A stacked-mold slip casting process for domestic ceramic production and an apparatus thereof

Abstract

The present application relates to the technical field of ceramic production, in particular to a stacked mold grouting process for daily-use ceramic production, and a stacked mold grouting equipment for daily-use ceramic production, comprising a mounting frame and double-sided mold mounting plates, two adjacent double-sided mold mounting plates being connected through an equal-interval variable-distance mechanism, male molds and female molds being mounted on the two sides of the double-sided mold mounting plates, the male mold being composed of a first gypsum layer and a fixed seat, an outside of a first pressure relief port on the male mold being connected to an input end of a safety pressure relief valve, the female mold comprising a second gypsum layer, the second gypsum layer being attached to the first gypsum layer to form a mold cavity, the second gypsum layer being surrounded by a sealing plate on the outside, an inner wall of the sealing plate being attached to an outer wall of the fixed seat to form a containing cavity, the volume of the containing cavity being greater than that of the mold cavity, the equal-interval variable-distance mechanism between the double-sided mold mounting plates shortens the moving stroke, balances the pressure of each mold cavity, and the process of first grouting the containing cavity at low pressure and then compressing the containing cavity to form the mold cavity reduces the impact on the gypsum layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ceramic production, in particular to a stacked mold slip casting process for daily-use ceramic production and a stacked mold slip casting equipment for daily-use ceramic production. BACKGROUND

[0002] Currently, domestic ceramic production and processing are mainly based on manual slip casting, and gypsum molds are used for compression molding production. The production efficiency is low, the labor intensity of workers is large, and the product quality is uneven, which seriously affects the production of products. High-pressure slip casting machines produced by Germany and other countries have successfully replaced manual slip casting, and such slip casting equipment has been introduced in China. However, the existing slip casting equipment on the market is a single production device, that is, each machine can only install one set of mold, and one corresponding product can be produced at a time. Due to the precision requirements of the equipment, the installation and debugging of the mold are very time-consuming and laborious. In actual production, the hydraulic power cannot be fully utilized, which often wastes a lot of energy and is not environmentally friendly. Moreover, the hydraulic pump station needs to be restarted and operated again after each production demolding, which prolongs the actual production time, and the personnel are idle during machine operation, which wastes manpower and reduces the production efficiency.

[0003] Chinese patent application No. CN201811157302.4 discloses a stacked mold slip casting machine for daily-use ceramic production, which comprises a base, a rack, a high-pressure slip storage tank, a high-pressure air pump, and a hydraulic pump station. The rack is fixed on the base, the hydraulic pump station is fixed on the base and adjacent to the right side of the rack, the inside of the rack is provided with a fixed mold, a pushing mold, and at least two double-sided molds, and the fixed mold is fixed in the middle of the left vertical column of the rack and faces the inside of the rack. The device uses double-sided molds and fixed molds and pushing molds in a stacked mold structure to simultaneously produce different products during production.

[0004] However, the device directly sets the hydraulic cylinder of the hydraulic system at the last end of the machine body frame. This design has a long stroke of the hydraulic cylinder piston rod, a slow action of the matched hydraulic system and mold closing mechanism, a long working time, poor mold closing matching precision, low qualified rate of formed bodies, and a large impact of raw materials on the gypsum layer during high-pressure slip casting, which affects the quality of the formed bodies after processing. SUMMARY

[0005] Therefore, it is necessary to provide a stacked mold slip casting process and equipment for daily-use ceramic production to solve the problems in the prior art.

[0006] To solve the problems in the prior art, the present application adopts the following technical solutions:

[0007] The utility model provides a kind of stacked mould grouting equipment for daily ceramic production, including installation frame and several vertical double-sided mould mounting plates slidingly installed on installation frame, between adjacent two double-sided mould mounting plates, it is connected by equal interval variable pitch mechanism, coaxially arranged male mould and female mould are fixedly installed on the both sides of double-sided mould mounting plate, the side of installation frame is provided with pusher, the working end of pusher is horizontally arranged, the working end of pusher is fixedly installed on double-sided mould mounting plate, male mould is made of first gypsum layer and fixed seat, and the first gypsum layer and fixed seat are connected by a plurality of connecting seats, male mould is provided with first pressure relief port, the outside of first pressure relief port is connected with the input end of safety pressure relief valve, female mould includes second gypsum layer, and the second gypsum layer and first gypsum layer are attached to form the mould cavity that is consistent with the shape of ceramic, the outside of second gypsum layer is surrounded by closure plate, the length of closure plate in horizontal direction is greater than second gypsum layer, and the inner wall of closure plate is attached to the outer wall of fixed seat to form accommodating cavity, the volume of accommodating cavity is greater than mould cavity, and grouting channel penetrates second gypsum layer and closure plate, and grouting channel is connected with grouting raw material conveying device by grouting pipeline.

