CN215394170U

CN215394170U - Automatic knife grinding device of cloth paving machine

Info

Publication number: CN215394170U
Application number: CN202121960982.0U
Authority: CN
Inventors: 姚与能; 朱海博; 肖科科; 申金亮
Original assignee: Bullmer Electromechanical Technology Co Ltd
Current assignee: Bullmer Electromechanical Technology Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-04
Anticipated expiration: 2031-08-20

Abstract

The utility model provides an automatic knife sharpening device of a cloth paving machine, which comprises a lead screw motor and a controller which are fixedly installed, wherein a lead screw nut block is connected to a lead screw shaft of the lead screw motor in a threaded manner, the lead screw nut block is connected with a knife sharpening grinding wheel through a pressure sensor, and the controller is respectively connected with the pressure sensor and a rotating motor of the lead screw motor. The tool sharpener disclosed by the utility model has the beneficial effects that by arranging the screw motor, the controller, the pressure sensor and the sharpener, the bonding pressure between the sharpener and the cutter can be adjusted in real time according to the pressure information reflected by the pressure sensor, the sharpening pressure between the sharpener and the cutter is ensured to be constant, the sharpening effect is optimized, the service lives of the sharpener and the cutter are prolonged, and the use cost of the machine is reduced.

Description

Automatic knife grinding device of cloth paving machine

Technical Field

The utility model relates to an automatic knife sharpening device of a cloth paving machine.

Background

The conventional cloth paving machine knife sharpening grinding wheel device comprises a knife sharpening grinding wheel, a telescopic rod and an electromagnetic switch, wherein the knife sharpening grinding wheel is arranged at the front end of the telescopic rod, and the telescopic rod is fixed with the electromagnetic switch. When a cutter of the cloth paving machine needs to sharpen a knife, the electromagnetic switch is closed, the telescopic rod pushes the sharpening grinding wheel to contact the cutter, and the cutter rotates to sharpen the knife; when the electromagnetic switch is switched off, the telescopic rod drives the sharpening grinding wheel to rebound, and sharpening action is finished.

The prior knife sharpening grinding wheel device has the following problems:

1. when the machine leaves the factory, an assembler needs to manually fix the pushing position of the telescopic rod. Because the propulsion position that the telescopic link reachd at every turn during whetting a knife is fixed, the unable adjustment of contact pressure between emery wheel of whetting a knife and the cutter, especially the emery wheel that newly trades is exerted pressure on the cutter on general big partially, and this can lead to driving motor load to generate heat excessively and even burn out, also can cause emery wheel and cutter excessive wear simultaneously, scrap in advance.

2. Because the propelling position that the telescopic link drove the emery wheel of whetting a knife and reachd at every turn is fixed, and emery wheel and cutter are constantly wearing and tearing again, and the distance between the two can constantly increase, and the emery wheel of finally whetting a knife loses the effect of whetting a knife to the cutter, and the cutter can't use, can only change emery wheel and cutter new, has increased use cost.

In view of the above problems, there is a need for a grinding wheel device capable of automatically adjusting the working pressure.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects, the utility model aims to provide the automatic knife grinding device of the cloth paving machine, which can adjust the working pressure, and prolong the service life of a knife grinding wheel and a cutter.

The utility model provides an automatic knife sharpening device of a cloth paving machine, which comprises a lead screw motor and a controller which are fixedly installed, wherein a lead screw nut block is connected to a lead screw shaft of the lead screw motor in a threaded manner, the lead screw nut block is connected with a knife sharpening grinding wheel through a pressure sensor, and the controller is respectively connected with the pressure sensor and a rotating motor of the lead screw motor.

Preferably, the screw nut block is provided with a first opening and a second opening, the first opening is in threaded connection with the screw shaft, and the second opening is connected with the pressure sensor through a fastener.

Preferably, the device further comprises a mounting seat fixedly mounted, and the rotating motor is mounted on the mounting seat.

Preferably, the grinding device further comprises a fixedly installed support, a guide hole is formed in the support, and the pressure sensor penetrates through the guide hole to be connected with the grinding wheel.

The tool sharpener disclosed by the utility model has the beneficial effects that by arranging the screw motor, the controller, the pressure sensor and the sharpener, the bonding pressure between the sharpener and the cutter can be adjusted in real time according to the pressure information reflected by the pressure sensor, the sharpening pressure between the sharpener and the cutter is ensured to be constant, the sharpening effect is optimized, the service lives of the sharpener and the cutter are prolonged, and the use cost of the machine is reduced.

