member 232 for driving by the operator, which can be driven by the operator before the printing operation to drive the print head 21 and the compression roller 11 to be in the state of adhesion by the knob 237, and then the printing object is assembled in the first conveying area A, and then the print head 21 and the compression roller 11 are driven to be in the state of adhesion by the knob 237, so as to execute the printing operation on the printing object by the print head 21.

[0069] Referring to Figure 1 , Figure 2 and Figure 26As shown, the waste paper recycling mechanism 30 comprises a recycling wing 31 in U shape and having elasticity, a main shaft (not shown) and a recycling frame 33 for winding the recycling objects; wherein the main shaft is formed at the bottom of the recycling frame 33 and is driven by the second driving motor 52. The bottom plate of the recycling wing 31 is provided with a bottom hole (not shown) for the main shaft to penetrate, and the two side plates of the recycling wing 31 are provided with paper clamping grooves 311. Only one paper clamping groove 311 can be provided, or a plurality of paper clamping grooves 311 can be provided. The recycling objects can be clamped in the paper clamping grooves 311 to fix the recycling objects. In order to facilitate operation, the side plates of the recycling wing 31 are provided with pull rings 312. Only one pull ring 312 can be provided, or a plurality of pull rings 312 can be provided. The present embodiment does not make specific limitation on this. The main shaft extends downward from the bottom of the recycling frame 33 and penetrates the bottom hole and the bottom plate 60 of the recycling frame 33 in sequence, and the bottom of the main shaft is connected with the control motor (not shown) of the control mechanism 50 to be driven by the control motor. At the same time, the main shaft is fixedly connected with the recycling frame 33 when it penetrates the bottom hole of the recycling frame 33. The recycling objects are placed in the paper clamping grooves 311 of the recycling wing 31, and the main shaft is driven to rotate around the center axis C4 by the control motor, so as to drive the whole recycling mechanism 30 to rotate, thereby clamping the recycling objects, so as to realize the transmission of the recycling objects to the waste paper recycling mechanism 30.

[0070] Referring to Figures 4 to 6As shown, the printing support mechanism 10 comprises a pressure roller 11 and a guide roller 12 arranged from outside to inside from the first conveying area A, and a support piece 13 arranged on the top of the pressure roller 11 and the guide roller 12. The support piece 13 comprises a base plate 131 clamping the pressure roller 11 and the guide roller 12 together with the bottom plate 60, and a pressing plate 132 movably separated from the base plate 131. The base plate 131 can be made by casting, stamping or 3D printing process. The base plate 131 forms a side plate 1311 abutting against the bottom plate 60, and a notch 1312 is formed on the edge side of the base plate 131. The pressing plate 132 and the bottom plate 60 jointly limit the pressure roller 11 at a preset position formed by the base plate 131, and after the pressing plate 132 is removed, the pressure roller 11 is removed from the notch 1312. The pressure roller 11 is assembled at the preset position formed by the base plate 131 and the bottom plate 60 clamping the pressure roller 11 together, and is limited at the preset position by the pressing plate 132 arranged on the top of the base plate 131 and the bottom plate 60 arranged on the bottom of the base plate 131. When the pressure roller 11 needs to be disassembled, the pressing plate 132 is removed from the top of the base plate 131, and the pressure roller 11 is removed from the notch 1312 formed on the edge side of the base plate 131, thereby achieving the disassembly of the pressure roller 11. During the disassembly process, only the pressing plate 132 needs to be removed, and other components (such as the guide roller 12 and the jamming assembly 14) included in the printing support mechanism 10 can be disassembled to achieve the disassembly of the pressure roller 11, and the disassembly process is simple. At the same time, when the pressure roller 11 needs to be installed, the pressure roller 11 is transversely inserted into the first fixing hole 1314 from the notch 1312 formed on the edge side of the base plate 131 to assemble the pressure roller 11 at the preset position, and the pressing plate 132 is assembled on the top of the base plate 131, thereby achieving the installation of the pressure roller 11. During the installation process, only the pressure roller 11 and the pressing plate 132 need to be operated, and the base plate 131 remains stationary, so that the step of simultaneously aligning multiple hole positions in the prior art is not needed, and the installation process is simple. Thus, the problem that the disassembly step of the pressure roller 11 is complicated and the pressure roller 11 is inconvenient to disassemble and assemble due to the design of the structure of the existing printing support mechanism is solved.

[0071] In one embodiment, referring to Figure 4 、 Figure 6 and Figure 7As shown, the top end of the compression roller 11 extends axially upward to form a first journal segment 111 penetrating the base plate 131, the base plate 131 is provided with a first fixing hole 1314 for the first journal segment 111 to penetrate, and the first fixing hole 1314 is in communication with the notch 1312. Specifically, the base plate 131 includes a base plate body 1313 transversely arranged at the top of the compression roller 11 and the guide roller 12, and a side plate 1311 longitudinally arranged at one side of the base plate body 1313 close to the first transmission area B, and the base plate body 1313 is arranged at the top of the side plate 1311, and the first fixing hole 1314 is arranged in the base plate body 1313. In this application, the base plate body 1313 and the side plate 1311 can be configured as an integral structure, and the bottom plate 60 is sequentially penetrated from bottom to top through the bottom plate 60 and extends into the bottom of the side plate 1311 by the locking member 136 (such as a screw, etc.), so as to form a detachable connection, and the side plate 1311 can be reliably connected to the parallel base plate 131 and the bottom plate 60. In this way, the detachable connection of the base plate 131 and the bottom plate 60 is realized, and the stability of the assembly of the base plate 131 is ensured.

