Anti-jamming structure of printer plastic gear

Abstract

The utility model provides an anti-jamming structure for a plastic gear of a printer, belongs to the technical field of mechanical transmission, and aims to solve the problem that the application range is limited as the conventional anti-jamming structure is difficult to adapt to the installation of gears at different intervals. Comprising a printer rotating shaft, a connecting rotating shaft, an anti-clamping main body, an anti-clamping sliding arm, an adjusting sliding block, an anti-clamping spring, a maintenance protection mechanism and an anti-clamping adjusting mechanism, the connecting rotating shaft rotates on the left side of the printer rotating shaft; the anti-blocking main body is rotationally connected to the front side of the printer rotating shaft; the anti-clamping sliding arm is rotationally connected to the front side of the connecting rotating shaft; the adjusting sliding block is connected into the anti-blocking body in a sliding mode. The anti-clamping spring is fixedly connected to the left end face of the adjusting sliding block. The maintenance protection mechanism is arranged on the anti-blocking main body; and the anti-blocking adjusting mechanism is arranged in the anti-blocking main body. And through the maintenance protection mechanism, the maintenance efficiency of personnel on the anti-jamming structure is guaranteed, and through the anti-jamming adjusting mechanism, the anti-jamming structure is convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical transmission technology, and more specifically, it relates to an anti-jamming structure for plastic gears in printers. Background Technology

[0002] The printer uses gears and other transmission components to achieve its printing function. The gears are made of plastic. To prevent the gears from jamming and being damaged during use, the two sets of plastic gears are installed with an anti-jamming structure. The two sets of plastic gears are installed on the anti-jamming structure and mesh to ensure the safety of the plastic gears during use.

[0003] According to CN201720400998.3, this utility model discloses a drive motor gear anti-jamming device, including a drive motor, a drive gear fixedly connected to the motor shaft of the drive motor, a driven gear meshing with the drive gear through a gear structure, and a main bearing seat on the drive gear on the outer right end of the motor shaft. The driven gear is fixedly connected to the drive shaft through the driven bearing seat, and a sleeve shaft is fixedly installed on the outer side of the driven bearing seat. The lower end of the sleeve shaft has a movable groove, the top of the movable groove is fixedly connected to an inner shaft through a spring, and the lower end of the inner shaft is fixedly connected to the main bearing seat. In this structure, when the drive motor is under heavy load, there is a large thrust between the two gear structures, causing the inner shaft to move outward within the sleeve shaft. The spring is always in a stretched state, and the structure between the locking block and the stop block prevents the inner shaft from falling off. This reduces the friction between the two gear structures while ensuring meshing, resulting in smooth operation.

[0004] Based on the above, existing anti-jamming structures generally use a spring to drive a telescopic structure to prevent gear jamming. Two sets of gears are installed on both sides of the telescopic structure. However, due to the limited length and force adjustment range of the telescopic structure, when anti-jamming is installed on gears at different distances, the anti-jamming structure is difficult to adapt to the installation of gears with different spacings, thus limiting its application range. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an anti-jamming structure for plastic gears in printers. This solves the problem that existing anti-jamming structures generally use a spring to drive a telescopic structure to prevent gear jamming. Two sets of gears are installed on both sides of the telescopic structure. However, due to the limited range of length and force adjustment of the telescopic structure, when anti-jamming is installed on gears at different distances, the anti-jamming structure is difficult to adapt to the installation of gears with different spacings, thus limiting its application range.