Drawings

FIG. 1 is an exploded view of an automatic knife sharpening device of a cloth paving machine of the present invention;

fig. 2 is a schematic structural view of the automatic knife sharpening device of the cloth paving machine.

Element number description:

1 rotating electrical machine

2 screw shaft

3 mounting seat

4 lead screw nut block

41 first opening hole

42 second opening hole

5 pressure sensor

6 knife grinding wheel

71 gasket

72 nut

8 support

9 cutting knife

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 and 2, the present invention provides an automatic knife sharpening device for a cloth paving machine, which comprises a fixedly mounted lead screw motor and a controller (not shown), wherein the lead screw motor comprises a rotating motor 1 and a lead screw shaft 2 coaxially connected with an output shaft of the rotating motor 1, and the rotating motor 1 is specifically a stepping motor. Threaded connection has lead screw nut piece 4 on the lead screw axle 2, and lead screw nut piece 4 is connected with emery wheel 6 of whetting a knife through pressure sensor 5, and the controller is connected with pressure sensor 5, lead screw motor's rotating electrical machines 1 respectively. When the rotating motor 1 works, the screw shaft 2 synchronously rotates to drive the screw nut block 4 to linearly displace along the screw shaft 2, and the screw nut block 4 pushes the knife sharpening grinding wheel 6 to contact with the cutter 9 of the cloth spreading machine to sharpen. In the process, the pressure sensor 5 detects the pressure between the sharpening grinding wheel 6 and the cutter 9 in real time, the controller synchronously receives electric signals sent by the pressure sensor 5 and the rotating motor 1, the rotating speed of the rotating motor 1 is adjusted according to pressure information fed back by the pressure sensor 5, the distance for the screw nut block 4 to push the sharpening grinding wheel 6 to advance is further adjusted, the pressure between the sharpening grinding wheel 6 and the cutter 9 is guaranteed to be constant rather than small and large when the sharpening grinding wheel is in contact with the cutter 9, and the sharpening effect is optimized. The automatic knife sharpening device can avoid the situation that the rotating motor 1 rapidly generates heat even burns out due to overlarge load, can prevent excessive abrasion caused by overlarge contact pressure between the knife sharpening grinding wheel 6 and the cutter 9, can prevent failure of sharpening of the cutter 1 caused by undersize contact pressure between the knife sharpening grinding wheel 6 and the cutter 9, effectively prolongs the service life of the knife sharpening grinding wheel 6 and the cutter 9, and reduces the use cost of the machine.

In an embodiment of the present invention, the screw nut block 4 is provided with a first opening 41 and a second opening 42, the first opening 41 is in threaded connection with the screw shaft 2, and the second opening 42 is fastened to one end of the pressure sensor 5 by a fastener, specifically a screw or a bolt, and a gasket 71. The cloth spreading machine also comprises a mounting seat 3 and a bracket 8 which are fixedly arranged in the cloth spreading machine, and the rotating motor 1 is arranged on the mounting seat 3; the support 8 is provided with a guide hole, one side of the knife sharpening grinding wheel 6 is provided with a connecting rod and a nut 72, and the other end of the pressure sensor 5 penetrates through the guide hole to be connected with the nut 72. Preferably, the mounting seat 3 and the bracket 8 are connected with each other, and the bracket 8 is fixedly mounted on the cloth paving machine, so that the whole device is more compact in structure and installation space is saved.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a shop cloth machine automatic sharpening device, its characterized in that, including fixed mounting's lead screw motor and controller, threaded connection has lead screw nut piece (4) on lead screw shaft (2) of lead screw motor, lead screw nut piece (4) are connected with whetting a knife emery wheel (6) through pressure sensor (5), the controller respectively with pressure sensor (5), lead screw motor's rotating electrical machines (1) are connected.

2. The automatic knife sharpening device of the cloth paving machine according to claim 1, characterized in that the screw nut block (4) is provided with a first opening (41) and a second opening (42), the first opening (41) is in threaded connection with the screw shaft (2), and the second opening (42) is connected with the pressure sensor (5) through a fastener.

3. The automatic knife sharpening device of cloth paving machine according to claim 1, characterized in that further comprises a fixedly mounted mounting seat (3), and the rotating motor (1) is mounted on the mounting seat (3).

4. The automatic knife sharpening device of the cloth paving machine according to claim 1, characterized by further comprising a fixedly installed bracket (8), wherein a guide hole is formed in the bracket (8), and the pressure sensor (5) passes through the guide hole to be connected with the knife sharpening grinding wheel (6).