CN107584420A - A kind of throwing base machine of autofeed - Google Patents

Abstract

The invention discloses a blank throwing machine with automatic knife feeding, which comprises a frame, a polishing device, a dust cover, a dust collector, a dust concentration detector and a PLC controller; the polishing device is installed on each station of the frame ;The dust cover is set above the grinding block of each polishing device, and there are multiple partition plates inside the dust cover to separate each station; the dust cover of each station is equipped with a dust suction The dust collector is connected to the dust extraction hole of the dust cover through the pipeline; the dust concentration detector is installed in the dust extraction hole; the PLC controller is electrically connected with the polishing device and the dust concentration detector respectively. This application separates each station into a relatively independent working space by setting a partition plate, and then detects the dust concentration of each station according to the dust concentration detector, and the PLC controller separately controls the dust concentration of each station. The grinding device makes a judgment on whether it is necessary to lower the knife, so as to realize precise and automatic knife feeding, and improve production efficiency and production accuracy.

Description

A throwing machine with automatic knife feeding

technical field

The invention relates to a ceramic processing technology, in particular to a blank throwing machine with automatic knife feeding.

Background technique

At present, when the ceramic blank throwing machine is working, the grinding block of the polishing device rotates to polish the surface of the adobe, which will gradually thin the grinding block, thereby affecting the polishing effect of the adobe. Therefore, each processing station of the ceramic blank throwing machine must be provided with a feed mechanism that drives the grinding block up and down, so that when the grinding block becomes thinner, the overall working unit is lowered to maintain the efficiency of polishing.

In the prior art, the timing of the knife feeding mechanism is generally judged by the operator based on observation and experience, which is not accurate enough and the efficiency is low. Therefore, the present invention proposes a blank throwing machine feed system that automatically feeds the solid feed according to the concentration of grinding debris to solve the above problems.

Contents of the invention

In order to overcome the deficiencies of the prior art, the object of the present invention is to provide an automatic knife-feeding throwing machine. This application divides each station into a relatively independent working space by setting a partition board, and then installs a dust concentration detector on the dust extraction hole of each station, and detects the dust concentration of each station according to the dust concentration detector. According to the dust concentration of the station, the PLC controller makes a judgment on whether the polishing device on each station needs to be lowered and fed, so as to realize accurate and automatic feeding, and improve production efficiency and production accuracy.

The purpose of the present invention is achieved by the following technical solutions: an automatic knife-feeding throwing machine, including a frame, a polishing device for polishing ceramic tiles, a dust cover for preventing the diffusion of grinding debris, and a dust cover for adsorption and collection. A dust collector for grinding debris in the dust cover, a dust concentration detector for detecting the dust concentration in the dust cover, and a PLC controller for controlling whether the polishing device feeds the knife according to the dust concentration detected by the dust concentration detector; The polishing device is installed on each station of the frame; the dust cover is arranged above the grinding block of each polishing device, and a plurality of partition plates are arranged in the dust cover to separate each station. open; the dust cover of each station is provided with a dust extraction hole; the dust collector communicates with the dust extraction hole of the dust cover through a pipeline; the dust concentration detector is installed in the dust extraction hole; the PLC control The device is electrically connected with the polishing device and the dust concentration detector respectively.

Further, the polishing device includes a grinding wheel for installing grinding blocks, a grinding wheel connecting shaft for transmission connection with the grinding wheel, a pushing cylinder for driving the grinding wheel connecting shaft to move up and down, and a driving cylinder for connecting the pushing cylinder and the grinding wheel connecting shaft. The support plate, the cylinder support seat used to fix the push cylinder, the bearing seat used to fix the cylinder support seat; the grinding block is installed on the grinding wheel; the bottom of the grinding wheel connecting shaft is connected to the top of the grinding wheel, and the grinding wheel connecting shaft The top is fixedly connected to the support plate; the expansion rod of the push cylinder is fixed on the support plate; the push cylinder is fixed on the bearing seat through the cylinder support seat, and the bearing seat is fixed on the girder of the frame.

Further, there is a magnetic ring at the bottom of the telescopic rod of the push cylinder, and a magnetic switch for detecting the magnetic ring on the telescopic rod of the cylinder is installed on the outer wall of the push cylinder; the magnetic switch is electrically connected to the PLC controller.