[0006] The purpose and effect of this utility model's anti-jamming structure for printer plastic gears are achieved through the following specific technical means:

[0007] An anti-jamming structure for a printer's plastic gear includes a printer shaft, a connecting shaft, an anti-jamming body, an anti-jamming sliding arm, a protective door, an adjusting slider, an anti-jamming spring, a maintenance and protection mechanism, and an anti-jamming adjustment mechanism. The connecting shaft rotates to the left side of the printer shaft. The anti-jamming body is rotatably connected to the front side of the printer shaft. The anti-jamming sliding arm is rotatably connected to the front side of the connecting shaft and slidably connected to the left side inside the anti-jamming body. The protective door rotates to the front end face of the anti-jamming body. The adjusting slider is slidably connected to the right side inside the anti-jamming body. Two sets of anti-jamming springs are provided, each fixedly connected to the left end face of the adjusting slider and elastically connected to the right end face of the anti-jamming sliding arm, and sliding within the anti-jamming body. The maintenance and protection mechanism is located on the anti-jamming body. The anti-jamming adjustment mechanism is located on the right side inside the anti-jamming body.

[0008] Furthermore, the maintenance and protection mechanism includes: a main gear, a synchronizing gear, and a connecting gear; the main gear is coaxially and fixedly connected to the rear side of the printer shaft; the synchronizing gear is coaxially and fixedly connected to the front side of the printer shaft; the connecting gear is coaxially and fixedly connected to the front side of the connecting shaft, and the synchronizing gear and the connecting gear mesh together to form a gear transmission mechanism.

[0009] Furthermore, the maintenance and protection mechanism also includes: a protective rotating shaft and a protective torsion spring; the protective rotating shaft is rotatably connected to the upper inside of the front end face of the anti-jamming body, and the middle position of the protective rotating shaft is fixedly connected to the protective door; the protective torsion spring is fixedly connected to the upper inside of the front end face of the anti-jamming body, and the protective torsion spring and the protective rotating shaft are elastically connected.

[0010] Furthermore, the maintenance and protection mechanism also includes: an operating groove, a protective lever, and a protective spring; the operating groove is located on the lower side of the front end face of the anti-jamming body; the protective lever is slidably connected to the lower side of the front end face of the anti-jamming body and slides inside the operating groove; the protective spring is fixedly connected to the lower side of the front end face of the anti-jamming body and is elastically connected to the lower end face of the protective lever.

[0011] Furthermore, the maintenance and protection mechanism also includes: a protective socket and a protective pin; the protective socket is located on the left side of the lower end face of the protective door; the protective pin is fixedly connected to the upper end face of the protective block, and the protective socket and the protective pin are connected by insertion.

[0012] Furthermore, the anti-jamming adjustment mechanism includes a power rotating block and a power groove; the power rotating block is rotatably connected to the inside of the right side of the front end face of the anti-jamming body; the power groove is opened inside the power rotating block and rotates on the front end face of the anti-jamming body.

[0013] Furthermore, the anti-jamming adjustment mechanism also includes: a power bevel gear, an adjustment shaft, and an adjustment bevel gear; the power bevel gear is coaxially and fixedly connected to the rear side of the power rotating block, and the power bevel gear rotates inside the right side of the anti-jamming body; the adjustment shaft is rotatably connected inside the right side of the anti-jamming body; the adjustment bevel gear is coaxially and fixedly connected to the right side of the adjustment shaft, and the power bevel gear and the adjustment bevel gear mesh together to form a bevel gear transmission mechanism.

[0014] Furthermore, the anti-jamming adjustment mechanism also includes: an adjustment thread hole and an adjustment screw; the adjustment thread hole is located in the middle of the right end face of the adjustment slider; the adjustment screw is coaxially fixedly connected to the left side of the adjustment shaft, and the adjustment screw is threadedly connected inside the adjustment thread hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model employs a maintenance and protection mechanism, enabling maintenance and replacement of the anti-jamming spring inside the anti-jamming body by opening the protective door. Workers can directly press the protective lever to open the protective door, facilitating maintenance of the anti-jamming structure and ensuring the efficiency of maintenance.