[0008] Preferably, the upper end of the double-sided mould mounting plate is provided with an upper pulley block, and the lower end of the double-sided mould mounting plate is provided with a lower pulley block. The rotation axes of the upper pulley block and the lower pulley block are arranged in a horizontal direction perpendicular to the working axis of the pusher. The upper pulley block is in sliding fit with upper sliding rails arranged on both sides of the top of the installation frame, and the lower pulley block is in sliding fit with lower sliding rails arranged on both sides of the bottom of the installation frame. The upper sliding rails and the lower sliding rails extend along the axis of the pusher. The upper sliding rails of the installation frame are connected by a connecting plate. A cover plate is fixedly installed on the upper side of the upper sliding rails.

[0009] Preferably, the equal interval variable pitch mechanism includes a connecting sleeve arranged on the upper pulley block. The connecting sleeve extends along the axis of the upper pulley block. The two ends of the connecting sleeve are provided with first vertical columns extending upward. The connecting sleeves of adjacent two double-sided mould mounting plates are connected by two connecting arms. The two ends of the connecting arms are respectively inserted into the first vertical columns on the opposite sides of the two connecting sleeves. The connecting arms are arranged along the axis of the pusher in a scissor type.

[0010] Preferably, a sliding block is arranged between the two connecting sleeves. The bottom center of the sliding block is provided with a first vertical column extending downward. The first vertical column is inserted into the central axis of the connecting arm between the two connecting sleeves. The top of the sliding block is provided with at least two guide sleeves. The connecting plate at the top of the installation frame is provided with guide rods coaxial with the guide sleeves. The sliding block is sleeved on the guide rods and moves along the axis of the guide rods.

[0011] Preferably, the two sides of the double-sided mould mounting plate are provided with mounting seats protruding from the surface of the double-sided mould mounting plate to connect the male mould and the female mould. The first pressure relief port of the male mould extends horizontally and is located on the side of the male mould facing the mounting seat. The output end of the safety pressure relief valve is connected by a pipeline to a discharging channel arranged in the mounting seat.

[0012] Preferably, the second gypsum layer of the female die is provided with a blocking column on the side facing the first pressure relief port, the cross-sectional shape of the blocking column is consistent with the first pressure relief port, and the axis of the blocking column is in line with the first pressure relief port.

[0013] Preferably, a second pressure relief port is arranged in the female die, the second pressure relief port is arranged between the second gypsum layer and the closing plate, the output end of the second pressure relief port is arranged on the outside of the closing plate, and the output end of the second pressure relief port is connected to the input end of the first control valve.

[0014] Preferably, the side of the double-sided die mounting plate is provided with a first fixing plate, a high-pressure pump body is fixedly installed on the first fixing plate, the input end of the high-pressure pump body is connected to the storage device of the grouting raw material, the output end of the high-pressure pump body is connected to the input end of the grouting pipeline, and the grouting pipeline is further provided with a second control valve.

[0015] Preferably, the pushing device comprises a mounting box mounted on one side of the mounting frame, a hydraulic oil cylinder is fixedly installed in the mounting box, the working shaft of the hydraulic oil cylinder is arranged horizontally, a push plate is arranged on the side of the double-sided die mounting plate facing the pushing device, a plurality of longitudinal and transverse intersecting reinforcing partitions are arranged on the push plate, a limiting groove is arranged between the reinforcing partitions, and the push rod fixed head fixedly installed on the working end of the hydraulic oil cylinder is limitingly installed in the limiting groove.

[0016] The application also provides a double-mold grouting process for the production of daily-use ceramics, which adopts the double-mold grouting equipment for the production of daily-use ceramics to perform the following steps.