[0072] Referring to Figure 7 With Figure 8 As shown, the compression roller 11 includes a compression roller body 112, a first journal segment 111 arranged at the top of the compression roller 11, and a second journal segment 113 extending from the bottom of the compression roller 11 to form a radial contraction; wherein the first journal segment 111, the compression roller body 112 and the second journal segment 113 can be configured as an integral structure, or can be configured as a split structure and are sequentially fixed and assembled. The bottom plate 60 is provided with a first opening 64 only for the second journal segment 113 to penetrate, and the first journal segment 111 and the second journal segment 113 penetrate the first fixing hole 1314 arranged in the base plate 131 and the first opening 64 arranged in the bottom plate 60, respectively, to realize the common clamping of the base plate 131 and the bottom plate 60 to the compression roller 11. In this application, the preset position is the position formed when the first journal segment 111 and the second journal segment 113 penetrate the first fixing hole 1314 and the first opening 64, respectively, and the compression roller 11 is clamped by the base plate 131 and the bottom plate 60. Since the second journal segment 113 is radially contracted relative to the compression roller body 112, when the compression roller 11 is assembled, the bottom surface of the compression roller body 112 can be in close contact with the top surface of the bottom plate 60 and abut, thereby preventing the compression roller 11 from sliding off the first opening 64.

[0073] In one embodiment, referring to Figure 7 As shown, the first journal segment 111 extends axially upward along the direction of the compression roller 11 to form a first shaft segment 1111 radially contracted and removable from the notch 1312, and a second shaft segment 1112 penetrating the first fixing hole 1314; wherein the axial upward extension direction of the compression roller 11 is the direction of the first journal segment 111 extending axially upward along the direction of the compression roller 11. Figure 5The opening width of the gap 1312 is less than the diameter of the first fixed hole 1314, so that the lateral width of the first shaft segment 1111 is less than the lateral width of the second shaft segment 1112. Based on this, the pressing roller 11 is moved into the gap 1312 through the first shaft segment 1111 to form the substrate 131 and the bottom plate 60 jointly clamping the pressing roller 11, and when the substrate 131 and the bottom plate 60 jointly clamp the pressing roller 11, since the lateral width of the first shaft segment 1111 is less than the lateral width of the second shaft segment 1112, the second shaft segment 1112 is accommodated in the first fixed hole 1314 and cannot be moved out of the gap 1312, thereby effectively limiting the lateral position of the pressing roller 11, so as to prevent the pressing roller 11 from falling out of the gap 1312 when the pressing roller 11 is assembled.

[0074] Specifically, when the pressing roller 11 needs to be installed, the pressing roller 11 is moved into the gap 1312, i.e., the first shaft segment 1111 is moved into the first fixed hole 1314 from the gap 1312 and moves downward along the axial direction of the pressing roller 11 to ensure that the second shaft segment 1112 penetrates through the first fixed hole 1314 and the second shaft neck segment 113 penetrates through the first opening 64, so as to assemble the pressing roller 11 to the preset position, and after assembly, the pressing plate 132 is assembled on the top of the substrate 131 to hold the pressing roller 11 in the preset position, i.e., the pressing roller 11 is limited by the pressing plate 132 and the bottom plate 60 to the preset position formed by the substrate 131, so as to realize the fixed installation of the pressing roller 11; when the pressing roller 11 needs to be disassembled, the pressing plate 132 assembled on the top of the substrate 131 is removed, the pressing roller 11 moves upward along the axial direction thereof and moves to the corresponding position of the first shaft segment 1111 in the gap 1312, and the pressing roller 11 is moved out by moving the first shaft segment 1111 out of the gap 1312, so as to realize the disassembly of the pressing roller 11. In the entire disassembly and assembly process of the pressing roller 11, only the corresponding operation of the pressing roller 11 from the gap 1312 is needed to realize the disassembly and assembly of the pressing roller 11, and no disassembly and assembly operation is needed for the substrate 131 or other components, so that the disassembly and assembly process of the pressing roller 11 is very simple, thereby solving the technical problems that the disassembly steps of the pressing roller 11 contained in the existing printing support mechanism are complicated and the disassembly and assembly of the pressing roller 11 is inconvenient.

[0075] In one embodiment, referring to FIG. 1, Figure 5 , Figure 7 and Figure 9As shown, the support 13 further comprises a support ring 133 sleeved outside the second shaft segment 1112 and penetrating the first fixing hole 1314, and the support ring 133 is accommodated in the first fixing hole 1314 of the base plate 131. The pressure roller 11 further comprises a rubber ring (not shown) sleeved outside the second journal segment 113 and arranged on the top of the bottom plate 60. By sleeving the support ring 133 outside the first journal segment 111 and the rubber ring outside the second journal segment 113, the axial rotation (i.e., rotation around the central axis C1) of the pressure roller 11 between the base plate 131 and the bottom plate 60 is ensured, thereby effectively ensuring the transmission of the pressure roller 11 to the printing object.

[0076] Referring to Figure 10 As shown, for the fixing mode of the support ring 133, in the present application, the support ring 133 can be fixed on the base plate body 1313. For example, the support ring 133 can be fixed on the base plate body 1313 by means of a plurality of screws. Figure 10 As shown, the support ring 133' comprises a support ring body 1331' sleeved outside the second shaft segment 1112 and a fixing ring 1332' transversely extending from the top end of the support ring body 1331'. When the support ring 133' is assembled, the support ring body 1331' is sleeved outside the second shaft segment 1112, the bottom surface of the fixing ring 1331' is in contact with the top surface of the base plate body 1313 to be supported by the base plate 131, and the pressing plate 132 is assembled on the top of the base plate body 1313 to clamp the fixing ring 1332' together with the base plate body 1313, thereby achieving stable installation of the support ring 133.

