Pen ironing machine gear and rack transmission mechanism

Abstract

The utility model discloses a gear and rack transmission mechanism of a pen ironing machine, which comprises a servo motor, a planetary reducer, a helical gear, a helical rack, a tensioning mechanism, a rack mounting plate, a punching needle push plate, a linear rail, a linear rail slide block support, a fixed frame and a top fixed plate, the planetary reducer is mounted at the top of the fixing frame, the output end of the planetary reducer is connected into the bevel gear mounting hole, the bevel gear is located above the rack mounting plate, the side face of the bevel gear is meshed with the side face of the helical rack, the bottom of the helical rack is fixedly connected with the top of the rack mounting plate, and the tensioning mechanisms are arranged on the upper side and the lower side of the helical rack and the rack mounting plate. According to the device, a helical gear and rack structure is adopted for pen pushing, the meshing performance of the helical gear and rack structure is good, the transmission ratio is accurate, transmission is stable, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of pencil ironing machine equipment, in particular to a gear rack transmission mechanism of a pencil ironing machine. Background Art

[0002] In the production process of pencils, the white pencils need to be hot-ironed after planing and before painting to improve the surface quality of the pencils.

[0003] The existing pen ironing machines on the market use a ball screw mechanism to push the pen. Due to the long-term heating of the pen ironing seat, the temperature of the ball screw is too high, which greatly shortens its life. The ball screw has high manufacturing costs and a complex structure. The working environment of the pen ironing process is harsh and there is a lot of dust and wood chips, which reduces the life of the ball screw. Therefore, a gear rack transmission mechanism for a pen ironing machine is proposed to address the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A gear rack transmission mechanism for a pencil ironing machine includes a servo motor, a planetary reducer, a bevel gear, a bevel rack, a tensioning mechanism, a rack mounting plate, a punch needle push plate, a linear rail, a linear rail slider support, a fixed frame and a top fixed plate. The output end of the servo motor is fixedly connected to the inside of the planetary reducer, the planetary reducer is installed on the top of the fixed frame, the output end of the planetary reducer is connected to the inside of the bevel gear mounting hole, the bevel gear is located above the rack mounting plate, and the side surface of the bevel gear is meshed with the side surface of the bevel rack, the bottom of the bevel rack is fixedly connected to the top of the rack mounting plate, the bevel rack and the upper and lower sides of the rack mounting plate are both provided with tensioning mechanisms, the front end of the rack mounting plate passes through the fixed frame and is connected to the rear end of the punch needle push plate, and the top of the front end of the fixed frame is fixedly connected to the bottom of the rear end of the top fixed plate.

[0006] Preferably, the tensioning mechanism includes a connecting seat and a positioning wheel. The connecting seat is fixed to the rear sides of the upper and lower ends of the fixing frame by bolts. The positioning wheel is installed on the right side of the connecting seat. The outer side of the positioning wheel is fit-connected to the upper and lower sides of the bevel rack and the rack mounting plate.

[0007] Preferably, linear rail slider supports are provided at the bottom of both ends of the top fixed plate, and linear rails are installed at the bottom of the linear rail slider supports.

[0008] Preferably, sliders are provided at the tops of both ends of the punch push plate, and the tops of the sliders are internally slidably connected to the sides of the linear rails.

[0009] Preferably, a needle for pushing the pen is provided on the front side of the punch needle push plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are: (1) the device adopts a helical gear rack structure to push the pen, the helical gear rack structure has good meshing performance, accurate transmission ratio, smooth transmission and long service life.

[0011] (2) The device adopts a helical gear rack structure, which is simple and easy to install, and has a lower cost than a screw rod structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the tensioning mechanism of the utility model.

[0017] Explanation of the reference numerals in the figure: servo motor 1, planetary reducer 2, bevel gear 3, bevel rack 4, tensioning mechanism 5, rack mounting plate 6, punch push plate 7, slider 71, linear rail 8, linear rail slider support 9, fixed frame 10, top fixed plate 11. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1-4 The utility model provides an embodiment: a gear rack transmission mechanism of a pencil ironing machine, including a servo motor 1, a planetary reducer 2, a bevel gear 3, a bevel rack 4, a tensioning mechanism 5, a rack mounting plate 6, a punch needle push plate 7, a linear rail 8, a linear rail slider support 9, a fixed frame 10 and a top fixed plate 11. The output end of the servo motor 1 is fixedly connected to the inside of the planetary reducer 2, the planetary reducer 2 is installed on the top of the fixed frame 10, and the output end of the planetary reducer 2 is connected to the inside of the mounting hole of the bevel gear 3. The servo motor 1 drives the bevel gear 3 to rotate through the planetary reducer 2, and the bevel gear 3 is located at the rack The bevel gear 3 is meshed with the side of the bevel rack 4 when it rotates, and the bevel rack 4 can be driven to move back and forth. The bottom of the bevel rack 4 is fixedly connected to the top of the rack mounting plate 6. The bevel rack 4 and the rack mounting plate 6 are both provided with a tensioning mechanism 5 on both sides. The front end of the rack mounting plate 6 passes through the fixed frame 10 and is connected to the rear end of the punch needle push plate 7. The top of the front end of the fixed frame 10 is fixedly connected to the bottom of the rear end of the top fixed plate 11. The reciprocating motion of the bevel rack 4 and the rack mounting plate 6 will drive the punch needle push plate 7 to move back and forth. The reciprocating motion of the punch needle push plate 7 can push the pen, thereby realizing the pen hotting action.