[0017] S1, preparing a male die, a female die and grouting raw materials;

[0018] S2, fixing the position of the middle double-sided die mounting plate, and mounting the male die and the female die on the two sides of each double-sided die mounting plate;

[0019] S3, setting the standard pressure value of the safety pressure relief valve on the side of the male die;

[0020] S4, starting the pushing device on one side of the mounting frame to drive the adjacent two double-sided die mounting plates to be close to each other, the male die is first inserted into the closing plate of the female die to form a sealed containing cavity, and the grouting raw materials are injected into the female die through the grouting channel at low pressure to fill the containing cavity;

[0021] S5, the grouting raw materials are injected into the containing cavity through the grouting channel at high pressure, the pushing device drives the double-sided die mounting plates to continue to approach until the first gypsum layer of the male die and the second gypsum layer of the female die are attached to form a mold cavity, and the excess raw materials are discharged through the first pressure relief port under high pressure;

[0022] S6, after the pushing device maintains the position of the double-sided die mounting plate for a period of time for high-pressure forming, the pushing device drives the double-sided die mounting plates to separate, and the workers collect the formed blank molds.

[0023] The beneficial effects of the present application compared to the prior art are:

[0024] 1. The present application realizes simultaneous slip casting of multiple ceramics and improves production efficiency by installing a plurality of double-sided mold mounting plates on the mounting frame, forming a stack mold process with the male mold and female mold installed on both sides of the double-sided mold mounting plate.

[0025] 2. The present application greatly shortens the working end stroke of the pushing device by connecting adjacent double-sided mold mounting plates through the equal interval variable distance mechanism and fixing the double-sided mold mounting plate in the middle of the mounting frame, and also ensures that the distance between the double-sided mold mounting plates changes the same internal pressure, thereby improving the quality of the finished product.

[0026] 3. The present application gradually increases the pressure on both sides of the first gypsum layer and the second gypsum layer by first inputting raw materials into the containing cavity at low pressure and then moving the double-sided mold mounting plate to compress the raw material stroke cavity, which is relatively small compared to the impact pressure of the first gypsum layer of the male mold and the second gypsum layer of the female mold in the traditional high-pressure slip casting process, thereby better protecting the shape of the first gypsum layer and the second gypsum layer, ensuring the quality of the molded embryo, and also improving the service life of the male mold and the female mold.

[0027] 4. The present application maintains the pressure in the containing cavity within a suitable range by the safety relief valve at the first pressure relief port, and when the pressure in the containing cavity reaches the safety value set by the safety relief valve on the side of the male mold, the raw materials in the containing cavity are discharged outward through the first pressure relief port, maintaining a constant pressure in the containing cavity until the first gypsum layer and the second gypsum layer are attached.

[0028] 5. The present application discharges the raw materials sandwiched between the fixed seat and the closure plate through the second pressure relief port to prevent the raw materials from being squeezed and affecting the mold closing of the male mold and the female mold. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a flowchart of the stack mold slip casting process of the present application;

[0030] Figure 2 is a front view of the stack mold slip casting equipment of the present application;

[0031] Figure 3 is a perspective view of the stack mold slip casting equipment of the present application;

[0032] Figure 4 is Figure 3 the A partial enlarged view of

[0033] Figure 5 is a perspective structural exploded view of the mounting frame and double-sided mold mounting plate of the stack mold slip casting equipment of the present application and a partial enlarged view thereof;

[0034] Figure 6This is a side view of the stacked grouting equipment of this application;

[0035] Figure 7 yes Figure 6 Sectional view of section BB and its enlarged partial view;

[0036] Figure 8 yes Figure 7 A magnified view of a portion at point C;

[0037] Figure 9 This is a side view of the double-sided mold mounting plate of the stacked mold grouting equipment of this application in the attached state;

[0038] Figure 10 yes Figure 9 Sectional view of the DD section and its enlarged partial view;

[0039] The numbers on the map are:

[0040] 1-Mounting frame; 1a-Pushing device; 1a1-Mounting box; 1a2-Hydraulic cylinder; 1a3-Push rod fixing head; 1b-Upper slide rail; 1b1-Connecting plate; 1b2-Cover plate; 1c-Lower slide rail; 1d-Guide rod;

[0041] 2-Double-sided mold mounting plate; 2a-Equal spacing variable distance mechanism; 2a1-Connecting sleeve; 2a2-First column; 2a3-Connecting arm; 2a4-Slider; 2a5-First shaft column; 2a6-Guide sleeve; 2b-Upper pulley assembly; 2c-Lower pulley assembly; 2d-Mounting base; 2d1-Discharge channel; 2e-First fixing plate; 2f-Push plate; 2f1-Reinforcing partition; 2f2-Limiting groove;