[0077] In an embodiment, referring to Figure 7 、 Figure 10 and Figure 11 As shown, the second shaft segment 1112 sequentially forms a first supporting segment 1113 supporting the support ring 133 and a first diameter-reducing segment 1114 for sleeving the support ring 133 in the axial upward extension direction of the pressure roller 11. The support ring 133 is sleeved outside the first diameter-reducing segment 1114, and the top surface of the first supporting segment 1113 is in contact with the bottom surface of the support ring 133 to support the support ring 133 by the first supporting segment 1113, thereby further achieving stable installation of the support ring 133.

[0078] In an embodiment, referring to Figure 12As shown, the pressing plate 132 is provided with a fixing hole 1321, and the second shaft segment 1112 penetrates the first fixing hole 1314 and is accommodated in the fixing hole 1321, so that the second shaft segment 1112 can be arranged not to penetrate the fixing hole 1321 (i.e., to be accommodated in the fixing hole 1321), thereby not only achieving effective positioning of the pressing plate 132 during installation, but also exerting axial downward pressure on the supporting ring 133 by the pressing plate 132, so that the supporting ring 133 is clamped by the pressing plate 132 and the first abutting segment 1113, thereby further achieving stable installation of the supporting ring 133.

[0079] In an embodiment, the second shaft segment 1112 is arranged to penetrate the fixing hole 1321. Figure 9 In an embodiment, the second shaft segment 1112 is arranged to not penetrate the fixing hole 1321. Figure 12 As shown, the fixing hole 1321 is provided for the second shaft segment 1112 to penetrate, and the supporting ring 133 is sequentially provided with a second abutting segment 1333 abutting against the pressing plate 132 and a second diameter-reduced segment 1334 in the axial upward extension direction of the pressing roller 11, wherein the second diameter-reduced segment 1334 is arranged to be reduced in diameter and penetrate the fixing hole 1321. The second abutting segment 1333 is accommodated in the first fixing hole 1314, and the top surface of the second abutting segment 1333 is flush with the top surface of the pressing plate 132, and the second diameter-reduced segment 1334 penetrates or does not penetrate the second shaft segment 1112, thereby abutting against the supporting ring 133 through the second abutting segment 1333, thereby further achieving stable installation of the supporting ring 133.

[0080] In an embodiment, the second shaft segment 1112 is arranged to penetrate the fixing hole 1321. Figure 8 In an embodiment, the second shaft segment 1112 is arranged to not penetrate the fixing hole 1321. Figure 13 In an embodiment, the second shaft segment 1112 is arranged to penetrate the fixing hole 1321. Figure 14As shown, the guide roller 12 comprises a guide roller shaft 121 clamped by the base plate 131 and the bottom plate 60, and a roller body 122 movably sleeved outside the guide roller shaft 121. The bottom of the base plate 131 is formed with a first fixed column (not shown) extending into the inside of the guide roller shaft 121, the top of the guide roller shaft 121 is formed with a fixed hole 1211 for accommodating the first fixed column, and the bottom of the guide roller shaft 121 is formed with a second fixed column 1212 extending into the bottom plate 60 and being radially contracted, and the bottom plate 60 is formed with a second opening 62 for the second fixed column 1212 to pass through. As an optional mode, the second fixed column 1212 can also partially extend into the blind hole (not shown) formed in the bottom plate 60. The first fixed column is accommodated in the fixed hole 1211, and the second fixed column 1212 passes through the second opening 62, so that the guide roller shaft 121 is clamped by the bottom plate 60 and the base plate 131, and the guide roller 12 can rotate axially through the guide roller shaft 121. The roller body 122 is sleeved outside the guide roller shaft 121 and can rotate around the center axis C2 of the roller body 122 to guide the transmission of the printing object in the first transmission area A. In this application, the guide roller shaft 121 and the first fixed column can be configured as an integral structure (i.e., the guide roller shaft 121 and the base plate 131 are configured as an integral structure), and / or the second fixed column 1212 included in the guide roller 12 and the bottom plate 60 are configured as an integral structure.

[0081] In this application, the printing object in roll shape is installed on the paper roll installation mechanism 40, passes through the first transmission area A formed between the printing mechanism 20 and the printing support mechanism 10, and specifically, the guide roller 12 and the abutting column 22 are oppositely arranged, the print head 21 and the pressure roller 11 are oppositely arranged, the printing object first passes through between the guide roller 12 and the abutting column 22, and then passes through between the print head 21 and the pressure roller 11, that is, the first transmission area A is jointly defined by the oppositely arranged guide roller 12 and abutting column 22 and the oppositely arranged print head 21 and pressure roller 11. After the printing object passes through the print head 21 and the pressure roller 11, the driving part 234 is driven to rotate around the center axis C3 in the direction C31 to push the print head 21 to move towards the pressure roller 11 until the print head 21 and the pressure roller 11 are in a state of adhesion, so that the printing object is clamped by the print head 21 and the pressure roller 11, and the print head 21 prints the printing object (it can also be understood that the printing object is pressed on the pressure roller 11 by the print head 21 to be printed by the print head 21). After printing, the printing object is folded back to the second transmission area B from the folding plate 71 included in the paper stripping part 70 arranged at the outer end of the first transmission area A, and the printing object is separated by the folding plate 71 to separate the target object from the printing object after printing and leave the recycling object. The recycling object passes through the second transmission area B and is assembled in the waste paper recycling mechanism 30 in roll shape, thereby realizing the entire printing process in the printing device.