Further, the polishing device also includes a fine-tuning mechanism for fine-tuning the lifting position of the grinding wheel, and the fine-tuning mechanism is arranged above the support plate; the fine-tuning mechanism includes a motor and an elevator containing a screw; the motor passes through the transmission and the elevator The screw is connected by transmission; the lower part of the screw is covered with a protective cover; the support plate is provided with a light hole; the screw passes through the light hole on the support plate and is connected with the protective cover.

Further, there are two push cylinders, which are respectively arranged in parallel on both sides of the grinding wheel connecting shaft; the two pushing cylinders are respectively fixed on the two ends of the cylinder support seat, and the middle part of the cylinder support seat is provided with a hole for the grinding wheel connection shaft to pass through. arc-shaped notch; there are two screws, which are respectively arranged in parallel on both sides of the connecting shaft of the grinding wheel, and the two screws are linked through a synchronous shaft.

Further, when the dust concentration detector installed at the dust extraction hole detects that the dust concentration is less than 60mg/ ^m3 , the PLC controller controls the grinding block of the polishing device to drop by 0.02mm; when the dust concentration detector installed at the dust extraction hole When the dust concentration monitor detects that the dust concentration is greater than 80mg/ ^m3 , the PLC controller controls the grinding block of the polishing device to rise by 0.02mm.

Further, the blank throwing machine also includes a conveying mechanism for conveying the ceramic tile adobe, and the conveying mechanism is arranged below the polishing device.

Compared with the prior art, the beneficial effects of the present invention are:

This application divides each station into a relatively independent working space by setting a partition board, and then installs a dust concentration detector on the dust extraction hole of each station, and detects the dust concentration of each station according to the dust concentration detector. According to the dust concentration of the station, the PLC controller makes a judgment on whether the polishing device on each station needs to be lowered and fed, so as to realize accurate and automatic feeding, and improve production efficiency and production accuracy.

Description of drawings

Fig. 1 is the schematic structural view of the blank throwing machine of automatic knife feeding in a preferred embodiment of the present invention;

Fig. 2 is the enlarged schematic view of area A in Fig. 1;

Fig. 3 is the structural representation of polishing device;

Fig. 4 is a schematic cross-sectional structure diagram of the push cylinder.

In the figure: 1. rack; 2. polishing device; 21. grinding wheel; 22. connecting shaft of grinding wheel; 23. driving cylinder; 231. magnetic ring; 232. magnetic switch; 24. supporting plate; 25. cylinder supporting seat; 26. Bearing seat; 27. Grinding block; 28. Fine-tuning mechanism; 281. Motor; 282. Transmission; 283. Screw; 284. Lift; 285. Synchronous shaft; 286. Protective sleeve; 3. Dust cover; Dust hole; 4. Dust collector; 5. Dust concentration detector; 6. Conveying mechanism.

detailed description

Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

As shown in Figure 1-4, an automatic knife-feeding throwing machine includes a frame 1, a polishing device 2 for polishing ceramic tiles, a dust cover 3 for preventing the diffusion of grinding debris, and a Dust collector for collecting grinding debris in the dust cover 4. Dust concentration detector for detecting the dust concentration in the dust cover 5. PLC control for controlling whether the polishing device feeds the knife according to the dust concentration detected by the dust concentration detector device (not shown in the figure) and the conveying mechanism 6 for conveying ceramic bricks; the polishing device is installed on each station of the frame; A plurality of partition plates (not shown in the figure) are arranged inside to separate each work station; dust extraction holes 31 are arranged on the dust cover of each station; the dust collector passes through the pipeline (not shown in the figure) and The dust extraction hole of the dust cover is connected; the dust concentration detector is installed in the dust extraction hole; the PLC controller is electrically connected with the polishing device and the dust concentration detector respectively; the conveying mechanism is arranged under the polishing device. The conveying mechanism is a device in the prior art that can realize the transfer of plate-like objects, such as one of a conveyor belt and a roller.

This application divides each station into a relatively independent working space by setting a partition board, and then installs a dust concentration detector on the dust extraction hole of each station, and detects the dust concentration of each station according to the dust concentration detector. According to the dust concentration of the station, the PLC controller makes a judgment on whether the polishing device on each station needs to be lowered and fed, so as to realize accurate and automatic feeding, and improve production efficiency and production accuracy.

