Novel electric carving knife

Abstract

The utility model belongs to the technical field of carving knives, and particularly relates to a novel electric carving knife which comprises a shell, a motor is arranged in the shell, a driving shaft capable of doing linear reciprocating motion is arranged at the front end of the shell, the front end of the driving shaft extends out of the shell and forms a first connecting part used for being connected with a knife head, and a rolling wheel is arranged at the rear end of the driving shaft. A fixing plate is installed at the front end of the motor, an installation part is formed in the shell, a fixing opening for clamping the fixing plate is formed in the side face of the installation part, the motor is connected with a motor shaft, and a driving wheel used for pushing the roller to move is installed on the periphery of the motor shaft. Front-back linear reciprocating motion of the driving shaft is achieved, so that the tool bit is driven to achieve engraving work, friction force between the driving shaft and the tool bit can be reduced, abrasion is reduced, the service life is prolonged, resistance is low, loss in the power transmission process can be reduced, and the power output rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engraving knife, and particularly to a novel electric engraving knife. BACKGROUND

[0002] At present, with the development of science and technology, various automatic engraving machines are constantly updated and increasingly popular, but in terms of artistic and detailed aspects, mechanical engraving cannot replace manual engraving, and the electric engraving knife can not only retain the uniqueness of manual engraving, but also accelerate efficiency and save manpower by using technology.

[0003] Although the existing electric engraving knife is relatively convenient during use, it still has many shortcomings, such as a kind of electric engraving knife disclosed by Chinese utility model patent CN202320364916.X, which comprises a shell, a motor and a battery are arranged in the shell, a switch is arranged on the periphery of the shell, and a blade is arranged at the front end of the shell;The motor output shaft and the blade are connected by a first transmission shaft and a second transmission shaft to transmit power, the first transmission shaft is sleeved with a bearing on the periphery, a corresponding bearing groove is formed on the inner side wall of the shell, the second transmission shaft is sleeved with a front end sleeve and a rear end sleeve on the periphery, a corresponding front end sleeve groove and a rear end sleeve groove are formed on the inner side wall of the shell, a pin shaft is arranged between the front end sleeve and the rear end sleeve, a return spring is arranged between the rear end sleeve and the pin shaft, and a steel ball is eccentrically arranged on the opposite end faces of the first transmission shaft and the second transmission shaft, when engraving, the blade is pressed to make the steel balls between the second transmission shaft and the first transmission shaft collide with each other, the blade realizes continuous impact, when not engraving, the return spring makes the second transmission shaft away from the first transmission shaft by limiting the pin shaft, and the first transmission shaft rotates idly.

[0004] During use of the engraving tool, the blade realizes continuous impact through the mutual collision between the two steel balls, and the service life of the component is short, so the structure needs to be further improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a novel electric engraving knife, which solves the problem of short service life of the existing structure by using a roller and a driving wheel.

[0006] The utility model is implemented in the following way: a novel electric engraving knife comprises a shell, a motor is arranged in the shell, a driving shaft capable of moving linearly is arranged at the front end of the shell, the front end of the driving shaft extends out of the shell and is formed with a connecting part one for connecting a tool bit, a roller is arranged at the rear end of the driving shaft, a fixed plate is mounted at the front end of the motor, an installation part is formed in the shell, a fixed port for clamping the fixed plate is formed in the side surface of the installation part, a motor shaft is connected to the motor, a driving wheel for pushing the roller to move is mounted on the outer periphery of the motor shaft, a plurality of recesses and protrusions are formed in the outer periphery of the driving wheel, and an arc surface for sliding the roller is formed between the recesses and the protrusions.

[0007] Preferably, the front end of the shell is shaped with a mounting cavity for mounting a driving shaft, the outer periphery of the driving shaft is respectively provided with two shaft sleeves at the front and back ends, and the mounting cavity is shaped with a mounting groove for mounting the shaft sleeves.

[0008] Preferably, the outer periphery of the driving shaft is provided with a pin shaft, and a spring is abutted between the pin shaft and the shaft sleeve.

[0009] Preferably, the two sides of the mounting cavity are respectively shaped with a limiting groove for front and back movement of the pin shaft.