[0042] 3-Punch; 3a-First plaster layer; 3b-Fixed seat; 3c-Connecting seat; 3d-First pressure relief port; 3d1-Safety pressure relief valve;

[0043] 4-Die; 4a-Second gypsum layer; 4a1-Mold cavity; 4a2-Sealing column; 4b-Sealing plate; 4b1-Receiving cavity; 4b2-Second pressure relief port; 4b3-First control valve; 4c-Grouting channel; 4c1-Grouting pipe; 4c2-Second control valve; 4d-High-pressure pump body. Detailed Implementation

[0044] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0045] like Figures 1 to 10 As shown, this application provides:

[0046] A stacked mold grouting process for the production of daily-use ceramics is disclosed. This process relies on a stacked mold grouting device for daily-use ceramics production. The device includes a mounting frame 1 and several vertically arranged double-sided mold mounting plates 2 slidably mounted on the mounting frame 1. Adjacent double-sided mold mounting plates 2 are connected by an equal-space variable-pitch mechanism 2a. Coaxially arranged punches 3 and concave molds 4 are fixedly mounted on both sides of each double-sided mold mounting plate 2. A pushing device 1a is provided on one side of the mounting frame 1, with its working end horizontally positioned and fixedly mounted on the double-sided mold mounting plate 2. The punch 3 consists of a first plaster layer 3a and a fixing seat 3b. The fixing seat 3b is connected to the double-sided mold mounting plate 2 via several connecting... The base 3c is connected, and the punch 3 is provided with a first pressure relief port 3d. The outer side of the first pressure relief port 3d is connected to the input end of the safety pressure relief valve 3d1. The die 4 includes a second gypsum layer 4a. The second gypsum layer 4a and the first gypsum layer 3a are bonded together to form a mold cavity 4a1 that matches the shape of the ceramic. The outer side of the second gypsum layer 4a is surrounded by a sealing plate 4b. The horizontal length of the sealing plate 4b is greater than that of the second gypsum layer 4a. The inner wall of the sealing plate 4b is bonded to the outer wall of the fixing base 3b to form a receiving cavity 4b1. The volume of the receiving cavity 4b1 is greater than that of the mold cavity 4a1. The grouting channel 4c passes through the second gypsum layer 4a and the sealing plate 4b. The grouting channel 4c is connected to the grouting material conveying device through the grouting pipe 4c1. The stacked mold grouting process includes the following steps:

[0047] S1. Prepare punch 3, die 4 and injection material;

[0048] S2. Fix the position of the middle double-sided mold mounting plate 2, and install the punch 3 and the die 4 on both sides of each double-sided mold mounting plate 2 respectively;

[0049] S3. Set the standard pressure value of the safety relief valve 3d1 on one side of the punch 3;

[0050] S4. Start the pushing device 1a on one side of the installation frame 1 to drive the two adjacent double-sided mold installation plates 2 to come closer together. The punch 3 first inserts into the closed plate 4b of the die 4 to form a sealed receiving cavity 4b1. The grouting material is injected into the die 4 at low pressure through the grouting channel 4c to fill the receiving cavity 4b1.

[0051] S5. The grouting material is injected into the receiving cavity 4b1 under high pressure through the grouting channel 4c. The pushing device 1a drives the double-sided mold mounting plate 2 to continue to approach until the first gypsum layer 3a of the punch 3 and the second gypsum layer 4a of the concave mold 4 are bonded to form the mold cavity 4a1. Excess material is discharged through the first pressure relief port 3d under high pressure.

[0052] S6. After the pushing device 1a maintains the position of the double-sided mold mounting plate 2 for a period of time for high-pressure molding, the pushing device 1a drives the double-sided mold mounting plate 2 to separate, and the staff collects the molded blank.