[0082] In one embodiment, referring to Figure 6 With Figure 12 As shown, the substrate body 1313 is sequentially provided with a first step portion 1315 clamping the pressing roller 11 and a second step portion 1316 clamping the guide roller 12 from the outside to the inside of the first conveying area A. The first fixing hole 1314 and the notch 1312 are both provided in the first step portion 1315, the pressing plate 132 is only assembled on the top of the first step portion 1315, the second step portion 1316 is formed with a horizontal abutting surface 13161 abutting the pressing plate 132 on the side close to the first step portion 1315, when the pressing plate 132 is assembled on the top of the first step portion 1315, the side surface 1323 of the pressing plate 132 is in abutment with the abutting surface 13161 of the second step portion 1316 to form a horizontal abutment of the pressing plate 132, thereby limiting the horizontal position of the pressing plate 132, and also playing a pre-fixing role on the pressing plate 132 when the pressing plate 132 is assembled. In order to better facilitate the determination of the assembly position of the pressing plate 132 when assembled, at least one fixing point 13151 is protruded on the top of the first step portion 1315, the pressing plate 132 is provided with a fixing hole position 1322 for the partial penetration or complete penetration of the fixing point 13151, and the pre-fixing of the pressing plate 132 is further realized by the penetration of the fixing point 13151 through the fixing hole position 1322, thereby facilitating the determination of the assembly position of the pressing plate 132. As for the connection mode of the first step portion 1315 and the pressing plate 132, at least one locking member 135 can be continuously penetrated through the pressing plate 132 and the first step portion 1315 to realize the detachable connection of the first step portion 1315 and the pressing plate 132. Of course, other arbitrary connection modes can also be used to facilitate the disassembly and assembly of the pressing roller 11.

[0083] In one embodiment, referring to Figure 15 With Figure 16 As shown, the printing support mechanism 10 further comprises a paper stripping member 70 provided on the outside of the pressing roller 11 and parallel to the pressing roller 11, and the paper stripping member 70 is perpendicular to the bottom plate 60. The paper stripping member 70 comprises a flap 71 at the end of the first conveying area A from the inside to the outside to separate the printing object, and a fixed plate 72 extending inwardly from the top end of the flap 71 to be clamped by the substrate 131 and the pressing roller 11 and sleeved on the outside of the support ring 133. In combination Figure 4As shown, the folding plate 71 is formed at the exit C formed at the intersection of the first conveying area A and the second conveying area B. The folding plate 71 is formed with a strip-shaped protrusion 74 protruding from the inner end to the outer end. The printing object is always tightened by the protrusion 74 during the continuous passing through the first conveying area A and the second conveying area B, and the contact between the printing object and the recycling object and the two bending surfaces of the folding plate 71 is minimized. The folding plate 71 and the fixed plate 72 are configured as an integral structure. The fixed plate 72 is provided with a hole 721 for the supporting ring 133 to pass through, and the fixed plate 72 is sleeved outside the supporting ring 133 through the hole 721, and in order to ensure the stability of the installation of the fixed plate 72, the fixed plate 72 is only arranged on the top of the first step portion 1315, so as to be transversely supported by the second step portion 1316, and the pre-fixing of the fixed plate 72 can also be realized.

[0084] Specifically, referring to Figure 28 As shown, the folding plate 71 is formed with a first bending surface 711 and a second bending surface 712 on one side of the first conveying area A and one side of the second conveying area B, respectively. When the printing object is the base thermal paper 200, the label and the base paper contained in the base thermal paper 200 are in contact with the first bending surface 711, and the label one 201 formed after the base thermal paper 200 is printed is automatically separated from the base paper after being supported by the protrusion 74, only the base paper (i.e., the lower concept of the recycling object) is folded back from the protrusion 74 and in contact with the second bending surface 712 to be folded back to the second conveying area B. When the printing object is the baseless thermal paper 300, the baseless thermal paper 300 is in contact with the first bending surface 711, and the label two 301 formed after the baseless thermal paper 300 is printed is output from the exit C, and is not folded back to the second conveying area B from the protrusion 74, i.e., no base paper passes through the second conveying area B. In addition, the protrusion 74 and the printing mechanism 20 form a gap.

[0085] The printing device further comprises an auxiliary plate 61 arranged at the bottom of the bottom plate 60 and from the inner end of the first conveying area A to the outer end, and the auxiliary plate 61 is detachably connected with the bottom plate 60 by at least one locking member 136, and can be continuously penetrated through the auxiliary plate 61 and the bottom plate 60 by only one locking member 136. The bottom of the folding plate 71 extends downward to form a fixing foot 73, the auxiliary plate 61 is provided with a fixing foot hole 611 for accommodating the fixing foot 73, and the fixing foot 73 is accommodated in the fixing foot hole 611 to be supported by the auxiliary plate 61 against the bottom of the stripping member 70. The fixing plate 72 is sleeved outside the supporting ring 133 through the hole 721 and arranged at the top of the first step portion 1315, the pressing plate 132 is arranged at the top of the fixing plate 72 to be embedded in the first step portion 1315 by the pressing plate 132, and the fixing plate 72 is clamped by the pressing plate 132 and the first step portion 1315 together, and a locking member 135 is continuously penetrated through the pressing plate 132, the fixing plate 72 and the first step portion 1315 and screwed into the internally threaded blind hole 13162 arranged in the first step portion 1315. In this way, the detachable connection of the pressing plate 132, the stripping member 70 and the base plate 131 is realized, and the stable assembly of the stripping member 70 is realized. It should be noted that in the present application, the folding plate 71 included in the stripping member 70 is used to separate the printing object, and is particularly applied to the printing of base thermal paper, that is, the separation of the label and the base paper in the base thermal paper is realized, and when the printing of baseless thermal paper is realized, the stripping member 70 can be omitted.

