Electric cable tie gun and method of using the same

Abstract

The present invention discloses an electric cable tie gun and a method for using the same, comprising a housing, a handle fixedly connected to the bottom of the housing by screws, a power interface provided at the bottom of the handle, a start button installed on the inner side of the handle, a DC motor fixedly installed inside the housing, a screw fixedly connected to the output end of the DC motor, a bidirectional Chi Le wheel mechanism provided on the side of the screw, the bidirectional Chi Le wheel mechanism comprising an eccentric wheel, a left Chi Le wheel, a transmission wheel, a right Chi Le wheel, a first pressing wheel left ball, a main shaft and a right ball, the screw meshingly connected to the transmission wheel, the main shaft running through the inside of the transmission wheel, the right end of the main shaft fixedly connected to the right Chi Le wheel, the first pressing wheel sleeved on the outer side of the right Chi Le wheel, the right ball provided between the first pressing wheel and the right Chi Le wheel. The present invention saves the process of manual pulling, reduces labor intensity, and speeds up the operating procedures.

Description

Technical Field

[0001] The present invention relates to the field of cable tie guns, and in particular to an electric cable tie gun and a method of using the same. Background Art

[0002] The automotive parts industry is inseparable from the production and processing of wire harnesses, and the production volume increases year by year. In the production process of wire harnesses, plastic strapping must be used to bundle and position the wire harnesses, so each wire harness has multiple straps. The operation steps are: bundling, tightening (there are certain requirements for tension), cutting excess material, etc. In order to reduce labor intensity, improve production efficiency and meet production needs, this electric "cable tie gun" is designed. This cable tie gun uses electric control, which saves the process of manual pulling, reduces labor intensity, speeds up operating procedures, and has broad development prospects.

[0003] The traditional tool used is a "mechanical" cable tie cutting gun. Using this "cable tie cutting gun" requires steps such as threading, tightening, and cutting. The entire action requires pulling the trigger 3 to 5 times, and the operation must be repeated thousands of times a day, which is very labor-intensive.

[0004] Therefore, it is necessary to invent a kind of electric cable tie gun to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an electric cable tie gun and a method for using the same. By means of the bidirectional rotation of a bidirectional cable tie wheel mechanism, a device is driven to automatically pull and shear the material, thereby solving the problem in the prior art that the steps of threading, tightening, and shearing are required, and the entire action requires pulling the trigger 3 to 5 times, which is very labor-intensive. The present invention saves the manual pulling process, reduces labor intensity, and speeds up the operating procedures.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric cable tie gun, comprising a shell and a shearing mechanism located inside the shell, the bottom of the shell is fixedly connected to a handle by a screw, the bottom of the handle is provided with a power interface, a start button is installed on the inside of the handle, a DC motor is fixedly installed inside the shell, the output end of the DC motor is fixedly connected to a screw, a bidirectional Chi Le wheel mechanism is provided on the side of the screw, the bidirectional Chi Le wheel mechanism comprises an eccentric wheel, a left Chi Le wheel, a transmission wheel, a right Chi Le wheel, a first pressing wheel, a left ball, a main shaft and a right ball, the screw is meshed with the transmission wheel, and the main shaft runs through the interior of the transmission wheel. The right end of the main shaft is fixedly connected to the right Chile wheel, the first pressure wheel is sleeved on the outside of the right Chile wheel, the right ball is arranged between the first pressure wheel and the right Chile wheel, and a right bearing fixed to the inner wall of the shell is provided on the right side of the first pressure wheel. The left end of the main shaft is fixedly connected to the left Chile wheel, the eccentric wheel is sleeved on the outside of the left Chile wheel, the left ball is arranged between the left Chile wheel and the eccentric wheel, and a left bearing fixed to the inner wall of the shell is provided on the left side of the eccentric wheel. A second pressure wheel is provided above the bidirectional Chile wheel mechanism, and the second pressure wheel is movably connected to the shell. A control panel is installed inside the shell, and a tension sensor is connected to the side of the control panel.

[0007] Preferably, the left Chile wheel, transmission wheel, right Chile wheel and main shaft are integrated.

[0008] Preferably, the interiors of the left and right Chi Le wheels are configured as triangular gradual openings, and the number of the triangular gradual openings is set to three, and the three triangular gradual openings are distributed in a circular array about the center point of the left and right Chi Le wheels.

[0009] Preferably, the triangular gradual openings arranged inside the left and right Chile wheels are in opposite directions, and the left and right balls are both arranged inside the triangular gradual openings.

