Mud feeding device for honeycomb ceramic structural body processing

Abstract

The utility model aims to provide the pug supply device for processing the honeycomb ceramic structural body, the problems that pug is difficult to add and inconvenient to clean are solved, and the problems that an existing pug supply device is low in supply pressure and the supply amount is difficult to accurately control can be solved at the same time, the high-pressure oil cylinder is further connected to one end of the high-pressure tank through the high-pressure oil pipe, and the high-pressure tank is connected with the high-pressure tank through the high-pressure oil pipe. A piston is arranged in the high-pressure tank, the interval from an oil cylinder piston of the high-pressure oil cylinder to the piston of the high-pressure tank is filled with hydraulic oil, the driving device drives the oil cylinder piston of the high-pressure oil cylinder to move and enables the piston of the high-pressure tank to move synchronously, and the other end of the high-pressure tank is connected with a material storage tank through a three-way pipeline. A first one-way valve is arranged at the joint of the storage tank and the three-way pipeline, a third connector of the three-way pipeline is connected with a discharging pipe, and a second one-way valve is arranged at the joint of the third connector of the three-way pipeline and the discharging pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment for particulate traps for particulates contained in exhaust gas in the field of post-treatment of exhaust gas, and particularly relates to a mud feeding device for processing honeycomb ceramic structures. Background Art

[0002] A particulate trap is a device installed in the exhaust system of a gasoline engine, and its main function is to adsorb particulate matter in automobile exhaust gas, thereby achieving the purpose of purifying exhaust gas. Although diesel vehicles were the first to use particulate traps, gasoline vehicles must now also install such devices to meet the environmental protection standards of National VI B. In many cases, the particulate trap uses a plugged-hole honeycomb structure as a filter to intercept particulate matter in the exhaust gas.

[0003] The Chinese utility model patent with the publication number CN210768986U discloses an automatic hole plugging device for a porous honeycomb ceramic DPF. For the existing mud feeding devices for plugging holes and splicing honeycomb ceramic structures, the feeding pressure is generally low, it is difficult to fill the mud thoroughly, and it is difficult to accurately control the feeding amount. At the same time, each time mud is added during tank feeding, the tank needs to be opened for feeding. To disassemble the injection tank body, the pressure needs to be relieved first, and the sealing cover needs to be removed to clean the inside of the tank body, etc., and the procedures are cumbersome, time-consuming and laborious. Summary of the Utility Model

[0004] The utility model aims to provide a mud feeding device for processing honeycomb ceramic structures, which solves the problems of difficult mud addition and inconvenient cleaning, and at the same time can solve the problems of low feeding pressure and difficult accurate control of the feeding amount of the existing mud feeding device.

[0005] The technical solution is as follows: A mud feeding device for processing honeycomb ceramic structures includes a high-pressure oil cylinder. A piston rod is arranged on the high-pressure oil cylinder. One end of the piston rod is connected with an oil cylinder piston, and the other end of the piston rod is connected with a driving device. It is characterized in that: The high-pressure oil cylinder is also connected to one end of a high-pressure tank through a high-pressure oil pipe. A piston is arranged in the high-pressure tank. The interval from the oil cylinder piston of the high-pressure oil cylinder to the piston of the high-pressure tank is filled with hydraulic oil. The driving device drives the oil cylinder piston of the high-pressure oil cylinder to move and makes the piston of the high-pressure tank move synchronously. The other end of the high-pressure tank is connected to a storage tank through a three-way pipe. A first one-way valve is arranged at the connection between the storage tank and the three-way pipe. The third interface of the three-way pipe is connected with a discharge pipe. A second one-way valve is arranged at the connection between the third interface of the three-way pipe and the discharge pipe.

[0006] Further, the opening direction of the first one-way valve is from the storage tank to the high-pressure tank, and the opening direction of the second one-way valve is from the high-pressure tank to the discharge pipe.

[0007] Further, the driving device includes a servo motor, the output shaft of the servo motor is connected with a speed reducer, the speed reducer is connected with a lead screw device, the lead screw device includes a lead screw and a lead screw nut pair that mates with the lead screw, a transfer plate is fixed on the lead screw nut pair of the lead screw device, the transfer plate is connected with the piston rod of the high-pressure oil cylinder, and the lead screw of the lead screw device is arranged parallel to the piston rod of the high-pressure oil cylinder.