[0086] Referring to Figure 5 With Figure 6As shown, the side plate 1311 comprises a column 13111 and a guide plate 13112 configured as an integral structure with the column 13111, and the column 13111 is configured as two and arranged at both sides of the guide plate 13112 respectively. The bottom of the column 13111 is provided with a mounting hole (not shown), and a locking member 136 is penetrated through the bottom plate 60 and screwed to the mounting hole (i.e. it can be understood that it is screwed to the column 13111), so as to realize the detachable connection between the base plate 131 and the bottom plate 60. At the same time, the outer side of the side plate 1311 forms a guide surface for guiding the conveying of the recycling object in the second conveying area B and partially abutting with the recycling object, and the guide surface is composed of the surface formed by the outer side of the column 13111 and the surface formed by the outer side of the guide plate 13112. In the present application, the surface formed by the outer side of the column 13111 and the surface formed by the outer side of the guide plate 13112 are configured to be located in the same plane and arc-shaped to completely abut with the recycling object, so as to better guide the conveying of the recycling object in the second conveying area B; or, the surface formed by the outer side of the column 13111 and the surface formed by the outer side of the guide plate 13112 are configured not to be located in the same plane, i.e. the column 13111 is arranged outwardly protruding relative to the guide plate 13112, so that the recycling object only abuts with the surface formed by the outer side of the column 13111 (i.e. the guide surface partially abuts with the recycling object), to form an adjusting space (not labeled) for the lateral adjustment of the recycling object in the second conveying area B.

[0087] In the present embodiment, the vertical posture position of the base plate 131 relative to the bottom plate 60 and the base plate 131 is fixed by the upper and lower locking members 135, 136 respectively, so as to not only simplify the structure, reduce the number of parts, but also reduce the complexity of disassembly.

[0088] In one embodiment, referring to Figure 17 With Figure 18As shown, the printing support mechanism 10 further comprises a jamming assembly 14 disposed between the first conveying area A and the second conveying area B, the jamming assembly 14 being clamped by the bottom plate 60 and the base plate 131. The jamming assembly 14 comprises an adjusting member 141 longitudinally disposed on the bottom plate 60 and a paper stopping member 142 axially moved along the adjusting member 141 driven by the adjusting member 141. The paper stopping member 142 extends laterally into the first conveying area A and the second conveying area B to form a first tongue plate 1421 and a second tongue plate 1422 respectively, the bottom surfaces of the first tongue plate 1421 and the second tongue plate 1422 being located at the same horizontal plane. The axial positions of the first tongue plate 1421 and the second tongue plate 1422 are synchronously adjusted by the adjusting member 141, so that the printing object and the recycling object are respectively limited by the first tongue plate 1421 and the second tongue plate 1422 together with the bottom plate 60. The axial position of the printing object is limited by the first tongue plate 1421 and the bottom plate 60 together, so as to prevent the printing object from moving up and down when being conveyed in the first conveying area A. Similarly, the axial position of the recycling object is limited by the second tongue plate 1422 and the bottom plate 60 together, so as to prevent the recycling object from moving up and down when being conveyed in the second conveying area B. Thus, the axial positions of the printing object and the recycling object are respectively limited in the first conveying area A and the second conveying area B, so as to prevent the printing object and / or the recycling object from moving out of position when being conveyed in the printing device. Thus, the axial position of the printing object is determined when the printing head 21 of the printing mechanism 20 and the pressure roller 11 of the printing support mechanism 10 clamp the printing object, so as to prevent the printing object from being misprinted. Thus, the final printing effect of the printing device is ensured, and the printing object and / or the recycling object in the printing device is prevented from being jammed due to moving out of position during conveying. In addition, the bottom surfaces of the first tongue plate 1421 and the second tongue plate 1422 are located at the same horizontal plane, so as to ensure that the width for the printing object to be conveyed limited by the first tongue plate 1421 and the bottom plate 60 is the same as the width for the recycling object to be conveyed limited by the second tongue plate 1422 and the bottom plate 60.

[0089] In one embodiment, referring to Figure 18As shown, the paper stopper 142 comprises a movable seat 1423 and a first tongue 1421 and a second tongue 1422 extending laterally from the movable seat 1423 into the first conveying area A and the second conveying area B respectively. The adjusting member 141 comprises a guide rod 1411 arranged longitudinally on the bottom plate 60 and sleeved by the movable seat 1423 and a driving rod 1412 for driving the movable seat 1423 to move axially along the guide rod 1411. Specifically, the movable seat 1423 is provided with a third opening (not labeled) and is sleeved outside the guide rod 1411 through the third opening, and the movable seat 1423 is driven by the driving rod 1412 to move axially along the guide rod 1411, so as to drive the first tongue 1421 and the second tongue 1422 extending laterally from the movable seat 1423 to move axially, and then the driving rod 1412 adjusts the movable seat 1423 to a target axial position and fixes the movable seat 1423 at the target axial position, so as to fix the first tongue 1421 and the second tongue 1422 at the target axial position. The target axial position refers to the axial length between the first tongue 1421 and the bottom plate 60 satisfying the width of the printing object, and the axial length between the second tongue 1422 and the bottom plate 60 satisfying the width of the recycling object, and the corresponding axial positions of the first tongue 1421, the second tongue 1422 and the movable seat 1423 respectively. For the manner of driving the movable seat 1423 to move axially by the driving rod 1412, for example, it can be determined by driving the motor and fixing the movable seat 1423 by sleeving a plurality of buckles on the driving rod 1412, and the present embodiment does not make specific limitation thereto, as long as the driving rod 1412 can adjust the axial position of the movable seat 1423.