Specifically, the polishing device 2 includes a grinding wheel 21 for installing grinding blocks, a grinding wheel connecting shaft 22 for transmission connection with the grinding wheel, a pushing cylinder 23 for driving the grinding wheel connecting shaft to move up and down, and a driving cylinder for connecting the pushing cylinder and the grinding wheel. The support plate 24 of the connecting shaft, the cylinder supporting seat 25 for fixing the driving cylinder, the bearing seat 26 for fixing the cylinder supporting seat; the grinding block 27 is installed on the grinding wheel; the bottom of the grinding wheel connecting shaft is connected to the top of the grinding wheel, and the grinding wheel is connected The top of the shaft is fixedly connected to the supporting plate; the expansion rod of the driving cylinder is fixed on the supporting plate; the driving cylinder is fixed on the bearing seat through the cylinder supporting seat, and the bearing seat is fixed on the beam of the frame.

As a preferred solution of the present application, there is a magnetic ring 231 at the bottom of the telescopic rod of the push cylinder, and a magnetic switch 232 for detecting the magnetic ring on the telescopic rod of the cylinder is installed on the outer wall of the push cylinder; the magnetic switch is electrically connected to the PLC controller. When the grinding block is worn out, the magnetic switch installed at the bottom of the push cylinder detects the magnetic ring at the bottom of the telescopic rod of the cylinder, and the PLC controller controls the action of the solenoid valve to make the push cylinder rise and drive the grinding wheel to rise, prompting the operator to replace the grinding block , to realize automatic prompt grinding wheel replacement, improve the production efficiency of polishing.

As a preferred solution of the present application, the polishing device also includes a fine-tuning mechanism 28 for fine-tuning the lifting position of the grinding wheel, and the fine-tuning mechanism is arranged above the support plate; the fine-tuning mechanism includes a motor 281 and an elevator 284 comprising a screw 283; The screw is connected by transmission; the lower part of the screw is covered with a protective sleeve 286; the support plate is provided with a light hole; the screw passes through the light hole on the support plate and is connected with the protective sleeve. The lift is a lift with the model number WPT30-D-S-B-8-120-P produced by Foshan Yingyi Transmission Machinery Factory. The protective sleeve is designed to prevent the screw rod from directly connecting to the cylinder support seat, reducing wear on the screw rod and the cylinder support seat.

As the preferred solution of this application, there are two push cylinders, which are respectively arranged in parallel on both sides of the grinding wheel connecting shaft; There are two arc-shaped gaps; two screw rods are respectively arranged in parallel on both sides of the grinding wheel connecting shaft, and the two screw rods are linked through the synchronous shaft 285. The purpose of setting up two push cylinders is to make the force of the support plate more uniform during the lifting process, and the lifting is smoother and more precise. The purpose of arranging two screw rods is to more stably control the stability of the grinding wheel when lifting and fine-tuning.

As the preferred solution of the present application, when the dust concentration detector installed at the dust extraction hole detects that the dust concentration is less than 60mg/ ^m3 , the PLC controller controls the grinding block of the polishing device to drop by 0.02mm; When the dust concentration monitor detects that the dust concentration is greater than 80mg/ ^m3 , the PLC controller controls the grinding block of the polishing device to rise by 0.02mm. After the test, the blank throwing machine can achieve a good grinding effect at the above-mentioned detection concentration and by controlling the drop and rise of the grinding block at different concentrations. The surface of the polished tiles is smooth, with high flatness, and there is no missing polishing. phenomenon, but also greatly improved the polishing efficiency.

The fine-tuning process of the throwing machine is as follows:

When starting and stopping operations or changing the grinding wheel, when a large lift is required, the set push cylinder is used to push the support plate up or down in the vertical direction, so that the connecting shaft of the grinding wheel fixed on the support plate is also lifted and lowered, and the grinding wheel can be raised and lowered by a large amount. It is suitable for large-scale lifting adjustment when starting and stopping operations or changing grinding wheels.