[0010] Preferably, the DC motor includes a motor assembly, a plastic cable tie is provided at the opening of the shell, a pressing wheel assembly is provided above the first pressing wheel, the pressing wheel assembly includes a rotating rod, a rotating shaft is provided at the middle end of the rotating rod, an elastic member is fixedly connected to the bottom end of the rotating rod, and a is provided between the first pressing wheel and the pressing wheel assembly.

[0011] Preferably, a cam is provided between the eccentric wheel and the left bearing, a shearing structure arm is provided on the outer side of the cam, a rotating shaft is provided at the middle end of the shearing structure arm, a lower blade is provided at the end of the shearing structure arm, and the shearing mechanism includes an upper blade corresponding to the lower blade.

[0012] Preferably, there is also a method for using an electric cable tie gun, wherein the cable tie gun is powered on, the upper blade and the lower blade are opened, the cable tie is manually fed into the entrance, the DC motor is started to drive the first pressing wheel to rotate and pull the cable tie, thereby completing the tightening of the material.

[0013] Preferably, after tensioning, the DC motor reverses to drive the shearing mechanism to move, generate displacement, and achieve the purpose of shearing; in the initial state, the shearing structure arm does not move, and when the cam rotates 360°, a shearing action is completed, and the mechanism returns to the initial state, thereby completing the tensioning and shearing.

[0014] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0015] 1. Power on the cable tie gun, reset the mechanism, open the two blades, manually feed the cable tie into the entrance, press the start button, the DC motor starts and drives the first pressing wheel to rotate, thereby tightening the material first;

[0016] 2. After tensioning, the internal program sends a shear control signal (the tensioning parameters can be set according to requirements), the motor reverses, and the shearing mechanism acts to realize the two functions of "tensioning and shearing"; the advantage of this device is that one motor rotates in different directions, producing two different actions and realizing two different functions. This structure can also be applied to other structural aspects, with a simple structure and the purpose of realizing multiple functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 Schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the connection structure between the transmission wheel and the cable tie of the present invention;

[0020] Figure 4 This is a schematic diagram of the exploded structure of the bidirectional Chile wheel mechanism of the present invention;

[0021] Figure 5 Schematic diagram of the internal structure of the first pressing wheel of the present invention;

[0022] Figure 6 This is a schematic diagram of the connection structure between the first pressing wheel and the main shaft of the present invention;

[0023] Figure 7 This is a schematic diagram of the connection structure between the transmission wheel and the main shaft of the present invention;

[0024] Figure 8 It is a schematic diagram of the cam structure from the side of the present invention;

[0025] Figure 9 This is a schematic diagram of the connection structure between the transmission wheel and the motor assembly of the present invention;

[0026] Figure 10 Schematic diagram of the three-dimensional structure of the bidirectional Chile wheel mechanism of the present invention;

[0027] Figure 11 This is a schematic diagram of the shear structure arm of the present invention before shearing;

[0028] Figure 12 This is a schematic diagram of the shear structure arm after shearing of the present invention.

[0029] Description of reference numerals:

[0030] 1. Housing; 2. Shearing mechanism; 3. Bidirectional Chi Le wheel mechanism; 3-1. Left bearing; 3-2. Eccentric wheel; 3-3. Left Chi Le wheel; 3-4. Transmission wheel; 3-5. Right Chi Le wheel; 3-6. First pressure wheel; 3-7. Right bearing; 3-8. Left ball bearing; 3-9. Main shaft; 3-10. Right ball bearing; 4. DC motor; 4-1. Motor assembly; 4-2. Plastic cable tie; 4-3. Pressure wheel assembly; 4-5. Rotating rod; 4-6. Elastic member; 4-7. Rotating shaft; 5. Start button; 5-1. Shearing structure arm; 5-2. Lower blade; 5-3. Upper blade; 5-4. Cam; 6. Handle; 7. Power interface; 8. Second pressure wheel; 9. Tension sensor; 10. Control panel; 11. Cable tie. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] The present invention provides Figure 1-12The electric cable tie gun shown in the figure includes a shell 1, the bottom of the shell 1 is fixedly connected to a handle 6 by screws, the bottom of the handle 6 is provided with a power interface 7, and a start button 5 is installed on the inside of the handle 6. A DC motor 4 is fixedly installed inside the shell 1, and the output end of the DC motor 4 is fixedly connected to a screw rod, and a bidirectional Chi Le wheel mechanism 3 is provided on the side of the screw rod. The bidirectional Chi Le wheel mechanism 3 includes an eccentric wheel 3-2, a left Chi Le wheel 3-3, a transmission wheel 3-4, a right Chi Le wheel 3-5, a first pressing wheel 3-6, a left ball 3-8, a main shaft 3-9 and a right ball 3-10. The screw rod is meshed with the transmission wheel 3-4, the main shaft 3-9 runs through the interior of the transmission wheel 3-4, and the right end of the main shaft 3-9 is fixedly connected to the right Chi Le wheel 3-5. A pressure wheel 3-6 is sleeved on the outside of the right Chile wheel 3-5, and the right ball 3-10 is arranged between the first pressure wheel 3-6 and the right Chile wheel 3-5. A right bearing 3-7 fixed to the inner wall of the shell 1 is provided on the right side of the first pressure wheel 3-6. The left end of the main shaft 3-9 is fixedly connected to the left Chile wheel 3-3. The eccentric wheel 3-2 is sleeved on the outside of the left Chile wheel 3-3. The left ball 3-8 is arranged between the left Chile wheel 3-3 and the eccentric wheel 3-2. A left bearing 3-1 fixed to the inner wall of the shell 1 is provided on the left side of the eccentric wheel 3-2. A second pressure wheel 8 is provided above the bidirectional Chile wheel mechanism 3. The second pressure wheel 8 is movably connected to the shell 1. A control board 10 is installed inside the shell 1, and a tension sensor 9 is connected to the side of the control board 10.