[0090] In one embodiment, referring to Figure 18As shown, the movable seat 1423 has a fourth opening 1424 to be sleeved on the outside of the drive rod 1412. A first thread 14121 is formed on the outside of the drive rod 1412, and a second thread (not shown) that matches the first thread 14121 is formed on the inside of the fourth opening. By driving the drive rod 1412 to rotate axially along its central axis C5, the movable seat 1423 is moved axially along both the guide rod 1411 and the drive rod 1412, thereby adjusting the axial position of the movable seat 1423. Regarding the lateral extension of the first tongue plate 1421 and the second tongue plate 1422 from the portion of the movable seat 1423 sleeved on the guide rod 1411 or from the portion of the movable seat 1423 sleeved on the drive rod 1412, this embodiment does not specifically limit this. It can be that the first tongue plate 1421 extends laterally from the portion of the movable seat 1423 sleeved on the guide rod 1411 and the second tongue plate 1422 extends laterally from the portion of the movable seat 1423 sleeved on the drive rod 1412, or... The first tongue plate 1421 extends laterally from the portion of the movable seat 1423 that is fitted onto the drive rod 1412, and the second tongue plate 1422 extends laterally from the portion of the movable seat 1423 that is fitted onto the guide rod 1411. Alternatively, both the first tongue plate 1421 and the second tongue plate 1422 extend laterally from the portion of the movable seat 1423 that is fitted onto the guide rod 1411. Or, both the first tongue plate 1421 and the second tongue plate 1422 extend laterally from the portion of the movable seat 1423 that is fitted onto the drive rod 1412. Preferably, the first tongue plate 1421 extends laterally from the portion of the movable seat 1423 that is fitted onto the guide rod 1411, and the second tongue plate 1422 extends laterally from the portion of the movable seat 1423 that is fitted onto the drive rod 1412.

[0091] In one implementation, the reference Figure 5 As shown, the adjusting member 141 further includes a drive input portion 1413 disposed on the top of the drive rod 1412 to drive the drive rod 1412 to rotate axially, and the drive input portion 1413 is formed on the top of the substrate 131. By rotating the drive input portion 1413 along the central axis C5 of the drive rod 1412, the movable seat 1423 is driven to move axially upward or downward, thereby adjusting the axial position of the movable seat 1423, thus solving the problem of inconvenience in operation that requires adjusting the axial position of the movable seat 1423 by adjusting the side gear in the prior art.

[0092] In one implementation, the reference Figure 18As shown, the first tongue plate 1421 and the movable seat 1423 are configured as a split structure, the first tongue plate 1421 is sleeved outside the guide rod 1411, and the movable seat 1423 is formed by a first movable ring part 14231 and a second movable ring part 14232 which are sleeved outside the guide rod 1411 and clamp the first tongue plate 1421. The first tongue plate 1421 is clamped by the first movable ring part 14231 and the second movable ring part 14232, so that the axial movement of the first tongue plate 1421 is driven by the axial movement of the movable seat 1423, and the axial position of the first tongue plate 1421 is limited by the first movable ring part 14231 and the second movable ring part 14232.

[0093] In an embodiment, referring to Figure 19 As shown, the guide rod 1411 is formed with a fixed shaft section 14111 and a limiting shaft section 14112 in the upward axial direction of the guide rod 1411, and the first tongue plate 1421 is sleeved outside the limiting shaft section 14112 and moves axially along the limiting shaft section 14112. The limiting shaft section 14112 is radially contracted relative to the fixed shaft section 14111, so that the top surface of the fixed shaft section 14111 can abut against the bottom surface of the first tongue plate 1421 (i.e., the first tongue plate 1421 and the movable seat 1423 are configured as a whole structure) or the bottom surface of the second movable ring part 14232 (i.e., the first tongue plate 1421 and the movable seat 1423 are configured as a split structure), which can effectively prevent the first tongue plate 1421 from moving to an excessively low axial position (i.e., a position with an excessively low axial length between the first tongue plate 1421 and the bottom plate 60).

[0094] In an embodiment, referring to Figures 18 to 20As shown, to facilitate the passing of the print object through the first conveying area A, the first tongue plate 1421 is configured to be movable to intrude into the first conveying area A, and in the state that the print head 21 is separated from the pressure roller 11, the first tongue plate 1421 does not intrude into the first conveying area A (i.e., the first tongue plate 1421 is retracted inside the base plate 131); in the state that the print head 21 is attached to the pressure roller 11, the first tongue plate 1421 intrudes into the first conveying area A to jointly limit the print object with the base plate 60. Exemplarily, the side of the limiting shaft segment 14112 forms a first limiting surface 14113 limiting the axial rotation of the first tongue plate 1421, the first movable ring part 14231 and the second movable ring part 14232 are movably sleeved with the limiting shaft segment 14112, i.e., the first movable ring part 14231 and the second movable ring part 14232 remain stationary when the limiting shaft segment 14112 rotates axially (or vice versa, i.e., the first movable ring part 14231 and the second movable ring part 14232 can rotate axially along the central axis C6 where the limiting shaft segment 14112 is located), and the first tongue plate 1421 is sleeved outside the limiting shaft segment 14112 and is matched with the first limiting surface 14113 at the hole 14211 with limiting edge, i.e., the first tongue plate 1421 can move axially along the limiting shaft segment 14112 but cannot rotate axially along the limiting shaft segment 14112, and the first tongue plate 1421 rotates with the limiting shaft segment 14112 when the limiting shaft segment 14112 rotates axially along the central axis C6. The guide rod 1411 drives the guide rod 1411 to rotate axially through the linkage mechanism 80 formed below the base plate 60 to drive the first tongue plate 1421 to intrude into the first conveying area A. When the first tongue plate 1421 intrudes into the first conveying area A, the print object is jointly limited by the first tongue plate 1421 and the base plate 60.