[0017] This utility model employs an anti-jamming adjustment mechanism, which allows the operator to rotate the power block, causing the anti-jamming sliding arm, adjusting slider, and anti-jamming spring to slide and adjust the distance between the anti-jamming sliding arm and the adjusting slider. This, in turn, adjusts the distance between the gears, facilitating the adjustment of the anti-jamming connection distance based on the gear position. Simultaneously, it adjusts the meshing force of the synchronous gear and the connecting gear, making it convenient for the operator to install and adjust the anti-jamming structure and gears, and facilitating the use of the anti-jamming structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the anti-jamming structure connection of this utility model.

[0019] Figure 2 This is a schematic diagram of the anti-jamming structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the disassembled anti-jamming structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the overall structure of the maintenance and protection mechanism of this utility model.

[0022] Figure 5 This is a structural schematic diagram of the maintenance and protection mechanism of this utility model.

[0023] Figure 6 This is a schematic diagram of the overall structure of the anti-jamming adjustment mechanism of this utility model.

[0024] Figure 7 This is a structural schematic diagram of the anti-jamming adjustment mechanism of this utility model.

[0025] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0026] 1. Printer spindle; 2. Main body gear; 3. Synchronizing gear; 4. Connecting spindle; 5. Connecting gear; 6. Anti-jamming body; 601. Operating groove; 7. Anti-jamming sliding arm; 8. Protective spindle; 801. Protective torsion spring; 9. Protective door; 901. Protective insertion hole; 10. Protective break block; 1001. Protective spring; 1002. Protective pin; 11. Adjusting slider; 1101. Adjusting screw hole; 12. Anti-jamming spring; 13. Power rotating block; 1301. Power groove; 1302. Power bevel gear; 14. Adjusting spindle; 1401. Adjusting bevel gear; 1402. Adjusting screw. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. Example 1

[0028] As attached Figure 1 To be continued Figure 5 As shown:

[0029] This utility model provides an anti-jamming structure for a printer's plastic gears, including a printer shaft 1, a connecting shaft 4, an anti-jamming body 6, an anti-jamming sliding arm 7, a protective door 9, an adjusting slider 11, anti-jamming springs 12, and a maintenance and protection mechanism. The connecting shaft 4 rotates to the left side of the printer shaft 1; the anti-jamming body 6 is rotatably connected to the front side of the printer shaft 1; the anti-jamming sliding arm 7 is rotatably connected to the front side of the connecting shaft 4 and slidably connected to the left side inside the anti-jamming body 6; the protective door 9 rotates to the front end face of the anti-jamming body 6; the adjusting slider 11 is slidably connected to the right side inside the anti-jamming body 6; two sets of anti-jamming springs 12 are provided, each set fixedly connected to the left end face of the adjusting slider 11, and each set elastically connected to the right end face of the anti-jamming sliding arm 7, and each set sliding inside the anti-jamming body 6; the maintenance and protection mechanism is provided on the anti-jamming body 6.

[0030] The maintenance and protection mechanism includes: a main gear 2, a synchronous gear 3, and a connecting gear 5. The main gear 2 is coaxially fixedly connected to the rear side of the printer shaft 1; the synchronous gear 3 is coaxially fixedly connected to the front side of the printer shaft 1; and the connecting gear 5 is coaxially fixedly connected to the front side of the connecting shaft 4. The synchronous gear 3 and the connecting gear 5 mesh together to form a gear transmission mechanism. During use, the printer shaft 1 rotates, driving the main gear 2 and the synchronous gear 3 to rotate. The synchronous gear 3 rotates, driving the meshing connecting gear 5 to rotate. When the synchronous gear 3 and the connecting gear 5 jam, the connecting gear 5 moves. The movement of the connecting gear 5 causes the anti-jamming sliding arm 7 to slide inside the anti-jamming body 6, temporarily disengaging the connecting gear 5 from the synchronous gear 3, thus ensuring the integrity of the synchronous gear 3 and the connecting gear 5.