When the grinding wheel needs to be fine-tuned to lower the grinding wheel due to wear during the operation, the dust concentration detector of each station detects the dust concentration of each station through the dust concentration detector. The grinding device judges whether it needs to be lowered to feed the knife, and then, the PLC controller controls the fine-tuning mechanism, that is, the motor, the reducer and the elevator, and further controls the fine-tuning of the lifting of the grinding wheel connecting shaft. The specific process is as follows: Push the telescopic rod of the cylinder to retract, so that the support plate drops until the two protective sleeves are on the top of the cylinder support seat; then the motor is driven by the PLC controller, and the synchronous shaft of the elevator is driven to rotate through the transmission; the synchronous shaft is linked The two elevators make the screw rod rise relatively, so that the distance between the support plate and the cylinder support seat is reduced, and since the cylinder support seat is fixed on the bearing seat, the support plate will drive the grinding wheel to descend together for fine adjustment.

The above-mentioned embodiment is only a preferred embodiment of the present invention, and cannot be used to limit the protection scope of the present invention. Any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of the present invention. Scope of protection claimed.

Claims (7)

1. A blank throwing machine with automatic feeding, characterized in that it includes a frame, a polishing device for polishing ceramic tiles, a dust cover for preventing the diffusion of grinding debris, and a dust cover for absorbing and collecting dust. A dust collector for grinding debris, a dust concentration detector for detecting the dust concentration in the dust cover, and a PLC controller for controlling whether the polishing device feeds the knife according to the dust concentration detected by the dust concentration detector; the polishing device Installed on each station of the frame; the dust-proof cover is arranged above the grinding block of each polishing device, and a plurality of partition plates are arranged in the dust-proof cover to separate each station; each The dust cover of the station is provided with a dust extraction hole; the dust remover communicates with the dust extraction hole of the dust cover through a pipeline; the dust concentration detector is installed in the dust extraction hole; The grinding device is electrically connected to the dust concentration detector. 2. The blank throwing machine according to claim 1, wherein the polishing device includes a grinding wheel for installing grinding blocks, a grinding wheel connecting shaft for driving the grinding wheel, and a grinding wheel connecting shaft for driving the grinding wheel up and down The moving push cylinder, the support plate used to connect the push cylinder and the connecting shaft of the grinding wheel, the cylinder support seat used to fix the push cylinder, and the bearing seat used to fix the cylinder support seat; grinding blocks are installed on the grinding wheel; the grinding wheel The bottom of the connecting shaft is connected to the top of the grinding wheel, and the top of the connecting shaft of the grinding wheel is fixedly connected to the supporting plate; the telescopic rod of the pushing cylinder is fixed on the supporting plate; on the girder of the rack. 3. The blank throwing machine as claimed in claim 2, wherein the bottom of the telescopic rod of the push cylinder has a magnetic ring, and the outer wall of the push cylinder is equipped with a magnetic switch for detecting the magnetic ring on the telescopic rod of the cylinder; The switch is electrically connected with the PLC controller. 4. The blank throwing machine according to claim 2, wherein the polishing device also includes a fine-tuning mechanism for fine-tuning the lifting position of the grinding wheel, and the fine-tuning mechanism is arranged above the support plate; the fine-tuning mechanism includes The motor and the elevator containing the screw; the motor is connected to the screw of the elevator through the transmission; the lower part of the screw is covered with a protective sleeve; the support plate is provided with a light hole; the screw passes through the light on the support plate hole to connect with the protective cover. 5. The blank throwing machine as claimed in claim 4, wherein there are two said pushing cylinders, which are respectively arranged in parallel on both sides of the connecting shaft of the grinding wheel; the two pushing cylinders are respectively fixed on the two ends of the cylinder support seat, The middle part of the cylinder support seat is provided with an arc-shaped gap for the grinding wheel connecting shaft to pass through; the two screw rods are respectively arranged in parallel on both sides of the grinding wheel connecting shaft, and the two screw rods are linked through the synchronous shaft. 6. The blank throwing machine as claimed in claim 1, characterized in that, when the dust concentration detector installed at the dust extraction hole detects that the dust concentration is less than 60 mg/m ³ , the PLC controller controls the polishing device The grinding block is lowered by 0.02mm; when the dust concentration monitor installed at the dust extraction hole detects that the dust concentration is greater than 80mg/ ^m3 , the PLC controller controls the grinding block of the polishing device to rise by 0.02mm. 7. The blank throwing machine according to claim 1, characterized in that, the blank throwing machine further comprises a conveying mechanism for conveying the ceramic tile adobe, and the conveying mechanism is arranged below the polishing device.