[0053] Based on the above embodiments, the technical problem this application aims to solve is how to shorten the stroke of the hydraulic cylinder while ensuring that the pressure inside the mold is equal and at a suitable pressure value during each high-pressure grouting. To this end, this application uses a plurality of double-sided mold mounting plates 2 slidably mounted on the mounting frame 1, along with punches 3 and concave molds 4 mounted on both sides of the double-sided mold mounting plates 2 to form a stacked mold process, enabling simultaneous grouting and molding of multiple ceramics, thus improving production efficiency. During processing, the double-sided mold mounting plate 2 located in the middle of the mounting frame 1 is first fixed. In this embodiment, a horizontal straight plate is set on the double-sided mold mounting plate 2, and the straight plate is fixed by clamps on the mounting frame 1 to ensure the stable position of the double-sided mold mounting plate 2 in the middle of the mounting frame 1. This is achieved by coordinating the double-sided mold mounting plates between the pushing device 1a. The equidistant movement of the double-sided mold mounting plate 2 to both sides, compared to completely pushing the double-sided mold mounting plate 2 to one end of the mounting frame 1, greatly shortens the working end stroke of the pushing device 1a, and also ensures that the spacing between the double-sided mold mounting plates 2 changes in the same way and the internal pressure is the same, thus improving the quality of the finished product. In this embodiment, the pushing device 1a drives the double-sided mold mounting plate 2 to move. When the closing plate 4b of the concave mold 4 wraps around the outside of the fixed seat 3b, a sealed receiving cavity 4b1 is formed. At this time, a certain amount of raw material is first injected into the receiving cavity 4b1 through the grouting channel 4c. After the raw material fills the receiving cavity 4b1, The pushing device 1a continues to drive the double-sided mold mounting plate 2 to move closer. The presence of the connecting seat 3c provides the moving distance for the sealing plate 4b. At this time, the volume of the receiving cavity 4b1 decreases, compressing the raw material in the receiving cavity 4b1. The raw material is still injected into the sealing plate 4b under high pressure through the grouting channel 4c, increasing the pressure in the receiving cavity 4b1. When the pressure in the receiving cavity 4b1 reaches the safety value set by the safety relief valve 3d1 on the side of the punch 3, the raw material in the receiving cavity 4b1 is discharged outward through the first relief port 3d, maintaining a constant pressure in the receiving cavity 4b1. Until the first plaster layer 3a and the second plaster layer 4a are bonded together to form a closed mold cavity 4a1, the raw material in the mold cavity 4a1 is molded under a suitable high pressure. In this embodiment, the pressure of the raw material on both sides of the first plaster layer 3a and the second plaster layer 4a gradually increases. Compared with the high pressure injection of the traditional process, the impact pressure on the first plaster layer 3a of the punch 3 and the second plaster layer 4a of the die 4 is smaller, thus better protecting the shape of the first plaster layer 3a and the second plaster layer 4a, ensuring the quality of the mold blank after molding, and also improving the service life of the punch 3 and the die 4.

[0054] Furthermore, such as Figures 2 to 10 As shown:

[0055] A stacked mold injection device for daily-use ceramics production includes a mounting frame 1 and several vertically arranged double-sided mold mounting plates 2 slidably mounted on the mounting frame 1. Adjacent double-sided mold mounting plates 2 are connected by an equal-space variable-pitch mechanism 2a. A coaxially arranged punch 3 and die 4 are fixedly mounted on both sides of the double-sided mold mounting plate 2. A pushing device 1a is provided on one side of the mounting frame 1, with its working end horizontally positioned and fixedly mounted on the double-sided mold mounting plate 2. The punch 3 consists of a first plaster layer 3a and a fixing seat 3b. The fixing seat 3b is connected to the double-sided mold mounting plate 2 by several connecting seats 3c. The mold 3 is provided with a first pressure relief port 3d, the outer side of which is connected to the input end of the safety pressure relief valve 3d1. The mold 4 includes a second gypsum layer 4a, which is bonded to the first gypsum layer 3a to form a mold cavity 4a1 that matches the shape of the ceramic. The outer side of the second gypsum layer 4a is surrounded by a sealing plate 4b, which is longer than the second gypsum layer 4a in the horizontal direction. The inner wall of the sealing plate 4b is bonded to the outer wall of the fixing seat 3b to form a receiving cavity 4b1, which has a volume larger than the mold cavity 4a1. The grouting channel 4c passes through the second gypsum layer 4a and the sealing plate 4b, and is connected to the grouting material conveying device through the grouting pipe 4c1.