[0031] The maintenance and protection mechanism also includes: a protective rotating shaft 8 and a protective torsion spring 801; the protective rotating shaft 8 is rotatably connected to the upper inside of the front end face of the anti-jamming body 6, and the middle position of the protective rotating shaft 8 is fixedly connected to the protective door 9; the protective torsion spring 801 is fixedly connected to the upper inside of the front end face of the anti-jamming body 6, and the protective torsion spring 801 and the protective rotating shaft 8 are elastically connected. During use, when the operator turns the protective door 9, it drives the protective rotating shaft 8 to rotate, and the rotation of the protective rotating shaft 8 drives the protective torsion spring 801 to extend and retract, and the elastic force of the protective torsion spring 801 drives the protective door 9 to rotate and open.

[0032] The maintenance and protection mechanism also includes: an operating groove 601, a protective lever 10, and a protective spring 1001; the operating groove 601 is located on the lower side of the front end face of the anti-jamming body 6; the protective lever 10 is slidably connected to the lower side of the front end face of the anti-jamming body 6, and slides inside the operating groove 601; the protective spring 1001 is fixedly connected to the lower side of the front end face of the anti-jamming body 6, and the lower end face of the protective spring 1001 and the protective lever 10 are elastically connected. During use, the operator inserts their finger into the operating groove 601 and moves the protective lever 10 to slide, and the sliding of the protective lever 10 causes the protective spring 1001 to extend and retract.

[0033] The maintenance and protection mechanism also includes: a protective socket 901 and a protective pin 1002; the protective socket 901 is located on the left side of the lower end face of the protective door 9; the protective pin 1002 is fixedly connected to the upper end face of the protective lever 10, and the protective socket 901 and the protective pin 1002 are connected by insertion. During use, the protective spring 1001 causes the protective lever 10 to slide, and the sliding of the protective lever 10 causes the protective pin 1002 to slide. The protective pin 1002 is inserted into the protective socket 901, thereby fixing the protective door 9 in the closed position.

[0034] The specific usage and function of this first embodiment are as follows:

[0035] During use, the printer shaft 1 rotates, driving the main gear 2 and the synchronous gear 3 to rotate. The synchronous gear 3 rotates, driving the meshing connecting gear 5 to rotate. When the synchronous gear 3 and the connecting gear 5 are engaged, the connecting gear 5 moves. The movement of the connecting gear 5 causes the anti-jamming sliding arm 7 to slide inside the anti-jamming main body 6, temporarily disengaging the connecting gear 5 from the synchronous gear 3, ensuring the integrity of the synchronous gear 3 and the connecting gear 5. The operator turns the protective door 9, causing the protective shaft 8 to rotate. The rotation of the protective shaft 8 causes the protective torsion spring 801 to extend and retract. The elastic force of the protective torsion spring 801 causes the protective door 9 to rotate and open. The operator inserts their finger into the operating groove 601 and turns the protective lever 10 to slide. The sliding of the protective lever 10 causes the protective spring 1001 to extend and retract. The elastic force of the protective spring 1001 causes the protective lever 10 to slide. The sliding of the protective lever 10 causes the protective pin 1002 to slide. The protective pin 1002 is inserted into the protective socket 901, thereby fixing the protective door 9 in the closed position, making it convenient for the operator to maintain the internal structure of the anti-jamming mechanism. Example 2

[0036] Based on Example 1, as shown in the appendix Figure 5 and attached Figure 7 As shown:

[0037] This utility model provides an anti-jamming structure for a printer's plastic gear, and also includes an anti-jamming adjustment mechanism. The anti-jamming adjustment mechanism is located inside the right side of the anti-jamming body 6. The anti-jamming adjustment mechanism includes a power rotating block 13 and a power groove 1301. The power rotating block 13 is rotatably connected to the inside of the right side of the front end face of the anti-jamming body 6. The power groove 1301 is formed inside the power rotating block 13 and rotates on the front end face of the anti-jamming body 6. During use, the operator inserts a tool into the power groove 1301 and turns the power groove 1301 to rotate, thereby driving the power rotating block 13 to rotate.