[0095] In one embodiment, referring to Figure 19 and Figures 21 to 23As shown, the linkage mechanism 80 comprises a first connecting rod 81 arranged below the bottom plate 60, and a second connecting rod 82 movably connected with one end of the first connecting rod 81. The other end of the first connecting rod 81 away from the second connecting rod 82 is movably connected with the printing mechanism 20, and the other end of the second connecting rod 82 away from the first connecting rod 81 is movably connected with the guide rod 1411. Specifically, one end of the first connecting rod 81 is sleeved outside the drive head 235, the other end of the first connecting rod 81 protrudes a protrusion 811, one end of the second connecting rod 82 is sleeved outside the protrusion 811, the other end of the second connecting rod 82 is sleeved outside a guide portion 14114 of the guide rod 1411 extending axially downward and penetrating through the bottom plate 60, one end of the elastic member 24 is sleeved outside the fixed seat 63, and the other end of the elastic member 24 is sleeved outside the first connecting rod 81 sleeved with the drive head 235. The side of the guide portion 14114 forms a second limiting surface 14115, and one end of the second connecting rod 82 is provided with a guide hole 821 sleeved outside the guide portion 14114 and matched with the second limiting surface 14115, so that the guide rod 1411 is driven to rotate around the central axis C6 by the rotation of the second connecting rod 82 around the central axis C6. The first connecting rod 81 is specifically arranged below the auxiliary plate 61, and the auxiliary plate 61 protrudes downward an auxiliary protrusion 612, the first connecting rod 81 is provided with an auxiliary hole 812 penetrating through the auxiliary protrusion 612, and the first connecting rod 81 is sleeved outside the auxiliary protrusion 612 and can rotate around the central axis (not labeled) of the auxiliary protrusion 612.

[0096] When the printing head 21 is separated from the pressure roller 11, the knob 237 is rotated around the central axis C3 in the direction C32, the drive head 235 is driven to rotate along the arc-shaped hole 611 to the side close to the support column 236, the first connecting rod 81 is driven to rotate around the central axis of the auxiliary protrusion 612 in the direction C72, the second connecting rod 82 is driven to rotate around the central axis C6 in the direction C61, so that the first tongue plate 1421 is in a state of being retracted inside the base plate 131. When the printing head 21 is in contact with the pressure roller 11, the knob 237 is rotated around the central axis C3 in the direction C31, the drive head 235 is driven to rotate along the arc-shaped hole 611 to the side away from the support column 236, the first connecting rod 81 is driven to rotate around the central axis of the auxiliary protrusion 612 in the direction C71, the second connecting rod 82 is driven to rotate around the central axis C6 in the direction C62, so that the first tongue plate 1421 moves into the first conveying area A, and then the printing object is limited by the first tongue plate 1421 and the bottom plate 60.

[0097] In one embodiment, the first connecting rod 81 is arranged below the auxiliary plate 61, and the auxiliary plate 61 protrudes downward an auxiliary protrusion 612, the first connecting rod 81 is provided with an auxiliary hole 812 penetrating through the auxiliary protrusion 612, and the first connecting rod 81 is sleeved outside the auxiliary protrusion 612 and can rotate around the central axis (not labeled) of the auxiliary protrusion 612. Figure 24 The second connecting rod 82 is movably connected with one end of the first connecting rod 81, and the other end of the second connecting rod 82 away from the first connecting rod 81 is movably connected with the guide rod 1411. Figure 25As shown, the first connecting rod 81 extends laterally to form a striking end 813 at one end of the second connecting rod 82, and the printing support mechanism 10 further comprises a detection mechanism 90, which comprises a trigger controller 91 arranged below the bottom plate 60, and a detection unit 92 arranged between the printing support mechanism 10 and the printing mechanism 20 to detect the printing object being conveyed in the first conveying area A, and the detection unit 92 is activated after the trigger controller 91 is struck by the striking end 813. Specifically, the trigger controller 91 is assembled below a mounting plate 93, the detection unit 92 is assembled above the mounting plate 93, and the mounting plate 93 is assembled below the bottom plate 60. The trigger controller 91 comprises a reset switch 911 arranged at one end of the second connecting rod 82, and a terminal block 912 arranged at the side of the reset switch 911 away from the second connecting rod 82; wherein the reset switch 911 forms a striking surface 9111 at the side of the second connecting rod 82. When the printing head 21 and the pressure roller 11 are driven to be in the abutting state, the first connecting rod 81 rotates around the center axis of the auxiliary protrusion 612 along the direction C71 to move from the striking end 813 to the direction close to the reset switch 911, and the striking end 813 strikes the striking surface 9111 to activate the reset switch 911, the reset switch 911 sends a signal to the terminal block 912, and then the detection unit 92 detects the printing object being conveyed in the first conveying area A, so that when the printing mechanism 20 and the printing support mechanism 10 clamp the printing object, the detection unit 92 can detect the printing object, and the printing operation can be performed on the first label when it is output from the outlet C, so as to prevent the waste of the printing object, thereby solving the problem of paper waste and low efficiency in the prior art when a new roll-shaped printing paper (i.e. a lower concept of the printing object) is replaced. The printing paper needs to be tested first.

[0098] Referring to Figure 3 With Figure 26 As shown, the control mechanism 50 comprises a first driving motor 51, a second driving motor 52 and a circuit board 53; wherein the first driving motor 51 and the second driving motor 52 are connected with the circuit board 51. The bottom of the guide roller 12 is provided with a first gear assembly 54, and the first driving motor 51 drives the first gear assembly 54 to rotate to drive the guide roller to rotate; the bottom of the paper roll mounting mechanism 40 is provided with a second gear assembly 55, and the second driving motor 52 drives the second gear assembly 55 to drive the paper roll mounting mechanism 40 to rotate. In combination Figure 1 As shown, the control mechanism 50 further comprises a cover 57 which wholly covers the first driving motor 51, the second driving motor 52 and the circuit board 53, and the cover 57 is fixed with the bottom plate 60 by fasteners such as screws.

[0099] Based on the foregoing embodiments of the printing support mechanism, the present embodiment also discloses a printing device, which comprises the foregoing printing support mechanism 10, the printing mechanism 20 and the paper roll mounting mechanism 40, and can be particularly applied to the printing operation of the baseless thermal paper. Details can be referred to the foregoing description and will not be repeated here.