[0033] In the above technical solution, the left Chile wheel 3-3, the transmission wheel 3-4, the right Chile wheel 3-5 and the main shaft 3-9 are integrated to facilitate the movement of parts on both sides.

[0034] In the above technical solution, the interior of the left Chile wheel 3-3 and the right Chile wheel 3-5 is set to a triangular gradual opening, and the number of the triangular gradual openings is set to three. The three triangular gradual openings are distributed in a circular array about the center point of the left Chile wheel 3-3 and the right Chile wheel 3-5, which is conducive to controlling the left Chile wheel 3-3 and the right Chile wheel 3-5.

[0035] like Figure 1-10 As shown: the triangular gradual openings arranged inside the left ball 3-8 and the right ball 3-10 are in opposite directions, and the left ball 3-8 and the right ball 3-10 are both arranged inside the triangular gradual opening to facilitate one-way rotation.

[0036] In the above technical solution, the DC motor 4 includes a motor assembly 4-1, a plastic cable tie 4-2 is provided at the opening of the shell 1, a pressing belt wheel assembly 4-3 is provided above the first pressing wheel 3-6, and the pressing belt wheel assembly 4-3 includes a rotating rod 4-5 and a rotating rod 4-5, the rotating rod 4-5 and the rotating rod 4-5 are rotatably connected, a rotating shaft 4-7 is provided at the middle end of the rotating rod 4-5, and an elastic member 4-6 is fixedly connected to the bottom end of the rotating rod 4-5, and a cable tie 11 is provided between the first pressing wheel 3-6 and the pressing belt wheel assembly 4-3, which is convenient for squeezing the cable tie 11 and is conducive to tightening the cable tie 11.

[0037] In the above technical solution, a cam 5-4 is provided between the eccentric wheel 3-2 and the left bearing 3-1, a shearing structure arm 5-1 is provided on the outside of the cam 5-4, a rotating shaft is provided at the middle end of the shearing structure arm 5-1, a lower blade 5-2 is provided at the end of the shearing structure arm 5-1, and the shearing mechanism 2 includes an upper blade 5-3. The upper blade 5-3 corresponds to the lower blade 5-2, which is conducive to automatic shearing of materials and greatly reduces labor intensity.

[0038] This utility works as follows:

[0039] Refer to the instruction manual Figure 1-12First, the cable tie gun is powered on, the mechanism is reset, the two blades are opened, the cable tie 11 is manually fed into the entrance, and the start button 5 is pressed to start the DC motor 4 to pull the cable tie 11. In the left cable tie pulling Chi Le wheel of the two-way Chi Le wheel mechanism 3, the four components of the left Chi Le wheel 3-3, the transmission wheel 3-4, the right Chi Le wheel 3-5, and the main shaft 3-9 form a whole. When the main shaft 3-9 rotates, it drives the left Chi Le wheel 3-3, the transmission wheel 3-4 and the right Chi Le wheel 3-5 to rotate at the same time. The inside of the right Chi Le wheel 3-5 is provided with a gradual opening from the inside to the outside. When the two-way Chi Le wheel mechanism 3 rotates counterclockwise, the right ball 3-10 in the right Chi Le wheel 3-5 is at the outermost side of the gradual opening of the right Chi Le wheel 3-5. The geometric size of the outer side of the gradual opening of the Chi Le wheel is larger than the diameter of the right ball 3-10. The first pressing wheel 3-6 has no friction contact with the right ball 3-10. The first pressing wheel 3-6 is stationary. On the contrary, when the main shaft 3-9 rotates clockwise, the geometric size of the right Chile wheel 3-5 is reduced as the right Chile wheel 3-5 rotates, so that the right Chile wheel 3-5 contacts with the right ball 3-10 and the first pressing wheel 3-6. Due to the effect of friction, the main shaft 3-9 assembly is integrated into one by the action of the ball and rotates at the same time, just like a clutch, which makes the two separated structures rotate together. That is, when the main shaft 3-9 rotates clockwise, the first pressing wheel 3-6 rotates at the same time, and when it rotates counterclockwise, the first pressing wheel 3-6 is stationary, achieving the purpose of one-way drive. When the motor assembly 4-1 rotates, the bidirectional Chile wheel mechanism 3 drives the first pressing wheel 3-6 to rotate at the same time, so that the plastic strap 4-2 is tightened backwards under the action of friction between the first pressing wheel 3-6 and the pressing strap wheel assembly 4-3, completing the "pulling" function.