[0038] The anti-jamming adjustment mechanism also includes: a power bevel gear 1302, an adjustment shaft 14, and an adjustment bevel gear 1401. The power bevel gear 1302 is coaxially fixedly connected to the rear side of the power rotating block 13, and rotates inside the right side of the anti-jamming body 6. The adjustment shaft 14 is rotatably connected inside the right side of the anti-jamming body 6. The adjustment bevel gear 1401 is coaxially fixedly connected to the right side of the adjustment shaft 14. The power bevel gear 1302 and the adjustment bevel gear 1401 mesh together to form a bevel gear transmission mechanism. During use, the rotation of the power rotating block 13 drives the power bevel gear 1302 to rotate, the rotation of the power bevel gear 1302 drives the meshing adjustment bevel gear 1401 to rotate, and the rotation of the adjustment bevel gear 1401 drives the adjustment shaft 14 to rotate.

[0039] The anti-jamming adjustment mechanism also includes: an adjustment screw hole 1101 and an adjustment screw 1402; the adjustment screw hole 1101 is located in the middle of the right end face of the adjustment slider 11; the adjustment screw 1402 is coaxially fixedly connected to the left side of the adjustment shaft 14, and the adjustment screw 1402 is threadedly connected inside the adjustment screw hole 1101. During use, the adjustment shaft 14 rotates, causing the adjustment screw 1402 to rotate. The adjustment screw 1402 rotates inside the adjustment screw hole 1101, causing the adjustment slider 11 to slide. The sliding of the adjustment slider 11 causes the anti-jamming sliding arm 7 and the anti-jamming spring 12 to slide, adjusting the distance of the anti-jamming installation of the gear.

[0040] The specific usage and function of this second embodiment are as follows:

[0041] During use, the operator inserts the tool into the power groove 1301, turns the power groove 1301 to rotate, which drives the power rotating block 13 to rotate. The rotation of the power rotating block 13 drives the power bevel gear 1302 to rotate. The rotation of the power bevel gear 1302 drives the meshing adjusting bevel gear 1401 to rotate. The rotation of the adjusting bevel gear 1401 drives the adjusting shaft 14 to rotate. The rotation of the adjusting shaft 14 drives the adjusting screw 1402 to rotate. The adjusting screw 1402 rotates inside the adjusting screw hole 1101, which drives the adjusting slider 11 to slide. The sliding of the adjusting slider 11 drives the anti-jamming sliding arm 7 and the anti-jamming spring 12 to slide, thereby achieving the distance for anti-jamming installation of the adjusting gear.

[0042] The following points should be noted in this article:

[0043] 1. The accompanying drawings of this embodiment only involve structures related to the embodiments of this disclosure; other structures can be referred to in general design.

[0044] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0045] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A kind of anti-jamming structure of printer plastic gear, including printer rotating shaft (1), connecting rotating shaft (4), anti-jamming main body (6), anti-jamming slide arm (7), protective door (9), adjusting slider (11), anti-jamming spring (12), maintenance protection mechanism and anti-jamming adjusting mechanism;The connecting rotating shaft (4) rotates in the left side of printer rotating shaft (1);Its characterized in that: The anti-blocking main body (6) is rotationally connected to the front side of the printer rotating shaft (1); the anti-blocking sliding arm (7) is rotationally connected to the front side of the connecting rotating shaft (4), and is slidingly connected to the left side inside the anti-blocking main body (6); the protective door (9) is rotationally connected to the front end surface of the anti-blocking main body (6); the adjusting sliding block (11) is slidingly connected to the right side inside the anti-blocking main body (6); the anti-blocking springs (12) are provided in two groups, and the two groups of anti-blocking springs (12) are respectively fixedly connected to the left end surface of the adjusting sliding block (11), are respectively and elastically connected to the right end surface of the anti-blocking sliding arm (7), and are respectively slidingly arranged in the anti-blocking main body (6); the maintenance protection mechanism is arranged on the anti-blocking main body (6); and the anti-blocking adjusting mechanism is arranged on the right side inside the anti-blocking main body (6).