[0021] The tensioning mechanism 5 includes a connecting seat 51 and a positioning wheel 52. The connecting seat 51 is fixed to the rear sides of the upper and lower ends of the fixing frame 10 by bolts. The positioning wheel 52 is installed on the right side of the connecting seat 51. The outer side of the positioning wheel 52 is fitted and connected to the upper and lower sides of the bevel rack 4 and the rack mounting plate 6. The positioning wheel 52 limits the upper and lower sides of the bevel rack 4 and the rack mounting plate 6.

[0022] Linear rail slider supports 9 are provided at the bottom of both ends of the top fixed plate 11, and linear rails 8 are installed at the bottom of the linear rail slider supports 9. Sliders 71 are provided at the top of both ends of the punch needle push plate 7. The top of the slider 71 is slidably connected to the side of the linear rail 8. The punch needle push plate 7 moves along the linear rail 8 through the slider 71. The linear rail 8 and the linear rail slider support 9 are located on the upper side of the punch needle push plate 7 to provide guiding effect for the mechanism. A needle for pushing the pen is provided on the front side of the punch needle push plate 7.

[0023] When in use, the servo motor 1 drives the bevel gear 3 to rotate through the planetary reducer 2, and the rotation of the bevel gear 3 can drive the bevel rack 4 to reciprocate to achieve the pen ironing action.

[0024] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A rack and pinion transmission mechanism for a pencil ironing machine, characterized in that: The invention comprises a servo motor (1), a planetary reducer (2), a helical gear (3), a helical rack (4), a tensioning mechanism (5), a rack mounting plate (6), a punch push plate (7), a linear rail (8), a linear rail slider support (9), a fixing frame (10) and a top fixing plate (11), wherein the output end of the servo motor (1) is fixedly connected to the inside of the planetary reducer (2), the planetary reducer (2) is installed on the top of the fixing frame (10), and the output end of the planetary reducer (2) is connected to the mounting hole of the helical gear (3) The bevel gear (3) is located above the rack mounting plate (6), and the side of the bevel gear (3) is meshed with the side of the bevel rack (4), the bottom of the bevel rack (4) is fixedly connected to the top of the rack mounting plate (6), and the bevel rack (4) and the rack mounting plate (6) are both provided with tensioning mechanisms (5) on the upper and lower sides, the front end of the rack mounting plate (6) passes through the fixed frame (10) and is connected to the rear end of the punch push plate (7), and the top of the front end of the fixed frame (10) is fixedly connected to the bottom of the rear end of the top fixed plate (11).

2. The rack and pinion transmission mechanism of a pencil ironing machine according to claim 1, characterized in that: The tensioning mechanism (5) comprises a connecting seat (51) and a positioning wheel (52); the connecting seat (51) is fixed to the rear sides of the upper and lower ends of the fixing frame (10) by bolts; the positioning wheel (52) is installed on the right side of the connecting seat (51); the outer side of the positioning wheel (52) is fitted and connected to the upper and lower sides of the bevel rack (4) and the rack mounting plate (6).

3. The rack and pinion transmission mechanism of a pencil ironing machine according to claim 1, characterized in that: Linear rail slider supports (9) are provided at the bottom of both ends of the top fixed plate (11), and a linear rail (8) is installed at the bottom of the linear rail slider supports (9).

4. The rack and pinion transmission mechanism of a pencil ironing machine according to claim 3, characterized in that: Slide blocks (71) are provided at the tops of both ends of the punching needle push plate (7), and the tops of the slide blocks (71) are internally slidably connected to the side surfaces of the linear rails (8).

5. The rack and pinion transmission mechanism of a pencil ironing machine according to claim 4, characterized in that: The front side of the punching needle pushing plate (7) is provided with a needle for pushing the pen.

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