[0040] Refer to the instruction manual Figure 1-12 , after tightening, the internal program sends a shear control signal (the tightening parameters can be set as required), the motor reverses, and when the main shaft 3-9 rotates counterclockwise, the left Chile wheel 3-3 and the left ball 3-8 and the eccentric wheel 3-2 move synchronously, so that the top dead point of the eccentric wheel 3-2 becomes the bottom dead point, driving the shearing mechanism 2 to move, generating displacement, and achieving the purpose of shearing. When rotating clockwise, the eccentric wheel 3-2 is stationary. In the initial state, a reset signal is generated, and the shearing structure arm 5-1 is stationary. When the bidirectional Chile wheel mechanism 3 rotates clockwise, it drives the cam 5-4 to rotate, causing the shearing structure arm 5-1 to deflect, driving the lower blade 5-2 to move upward, and when the cam 5-4 rotates 360°, a shearing action is completed, and the mechanism returns to the initial state, completing a complete "tightening, shearing" action, and achieving the purpose of "tightening, shearing".

[0041] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An electric cable tie gun, comprising a housing (1) and a shearing mechanism (2) located inside the housing, characterized in that: The bottom of the housing (1) is fixedly connected to a handle (6) by screws, the bottom of the handle (6) is provided with a power interface (7), the inner side of the handle (6) is provided with a start button (5), the inside of the housing (1) is fixedly provided with a DC motor (4), the output end of the DC motor (4) is fixedly connected to a screw rod, the side of the screw rod is provided with a bidirectional Chi Le wheel mechanism (3), the bidirectional Chi Le wheel mechanism (3) comprises an eccentric wheel (3-2), a left Chi Le wheel (3-3), a transmission wheel (3-4), a right Chi Le wheel (3-5), a first pressing wheel (3-6), a left ball (3-8), a main shaft (3-9) and a right ball (3-10), the screw rod is meshedly connected to the transmission wheel (3-4), the main shaft (3-9) runs through the inside of the transmission wheel (3-4), the right end of the main shaft (3-9) is fixedly connected to the right Chi Le wheel (3-5), the first pressing wheel (3-6) is sleeved with the left ball (3-8), the main shaft (3-9) is inserted into the transmission wheel (3-4), the right end of the main shaft (3-9) is fixedly connected to the right Chi Le wheel (3-5), the first pressing wheel (3-6) is sleeved with the left ball (3-9), the main shaft (3-9) is sleeved with the right ball (3-10), the main shaft (3-9) is sleeved with the left ball (3-11), the main shaft (3-9) is sleeved with the right ball (3-12), the main shaft (3-9) is sleeved with the right ball (3-13), the main shaft (3-9) is sleeved with the right ball (3-14), the main shaft (3-9) is sleeved with the right ball (3-15), the main shaft (3-9) is sleeved with the right ball (3-16), the main shaft (3-9) is sleeved with the On the outside of the right Chi Le wheel (3-5), the right ball (3-10) is arranged between the first pressing wheel (3-6) and the right Chi Le wheel (3-5), the right side of the first pressing wheel (3-6) is provided with a right bearing (3-7) fixed to the inner wall of the housing (1), the left end of the main shaft (3-9) is fixedly connected to the left Chi Le wheel (3-3), the eccentric wheel (3-2) is sleeved on the outside of the left Chi Le wheel (3-3), and the left ball (3-8) It is arranged between the left Chile wheel (3-3) and the eccentric wheel (3-2), the left side of the eccentric wheel (3-2) is provided with a left bearing (3-1) fixed to the inner wall of the housing (1), a second pressing wheel (8) is arranged above the bidirectional Chile wheel mechanism (3), the second pressing wheel (8) is movably connected to the housing (1), a control panel (10) is installed inside the housing (1), and a tension sensor (9) is connected to the side of the control panel (10); The interior of the left Chile wheel (3-3) and the right Chile wheel (3-5) is arranged as a triangular gradual opening, the number of the triangular gradual openings is arranged to be three, and the three triangular gradual openings are distributed in a ring array about the center point of the left Chile wheel (3-3) and the right Chile wheel (3-5); The triangular gradual openings arranged inside the left Chi Le wheel (3-3) and the right Chi Le wheel (3-5) are in opposite directions, and the left ball (3-8) and the right ball (3-10) are both arranged inside the triangular gradual openings; The DC motor (4) comprises a motor assembly (4-1), a plastic cable tie (4-2) is arranged at the opening of the housing (1), a cable tie wheel assembly (4-3) is arranged above the first pressing wheel (3-6), the cable tie wheel assembly (4-3) comprises a rotating rod (4-5), a rotating shaft (4-7) is arranged at the middle end of the rotating rod (4-5), an elastic member (4-6) is fixedly connected to the bottom of the end of the rotating rod (4-5), and a cable tie (11) is arranged between the first pressing wheel (3-6) and the cable tie wheel assembly (4-3); A cam (5-4) is arranged between the eccentric wheel (3-2) and the left bearing (3-1); a shearing structure arm (5-1) is arranged on the outer side of the cam (5-4); a rotating shaft is arranged at the middle end of the shearing structure arm (5-1); a lower blade (5-2) is arranged at the end of the shearing structure arm (5-1); the shearing mechanism (2) comprises an upper blade (5-3); and the upper blade (5-3) corresponds to the lower blade (5-2).