2. The anti-jamming structure of the plastic gear of the printer according to claim 1, characterized in that: The maintenance protection mechanism comprises a main gear (2), a synchronous gear (3) and a connecting gear (5); the main gear (2) is coaxially fixedly connected to the rear side of the printer rotating shaft (1); the synchronous gear (3) is coaxially fixedly connected to the front side of the printer rotating shaft (1); and the connecting gear (5) is coaxially fixedly connected to the front side of the connecting rotating shaft (4), and the synchronous gear (3) and the connecting gear (5) are engaged to jointly form a gear transmission mechanism.

3. The anti-jamming structure of the plastic gear of the printer according to claim 1, characterized in that: The maintenance protection mechanism further comprises a protection rotating shaft (8) and a protection torsional spring (801); the protection rotating shaft (8) is rotationally connected to the inside of the upper side of the front end surface of the anti-blocking main body (6), and the middle position of the protection rotating shaft (8) is fixedly connected to the protective door (9); and the protection torsional spring (801) is fixedly connected to the inside of the upper side of the front end surface of the anti-blocking main body (6), and is elastically connected to the protection rotating shaft (8).

4. The anti-jamming structure of the plastic gear of the printer according to claim 1, characterized in that: The maintenance protection mechanism further comprises an operation groove (601), a protection prying block (10) and a protection spring (1001); the operation groove (601) is formed in the lower side of the front end surface of the anti-blocking main body (6); the protection prying block (10) is slidingly connected to the lower side of the front end surface of the anti-blocking main body (6), and is slidingly arranged in the operation groove (601); and the protection spring (1001) is fixedly connected to the lower side of the inside of the front end surface of the anti-blocking main body (6), and is elastically connected to the lower end surface of the protection prying block (10).

5. The anti-jamming structure of the plastic gear of the printer according to claim 4, characterized in that: The maintenance protection mechanism further comprises a protection jack (901) and a protection bolt (1002); the protection jack (901) is formed in the left side of the lower end surface of the protective door (9); and the protection bolt (1002) is fixedly connected to the upper end surface of the protection prying block (10), and the protection jack (901) and the protection bolt (1002) are in plug-in connection.

6. The anti-jamming structure of the plastic gear of the printer according to claim 1, characterized in that: The anti-blocking adjusting mechanism comprises a power rotating block (13) and a power groove (1301); the power rotating block (13) is rotationally connected to the right side of the inside of the front end surface of the anti-blocking main body (6); and the power groove (1301) is formed in the inside of the power rotating block (13), and is rotationally arranged in the front end surface of the anti-blocking main body (6).

7. The anti-jamming structure of the plastic gear of the printer according to claim 6, characterized in that: The anti-blocking adjusting mechanism further comprises a power bevel gear (1302), an adjusting rotating shaft (14) and an adjusting bevel gear (1401); the power bevel gear (1302) is coaxially fixedly connected to the rear side of the power rotating block (13) and rotates in the right side of the anti-blocking main body (6); the adjusting rotating shaft (14) is rotatably connected to the right side of the anti-blocking main body (6); the adjusting bevel gear (1401) is coaxially fixedly connected to the right side of the adjusting rotating shaft (14), and the power bevel gear (1302) and the adjusting bevel gear (1401) are engaged to jointly form a bevel gear transmission mechanism.

8. The anti-jamming structure of the plastic gear of the printer according to claim 7, characterized in that: The anti-blocking adjusting mechanism further comprises an adjusting screw hole (1101) and an adjusting screw rod (1402); the adjusting screw hole (1101) is arranged in the middle position of the inner right end face of the adjusting sliding block (11); and the adjusting screw rod (1402) is coaxially fixedly connected to the left side of the adjusting rotating shaft (14) and is screw-connected in the adjusting screw hole (1101).

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