[0056] The upper end of the double-sided mold mounting plate 2 is provided with an upper pulley group 2b, and the lower end of the double-sided mold mounting plate 2 is provided with a lower pulley group 2c. The rotation axis of the upper pulley group 2b and the lower pulley group 2c is arranged in a horizontal direction perpendicular to the working axis of the pushing device 1a. The upper pulley group 2b is slidably engaged with the upper slide rail 1b arranged on both sides of the top of the mounting frame 1, and the lower pulley group 2c is slidably engaged with the lower slide rail 1c arranged on both sides of the bottom of the mounting frame 1. The upper slide rail 1b and the lower slide rail 1c extend along the axial direction of the pushing device 1a. The two ends of the upper slide rail 1b of the mounting frame 1 are connected by a connecting plate 1b1, and a cover plate 1b2 is fixedly installed on the upper side of the upper slide rail 1b.

[0057] Based on the above embodiments, this application reduces the friction force when the double-sided mold mounting plate 2 moves horizontally by setting an upper pulley group 2b and a lower pulley group 2c at the upper and lower ends of the double-sided mold mounting plate 2 respectively, which slides with the upper slide rail 1b and the lower slide rail 1c of the mounting frame 1, thereby improving the moving efficiency of the double-sided mold mounting plate 2. The cover plate 1b2 at the top of the mounting frame 1 prevents dust from accumulating on the punch 3 and the die 4, thus affecting the processing.

[0058] Furthermore, such as Figure 5 and 7 As shown:

[0059] The equal-distance variable-pitch mechanism 2a includes a connecting sleeve 2a1 disposed on the upper pulley group 2b. The connecting sleeve 2a1 extends along the axial direction of the upper pulley group 2b. The two ends of the connecting sleeve 2a1 are provided with first columns 2a2 extending vertically upward. The connecting sleeves 2a1 of two adjacent double-sided mold mounting plates 2 are connected by two connecting arms 2a3. The two ends of the connecting arms 2a3 are respectively inserted into the first columns 2a2 on opposite sides of the two connecting sleeves 2a1. The connecting arms 2a3 are arranged in a scissor-like manner along the axis of the pushing device 1a.

[0060] A slider 2a4 is provided between two adjacent connecting sleeves 2a1. A first shaft post 2a5 extending vertically downward is provided at the bottom center of the slider 2a4. The first shaft post 2a5 is inserted at the central axis of the connecting arm 2a3 between the two adjacent connecting sleeves 2a1. At least two guide sleeves 2a6 are provided at the top of the slider 2a4. A guide rod 1d coaxial with the guide sleeves 2a6 is provided between the connecting plates 1b1 at the top of the mounting frame 1. The slider 2a4 moves along the axis of the guide rod 1d by being fitted onto the guide rod 1d.

[0061] Based on the above embodiments, the technical problem this application aims to solve is how the equal-distance variable-pitch mechanism 2a achieves equal-distance variable-pitch between the double-sided mold mounting plates 2. To this end, this application uses a connecting sleeve 2a1 installed on the top of each double-sided mold mounting plate 2. The first pillars 2a2 at both ends of the connecting sleeve 2a1, in conjunction with scissor-type connecting arms 2a3, connect each double-sided mold mounting plate 2. The crossed connecting arms 2a3 are inserted into the first shaft post 2a5 of the slider 2a4. The slider 2a4 is slidably mounted on the guide rod 1d to ensure that the centers of the connecting arms 2a3 are on the same straight line. Thus, when the double-sided mold mounting plates 2 move, the connecting arms 2a3 rotate stably around the axis of the first shaft post 2a5, driving the double-sided mold mounting plates 2 on both sides to move at equal intervals. Combined with the fixed position of the middle double-sided mold mounting plate 2, the pushing device 1a only needs to move one side of the double-sided mold mounting plate 2 to drive all the double-sided mold mounting plates 2 to move at equal intervals, shortening the working end stroke of the pushing device 1a.

[0062] Furthermore, such as Figures 8 to 10 As shown:

[0063] The double-sided mold mounting plate 2 has mounting seats 2d protruding from the surface of the double-sided mold mounting plate 2 on both sides, which connect the punch 3 and the die 4. The first pressure relief port 3d of the punch 3 extends horizontally to the side of the punch 3 facing the mounting seat 2d. The output end of the safety pressure relief valve 3d1 is connected to the discharge channel 2d1 set inside the mounting seat 2d through a pipe.

[0064] A sealing post 4a2 is provided on the side of the second gypsum layer 4a of the concave mold 4 facing the first pressure relief port 3d. The cross-sectional shape of the sealing post 4a2 matches the first pressure relief port 3d, and the axis of the sealing post 4a2 is on the same straight line as the first pressure relief port 3d.