[0008] Further, the driving device further includes guide posts located on both sides of the lead screw of the lead screw device, the guide posts are arranged parallel to the lead screw, and guide sleeves are arranged on the transfer plate for guiding and cooperating with the guide posts.

[0009] Further, both ends of the guide posts and the lead screw are fixed on a fixed plate.

[0010] Further, the driving device further includes a grating scale arranged parallel to the lead screw, the grating reading head of the grating scale is fixedly connected with the transfer plate, and both ends of the grating scale are fixed on the fixed plate.

[0011] Further, a groove is provided on the piston of the high-pressure tank, and a plurality of piston rings are nested in the groove.

[0012] By using the mud feeding device for honeycomb ceramic structure processing of the present utility model, the mud feeding device is arranged independently of the hole plugging device. The mud feeding device is provided with a linked high-pressure oil cylinder, high-pressure tank and storage tank. A piston is arranged in the high-pressure tank, and the interval from the piston of the high-pressure tank to the piston of the oil cylinder of the high-pressure oil cylinder is filled with hydraulic oil. The other side of the piston of the high-pressure tank can be used to fill mud. When in use, first open the first one-way valve from the storage tank to the high-pressure tank, fill mud in the storage tank, drive the piston of the high-pressure oil cylinder to move through the driving device, suck the mud in the storage tank into the pipeline and the high-pressure tank, drive the piston of the high-pressure oil cylinder to move reciprocally while adding mud to the storage tank until the pipeline and the other side of the piston of the high-pressure tank are filled with mud, and then the piston of the high-pressure oil cylinder can be driven to move through the driving device to open the second one-way valve at the discharge pipe for mud feeding. The high-pressure and quantitative mud feeding device of the present utility model is convenient for adding mud. The mud feeding device and the hole plugging device are independent of each other, and mud can be directly added to the storage tank without affecting the hole plugging device, and it is also convenient for cleaning; at the same time, the driving device of the high-pressure and quantitative mud feeding device of the present utility model adopts a servo motor in cooperation with a speed reducer and a lead screw device, and at the same time cooperates with a grating scale to accurately record the pushing distance, so as to achieve accurate control of the feeding amount and high feeding pressure. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of a mud feeding device for honeycomb ceramic structure processing in an embodiment;

[0014] Figure 2 It is a schematic diagram of a mud feeding device for processing a honeycomb ceramic structure in another embodiment. Specific embodiments

[0015] In view of the fact that the mud feeding device for plugging holes in the existing honeycomb ceramic structure is directly connected to the hole plugging device, and each time mud is added, the tank needs to be opened for feeding, the process is cumbersome, time-consuming and laborious, and there are problems such as generally low feeding pressure and it is difficult to accurately control the mud feeding amount. The present utility model provides a mud feeding device for processing a honeycomb ceramic structure, aiming to solve the defects of the prior art.

[0016] See Figure 1 , a mud feeding device for processing a honeycomb ceramic structure in the embodiment, includes a high-pressure oil cylinder 100. The high-pressure oil cylinder includes a piston rod 101. One end of the piston rod 101 is connected to an oil cylinder piston 102, and the other end of the piston rod 101 is connected to a driving device 200. The high-pressure oil cylinder 100 is also connected to one end of a high-pressure tank 400 through a high-pressure oil pipe 300. A piston 401 is arranged in the high-pressure tank 400. The interval from the oil cylinder piston 102 of the high-pressure oil cylinder to the piston 401 of the high-pressure tank is filled with hydraulic oil. The driving device 200 drives the oil cylinder piston 102 of the high-pressure oil cylinder to move. Under the derivation of the hydraulic oil, the piston 401 of the high-pressure tank moves synchronously. The other end of the high-pressure tank 400 is connected to a storage tank 600 through a three-way pipe 500. In the embodiment, a sus304 seamless steel pipe is selected to make the storage tank.

[0017] In the embodiment, the high-pressure tank 400 is connected to the first interface 501 of the three-way pipe 500, and the storage tank 600 is connected to the first interface 502 of the three-way pipe 500. A first one-way valve 700 is arranged at the connection between the storage tank 600 and the three-way pipe. The third interface 503 of the three-way pipe is connected to a discharge pipe 800. A second one-way valve 900 is arranged at the connection between the third interface 503 of the three-way pipe and the discharge pipe.