[0010] Preferably, the rear end of the driving shaft is shaped with a connecting portion two, the connecting portion two is provided with an opening for mounting a roller, and a rotating shaft is arranged between the roller and the connecting portion two.

[0011] Preferably, the outer periphery of one end of the motor shaft is mounted with a rotating bearing, and the shell is provided with a bearing groove.

[0012] Preferably, the outer periphery of the connecting portion one is shaped with a connecting thread, and the outer periphery of the connecting portion one is mounted with a cap.

[0013] The utility model discloses a compared with prior art outstanding and beneficial technical effect is:

[0014] The utility model discloses a cooperation design of roller and driving wheel realizes the front and back linear reciprocating motion of driving shaft, thereby drives the cutter head to realize engraving work, and the roller slides from the front recess to the rear recess through the arc surface in the process of rotating the driving wheel, can reduce the friction between both, reduces abrasion, prolongs the life, and the resistance is lower, can reduce the loss in the power transmission process, improves the power output rate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the internal structure schematic diagram of the utility model.

[0017] Figure 3 It is the structure schematic diagram when the shell and internal parts are separated.

[0018] Figure 4 It is the part explosion structure schematic diagram of the utility model.

[0019] Fig. 1 - housing; 2 - switch; 3 - motor; 4 - drive shaft; 5 - connecting part one; 6 - roller; 7 - fixed plate; 8 - mounting part; 9 - fixed port; 10 - motor shaft; 11 - drive wheel; 12 - recess; 13 - convex part; 14 - arc surface; 15 - mounting cavity; 16 - shaft sleeve; 17 - mounting groove; 18 - pin shaft; 19 - spring; 20 - limiting groove; 21 - connecting part two; 22 - opening; 23 - rotating shaft; 24 - rotating bearing; 25 - bearing groove; 26 - connecting thread; 27 - cap. DETAILED DESCRIPTION

[0020] The specific embodiments of the utility model will be further described in detail below with reference to the drawings.

[0021] As Figures 1-4 shown, a novel electric engraving tool, including the housing 1, be provided with the motor 3 and be used for controlling its opening and closing switch 2 in the housing 1, be provided with battery or the housing is connected with battery or is connected with power cord in the housing 1, to provide the power required for the motor 3 when working, the front end of housing 1 is provided with the drive shaft 4 that can linear reciprocating motion, the front end of drive shaft 4 is out of housing 1 and is shaped with the connecting part one 5 for connecting tool bit, the rear end of drive shaft 4 is provided with roller 6, the front end of motor 3 is installed with fixed plate 7, the housing 1 is shaped with mounting part 8 in, the side of mounting part 8 is shaped with the fixed port 9 for the fixed plate 7 card set, to make motor 3 fixedly installed in the housing, the motor 3 is connected with motor shaft 10, the outer periphery of motor shaft 10 is installed with the drive wheel 11 for pushing roller 6 movement, the outer periphery of drive wheel 11 is shaped with several recesses 12 and convex parts 13, recess 12 and convex part 13 are shaped with the arc surface 14 for the sliding of roller 6, therefore when the motor drives motor shaft 10, will drive drive wheel 11 rotation simultaneously, to push drive shaft 4 reciprocating motion, carries out engraving work.

[0022] The utility model discloses the cooperation design of roller and drive wheel, realize the linear reciprocating motion of drive shaft before and after, to drive tool bit to realize engraving work, the roller is slid from the recess 12 before to the recess 12 after through arc surface 14 in the process of drive wheel rotation, can reduce the friction between both, reduce wear and tear, prolong the life, and the resistance is lower, can reduce the loss in the process of power transmission, improve power output rate.

[0023] The utility model has safety insurance measures, without external force influence, see Figure 2Due to the force of spring 19, the roller 6 and the driving wheel 11 can be kept at a distance, so that even in the case of misoperation, the motor will not drive the blade movement, improve safety, and when engraving, the blade is pressed against the carving, the driving shaft 4 will be pushed, so that the roller 6 moves to the side close to the driving wheel 11, and the two are abutted together, at this time the motor can drive the blade movement, and the engraving work is carried out.