[0100] Based on the foregoing embodiments of the printing support mechanism, the present embodiment also discloses a printing device, which comprises the foregoing printing support mechanism 10, the printing mechanism 20, the waste paper recycling mechanism 30 and the paper roll mounting mechanism 40, and can be particularly applied to the printing operation of the baseless thermal paper. Details can be referred to the foregoing description and will not be repeated here.

[0101] The above detailed description is only a specific description of the feasible embodiments of the present application, and is not used to limit the protection scope of the present application. Any equivalent embodiments or changes made without departing from the spirit of the present application shall be included in the protection scope of the present application.

[0102] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0103] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A printing support mechanism configured in a printing device comprising a printing mechanism, the printing support mechanism and the printing mechanism are oppositely arranged on a base plate, and the printing support mechanism forms a first conveying area for conveying a printing object, and a second conveying area for conveying a recycling object on a side of the printing support mechanism opposite to the printing mechanism; characterized in that The printing support mechanism comprises: A pressure roller and a guide roller arranged from the outside to the inside of the first conveying area, a support arranged on the top of the pressure roller and the guide roller, and a paper jam assembly arranged between the first conveying area and the second conveying area; The support comprises: a base plate for clamping the pressure roller and the guide roller together with the base plate, and a pressing plate movably separated from the base plate, the paper jam assembly is clamped together by the base plate and the base plate, the paper jam assembly comprises: an adjusting member arranged longitudinally on the base plate and a paper stopping member driven by the adjusting member to move longitudinally along the adjusting member; The paper stopping member comprises: a movable seat and a first tongue plate and a second tongue plate respectively extending from the movable seat into the first conveying area and the second conveying area, the bottom surfaces of the first tongue plate and the second tongue plate are located on the same horizontal plane, the axial positions of the first tongue plate and the second tongue plate are adjusted synchronously by the adjusting member to restrict the printing object and the recycling object by the first tongue plate and the second tongue plate together with the base plate respectively; The adjusting member comprises: a guide rod arranged longitudinally on the base plate and sleeved with the movable seat, and a driving rod for driving the movable seat to move axially along the guide rod, the guide rod is driven to rotate axially by a linkage mechanism located below the base plate; The linkage mechanism comprises: a first connecting rod arranged below the base plate, and a second connecting rod movably connected to one end of the first connecting rod, the end of the first connecting rod away from the second connecting rod is movably connected to the printing mechanism, and the end of the second connecting rod away from the first connecting rod is movably connected to the guide rod; The base plate forms a side plate abutting against the base plate, the edge of the base plate is laterally formed with a gap, the pressure roller is restricted at a preset position on the base plate by the pressing plate and the base plate, and the pressure roller is removed from the gap after removing the pressing plate.

2. The print support mechanism of claim 1, wherein, The top end of the pressure roller extends axially upward to form a first journal segment penetrating the base plate, the base plate is provided with a first fixed hole for the first journal segment to penetrate, and the first fixed hole is communicated with the gap; The preset position is formed when the first journal segment penetrates the first fixed hole, and the pressure roller is clamped by the base plate and the base plate.

3. The print support mechanism of claim 2, wherein, The first journal segment sequentially forms a first shaft segment which is radially reduced and can be removed from the gap, and a second shaft segment penetrating the first fixed hole in the upward axial extension direction of the pressure roller, and the opening width of the gap is smaller than the diameter of the first fixed hole.

4. The print support mechanism of claim 3, wherein, The support further comprises: a support ring sleeved on the outside of the second shaft segment and penetrating the first fixed hole.

5. The print support mechanism of claim 4, wherein, The second shaft segment sequentially forms a first abutting segment abutting against the support ring and a first radially reduced segment for sleeving the support ring in the upward axial extension direction of the pressure roller.

6. The print support mechanism of claim 5, wherein, The pressing plate is provided with a fixed hole, and the second shaft segment penetrates the first fixed hole and is accommodated in the fixed hole.

7. The print support mechanism of claim 6, wherein, The fixed mouth is penetrated by the second shaft section, and the supporting ring sequentially forms a second abutting section abutting against the pressing plate and a second radial contraction section penetrating the fixed mouth in the axial upward extension direction of the pressing roller.

8. The print support mechanism of claim 4, wherein, The printing supporting mechanism further comprises a paper stripping member arranged outside the pressing roller. The paper stripping member comprises a folding plate at the inner end of the first conveying area to separate the printing object, and a fixed plate extending inward from the top end of the folding plate to be clamped by the base plate and the pressing plate and sleeved outside the supporting ring.

9. The print support mechanism of claim 8, wherein, The side plate comprises a column body and a side plate configured as an integral structure with the column body, and a locking member penetrates the bottom plate and is screwed to the column body.

10. The print support mechanism of claim 1, wherein, The bottom plate is provided with a first opening, and the bottom of the pressing roller extends to form a second shaft neck section penetrating the first opening.

11. The print support mechanism of claim 1, wherein, The guide roller comprises a guide roller shaft clamped by the base plate and the bottom plate, and a roller body movably sleeved outside the guide roller shaft.

12. The print support mechanism of claim 11, wherein, The guide roller shaft, the bottom plate and / or the base plate are configured as an integral structure.

13. A printing device, characterized by The printing supporting mechanism, the printing mechanism, the paper roll mounting mechanism, the paper recycling mechanism, and the paper stripping member. The printing supporting mechanism, the printing mechanism, the paper roll mounting mechanism, the paper recycling mechanism, and the paper stripping member.

14. A printing device, characterized by The printing supporting mechanism, the printing mechanism, the paper roll mounting mechanism, the paper recycling mechanism, and the paper stripping member. ​

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