[0018] In the implementation, the opening direction of the first one-way valve 700 is from the storage tank 600 to the high-pressure tank 400, and the opening direction of the second one-way valve 900 is from the high-pressure tank 400 to the discharge pipe 800. The opening directions of the first one-way valve 700 and the second one-way valve 900 ensure that mud can only be sucked from the storage tank 600 to the high-pressure tank 400. When sucking, the second one-way valve 900 remains closed, and the mud will not run into the discharge pipe 800. At the same time, it can ensure that when feeding, the first one-way valve 700 remains closed and will not open, and the mud can be correctly pushed into the discharge pipe for feeding.

[0019] When the device in the embodiment is in use, the mud material is filled into the storage tank. The high-pressure oil cylinder is driven by a servo motor to draw back, and then the piston in the high-pressure tank is driven to draw back. The first one-way valve is opened, and the mud material is drawn from the storage tank into the high-pressure tank. During the material drawing process, the second one-way valve in the discharge pipe automatically closes. When applied for the first time, the material is drawn several times repeatedly until the high-pressure tank and the discharge pipe are filled with mud material.

[0020] Feeding work: The high-pressure oil cylinder driven by the servo drives the piston in the high-pressure tank to push the material outwards, and at the same time, the grating ruler accurately measures the feeding amount. During the feeding process, the first one-way valve automatically closes, and the second one-way valve automatically opens, and the material is accurately and quantitatively fed to the discharge port through the discharge pipe.

[0021] The mud material supply device in the embodiment adopts the linkage design of the high-pressure oil cylinder, the high-pressure tank and the storage tank, as well as the coordinated use of the piston and the one-way valve. By utilizing the dynamic balance of the hydraulic oil, the automatic suction, filling and quantitative supply of the mud material are realized. The piston design in the high-pressure tank is matched with the one-way valve, ensuring that the mud material can be first transferred from the storage tank to the high-pressure tank, and then the mud material can smoothly enter the pipeline under the push of the piston, and then be transported to the construction area. Through the accurately controlled movement of the piston of the high-pressure oil cylinder, the mud material is quantitatively supplied to the discharge pipe, realizing a fast, uniform and controllable feeding process; the mud material supply device in the embodiment can realize a continuous feeding mode. By controlling the one-way valve, mud material can be added to the storage tank during feeding, which ensures the continuity of the production process and reduces the equipment downtime caused by unstable mud material supply.

[0022] Through the pressure generated by the high-pressure oil cylinder, the device can provide a high-pressure mud material supply, which is particularly important for the processing of honeycomb ceramic structures, because it can ensure that the mud material can fully fill the fine pores of the ceramic structure, thereby improving the quality of the final product.

[0023] The mud material supply device in this application is independent of the hole plugging device. This design increases the flexibility and convenience of equipment operation. Mud material can be directly added to the storage tank, avoiding interfering with the normal operation of the hole plugging device due to mud material supply, and improving the efficiency and stability of the entire processing process. And it makes the maintenance and cleaning work more convenient. This helps to extend the service life of the equipment and reduce equipment failures caused by improper cleaning. The high-pressure and quantitative mud material supply device provided by this solution can effectively promote the improvement of the honeycomb ceramic structure processing technology level, and plays a major role in improving product quality and optimizing the production process.

[0024] See Figure 2 , in one embodiment, several piston rings 402 are provided on the piston 401 of the high-pressure tank. The piston ring is a metal ring used to be embedded inside the groove of the piston. The setting of the piston ring can scrape off the excess hydraulic oil and mud material on the inner wall of the high-pressure tank, and also play a sealing role at both ends of the piston.

[0025] In an embodiment of the present utility model, the driving device 200 includes a servo motor 201. The output shaft of the servo motor 201 is connected to a speed reducer 202, and the speed reducer 202 is connected to a lead screw device 203. The lead screw device includes a lead screw and a lead screw nut pair that cooperates with the lead screw. A transfer plate 204 is fixed on the lead screw nut pair of the lead screw device 203. The transfer plate 204 is connected to the piston rod 101 of the high-pressure oil cylinder. The lead screw of the lead screw device is arranged parallel to the piston rod 101 of the high-pressure oil cylinder. While the servo motor 201 drives the lead screw device 203 to move, the transfer plate 204 fixedly connected to the lead screw nut pair moves synchronously, so that the piston rod 101 of the high-pressure oil cylinder can move synchronously with the lead screw device. The servo motor drives the high-pressure oil cylinder to realize high-precision mud feeding.