[0024] The front end of the shell 1 is formed with a mounting cavity 15 for mounting the driving shaft 4, the outer periphery of the driving shaft 4 is provided with two shaft sleeves 16 at the front and rear ends, respectively, the mounting cavity 15 is formed with a mounting groove 17 for mounting the shaft sleeve 16, which improves the stability of the driving shaft 4 during rotation, reduces the friction force and reduces the noise.

[0025] The outer periphery of the driving shaft 4 is provided with a pin shaft 18, the pin shaft 18 and the shaft sleeve 16 are abutted with a spring 19, the automatic reset function of the driving shaft 4 can be realized by the spring 19, without additional mechanism control, simple structure, low cost.

[0026] The two sides of the mounting cavity 15 are respectively formed with a limiting groove 20 for the forward and backward movement of the pin shaft 18, which further improves the stability of the driving shaft 4 during forward and backward movement, and is not easy to shake.

[0027] The rear end of the driving shaft 4 is formed with a connecting part two 21, the connecting part two 21 is provided with an opening 22 for mounting the roller 6, and a rotating shaft 23 is arranged between the roller 6 and the connecting part two 21, so as to realize the rotating connection between the roller 5 and the connecting part two 21, which can greatly reduce the friction force between the roller 5 and the driving wheel 11, and will not cause too much wear even after long time use.

[0028] One end of the motor shaft 10 is provided with a rotating bearing 24, and the shell 1 is provided with a bearing groove 25, so as to improve the stability of the motor shaft 10 during rotation, reduce vibration and noise.

[0029] The outer periphery of the connecting part one 5 is formed with a connecting thread 26 for connecting different types of cutters, and the outer periphery of the connecting part one 5 is provided with a cap 27, which can protect the outer thread when not in use.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new electrically powered engraver characterized in that, The utility model provides a cutting machine, including shell (1), be provided with motor (3) in shell (1), the front end of shell (1) is provided with the drive shaft (4) that can linear reciprocating motion, the front end of drive shaft (4) is out of shell (1) and is shaped with the connecting portion one (5) for connecting cutter head, the rear end of drive shaft (4) is provided with gyro wheel (6), the front end of motor (3) is installed with fixed plate (7), the inside of shell (1) is shaped with installation part (8), the side of installation part (8) is shaped with the fixed mouth (9) of fixed plate (7) card setting, motor (3) is connected with motor shaft (10), the outer periphery of motor shaft (10) is installed with the drive wheel (11) for pushing gyro wheel (6) movement, the outer periphery of drive wheel (11) is shaped with a plurality of concave portion (12) and convex portion (13), and the arc surface (14) for gyro wheel (6) sliding is shaped between concave portion (12) and convex portion (13).

2. The new electric engraver knife according to claim 1, characterized in that: The front end of shell (1) is shaped with the installation cavity (15) for installing drive shaft (4), the outer periphery of drive shaft (4) is installed with two shaft sleeves (16) respectively at two ends, the installation cavity (15) is shaped with the installation slot (17) for installing shaft sleeve (16).

3. The new electric engraver knife according to claim 2, characterized in that: The outer periphery of drive shaft (4) is provided with pin shaft (18), and spring (19) is abutted between pin shaft (18) and shaft sleeve (16).

4. The new electric engraver knife according to claim 3, characterized in that: The both sides of installation cavity (15) are shaped with limiting slot (20) for the front and back movement of pin shaft (18) respectively.

5. The new electric engraver tool according to claim 1, characterized in that: The rear end of drive shaft (4) is shaped with connecting portion two (21), the opening (22) for installing gyro wheel (6) is formed in connecting portion two (21), and the rotating shaft (23) is arranged between gyro wheel (6) and connecting portion two (21).

6. The new electric engraver tool according to claim 1, characterized in that: One end of motor shaft (10) is installed with rotating bearing (24) on the outer periphery, and bearing groove (25) is arranged in shell (1).

7. The new electric engraver tool according to claim 1, characterized in that: The outer periphery of connecting portion one (5) is shaped with connecting thread (26), and cap (27) is installed on the outer periphery of connecting portion one (5).

Images