2. The electric cable tie gun according to claim 1, characterized in that: The left Chile wheel (3-3), the transmission wheel (3-4), the right Chile wheel (3-5) and the main shaft (3-9) are arranged in an integrated manner.

3. A method for using an electric cable tie gun, characterized in that: The invention comprises an electric cable tie gun as claimed in claim 2, wherein the cable tie gun is powered on, the upper blade (5-3) and the lower blade (5-2) are opened, the cable tie (11) is manually fed into the entrance, and the start button (5) is pressed to start the DC motor (4) to pull the cable tie (11). In the left cable tie pulling cable tie Chi Le wheel of the bidirectional Chi Le wheel mechanism (3), when the main shaft (3-9) rotates, the left Chi Le wheel (3-3), the transmission wheel (3-4) and the right Chi Le wheel (3-5) are driven to rotate simultaneously. The right Chi Le wheel (3-5) is provided with a gradual opening from the inside to the outside. When the bidirectional Chi Le wheel mechanism (3) rotates counterclockwise, the right ball (3-10) in the right Chi Le wheel (3-5) is rotated in the The right Chile wheel (3-5) gradually opens at the outermost side, and the geometric dimensions of the outer side of the gradual opening of the Chile wheel are greater than the diameter of the right ball (3-10). The first pressing wheel (3-6) has no frictional contact with the right ball (3-10), and the first pressing wheel (3-6) is stationary. On the contrary, when the main shaft (3-9) rotates clockwise, the gradual opening of the right Chile wheel (3-5) decreases with the rotation, so that the right Chile wheel (3-5) contacts the right ball (3-10) and the first pressing wheel (3-6). The first pressing wheel (3-6) rotates at the same time, so that the plastic cable tie (4-2) is pulled backwards under the action of friction between the first pressing wheel (3-6) and the cable tie wheel assembly (4-3).

4. The method for using the electric cable tie gun according to claim 3, characterized in that: After tensioning, the DC motor (4) rotates in reverse, and the internal program sends out a shearing control signal. When the main shaft (3-9) rotates counterclockwise, the left Chile wheel (3-3) moves synchronously with the left ball (3-8) and the eccentric wheel (3-2), so that the upper dead point of the eccentric wheel (3-2) becomes the lower dead point, driving the shearing mechanism (2) to move, generating displacement, and achieving the purpose of shearing. When rotating clockwise, the eccentric wheel (3-2) is stationary. In the initial state, the shearing structure arm (5-1) is stationary. When the bidirectional Chile wheel mechanism (3) rotates clockwise, it drives the cam (5-4) to rotate, causing the shearing structure arm (5-1) to deflect, driving the lower blade (5-2) to move upward, and when the cam (5-4) rotates 360 degrees, a shearing action is completed.

Images