[0026] In the embodiment, the driving device further includes guide columns 205 located on both sides of the lead screw of the lead screw device 203. The guide columns 205 are arranged parallel to the lead screw. Guide sleeves 206 are arranged on the transfer plate 204 for guiding and cooperating with the guide columns 205. The arrangement of the guide sleeves 206 and the guide columns 205 can improve the operation stability and ensure the synchronism of the movement of the piston rod 101 of the high-pressure oil cylinder and the lead screw. The two ends of the guide columns 205 and the lead screw are respectively fixed on a fixing plate 207 to ensure the parallelism of the guide columns 205 and the lead screw, and further ensure that the piston rod 101 of the high-pressure oil cylinder can move synchronously with the lead screw device.

[0027] In an embodiment of the present utility model, the driving device further includes a grating scale 208 arranged parallel to the lead screw. The grating reading head 209 of the grating scale is fixedly connected to the transfer plate 205. The two ends of the grating scale 208 are fixed on the fixing plate 207. The servo drive simultaneously drives the grating scale 208 to accurately record the pushing distance, and the grating scale accurately measures the feeding amount.

[0028] The drive system of the mud feeding device adopts a high-precision combination of a servo motor, a speed reducer, a lead screw device and a grating scale, which can accurately record the pushing distance, so as to realize precise control of the feeding amount. This precise control ensures that the feeding pressure meets the high-standard requirements, and also makes the regulation of the feeding amount more refined and automated, meeting the different requirements for mud feeding under different process conditions, not only improving the product quality, but also reducing the waste of raw materials.

[0029] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A mud material supply device for processing a honeycomb ceramic structure, comprising a high-pressure oil cylinder, a piston rod is provided on the high-pressure oil cylinder, one end of the piston rod is connected to the oil cylinder piston, and the other end of the piston rod is connected to a driving device, characterized in that: The high-pressure oil cylinder is also connected to one end of the high-pressure tank through a high-pressure oil pipe, a piston is arranged in the high-pressure tank, and the interval between the cylinder piston of the high-pressure oil cylinder and the piston of the high-pressure tank is filled with hydraulic oil, the driving device drives the cylinder piston of the high-pressure oil cylinder to move and makes the piston of the high-pressure tank move synchronously, and the other end of the high-pressure tank is connected to the storage tank through a three-way pipe, a first one-way valve is arranged at the connection between the storage tank and the three-way pipe, a discharge pipe is connected to the third interface of the three-way pipe, and a second one-way valve is arranged at the connection between the third interface of the three-way pipe and the discharge pipe.

2. A mud material supply device for processing a honeycomb ceramic structure according to claim 1, characterized in that: The opening direction of the first one-way valve is from the storage tank to the high-pressure tank, and the opening direction of the second one-way valve is from the high-pressure tank to the discharge pipe.

3. The mud material supply device for processing a honeycomb ceramic structure according to claim 1, characterized in that: The driving device includes a servo motor, the output shaft of the servo motor is connected to a reducer, the reducer is connected to a screw device, the screw device includes a screw and a screw nut pair cooperating with the screw, an adapter plate is fixed on the screw nut pair of the screw device, the adapter plate is connected to the piston rod of the high-pressure oil cylinder, and the screw of the screw device is arranged parallel to the piston rod of the high-pressure oil cylinder.

4. A mud material supply device for processing a honeycomb ceramic structure according to claim 3, characterized in that: The driving device also includes guide posts located on both sides of the screw rod of the screw rod device, the guide posts are arranged parallel to the screw rod, and the adapter plate is provided with guide sleeves for guiding the guide posts.

5. A mud material supply device for processing a honeycomb ceramic structure according to claim 4, characterized in that: The two ends of the guide column and the screw rod are respectively fixed on the fixing plate.

6. A mud material supply device for processing a honeycomb ceramic structure according to claim 5, characterized in that: The driving device also includes a grating ruler arranged parallel to the lead screw, a grating reading head of the grating ruler is fixedly connected to the adapter plate, and two ends of the grating ruler are fixed to the fixed plate.

7. The mud material supply device for processing a honeycomb ceramic structure according to claim 1, characterized in that: A groove is arranged on the piston of the high-pressure tank, and a plurality of piston rings are nested in the groove.

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