[0065] Based on the above embodiments, the technical problem that this application aims to solve is how to discharge excess raw material in the cavity 4b1 without affecting the mold closing of the punch 3 and the die 4. Therefore, this application uses a connecting seat 3c to maintain a distance between the fixed seat 3b and the surface of the mounting seat 2d of the double-sided mold mounting plate 2, facilitating the movement of the cavity 4b1 during compression. When the first plaster layer 3a and the second plaster layer 4a are attached, the sealing plate 4b is attached to one side of the mounting seat 2d, and the connecting seat 3c is contained inside the opening of the sealing plate 4b. At this time, the safety relief valve 3d1 is also located inside the opening of the sealing plate 4b. The output end of the safety relief valve 3d1 is connected to the discharge channel 2d1 inside the mounting seat 2d, so that excess material can be discharged inside the mounting seat 2d without affecting the attachment of the sealing plate 4b to the surface of the mounting seat 2d. When the first plaster layer 3a and the second plaster layer 4a are attached, the sealing post 4a2 on the second plaster layer 4a is inserted into the first pressure relief port 3d for sealing, ensuring the pressure inside the mold cavity 4a1. After the sealing post 4a2 enters the first pressure relief port 3d, the pressure inside the mold cavity 4a1 further increases when the punch 3 and the die 4 move, improving the pressing and molding effect.

[0066] Furthermore, such as Figure 8 As shown:

[0067] The cavity mold 4 is provided with a second pressure relief port 4b2, which is located between the second gypsum layer 4a and the sealing plate 4b. The output end of the second pressure relief port 4b2 is located on the outside of the sealing plate 4b, and the output end of the second pressure relief port 4b2 is connected to the input end of the first control valve 4b3.

[0068] Based on the above embodiments, this application discharges the raw material trapped between the fixed seat 3b and the closed plate 4b by opening the second pressure relief port 4b2, preventing the raw material from being squeezed and affecting the mold closing of the punch 3 and the die 4. The closing and opening of the first control valve 4b3 ensures that the raw material cannot be discharged when the receiving cavity 4b1 is being formed, and that excess raw material is discharged in time when the mold cavity 4a1 is being formed. The first control valve 4b3 can be a solenoid valve or a manual valve, and excess raw material can be recycled and reused.

[0069] Furthermore, such as Figure 3 As shown:

[0070] The side of the double-sided mold mounting plate 2 is provided with a first fixing plate 2e, and a high-pressure pump body 4d is fixedly installed on the first fixing plate 2e. The input end of the high-pressure pump body 4d is connected to the storage device of the grouting material, and the output end of the high-pressure pump body 4d is connected to the input end of the grouting pipe 4c1. A second control valve 4c2 is also provided on the grouting pipe 4c1.

[0071] Based on the above embodiments, this application installs a high-pressure pump body 4d on the first fixing plate 2e on one side of the double-sided mold mounting plate 2, so that when the double-sided mold mounting plate 2 moves, the high-pressure pump body 4d can stably inject raw materials into the cavity 4b1. The high-pressure pump body 4d can be a diaphragm pump. The input end of the high-pressure pump body 4d is connected to the output end of a raw material storage device such as a high-pressure storage tank. The second control valve 4c2 on the grouting pipe 4c1 can be a one-way valve to prevent the raw materials in the mold cavity 4a1 from flowing back.

[0072] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown:

[0073] The pushing device 1a includes a mounting box 1a1 installed on one side of the mounting frame 1. A hydraulic cylinder 1a2 is fixedly installed inside the mounting box 1a1. The working shaft of the hydraulic cylinder 1a2 is horizontally arranged. A push plate 2f is provided on the side of the double-sided mold mounting plate 2 facing the pushing device 1a. Several crisscrossing reinforcing partitions 2f1 are provided on the push plate 2f. Limiting grooves 2f2 are provided between the reinforcing partitions 2f1. The push rod fixing head 1a3 fixedly installed at the working end of the hydraulic cylinder 1a2 is limited and installed in the limiting groove 2f2.

[0074] Based on the above embodiments, this application uses a mounting box 1a1 to fix a hydraulic cylinder 1a2. The push rod fixing head 1a3 at the working end of the hydraulic cylinder 1a2 pushes the push plate 2f on one side of the double-sided mold mounting plate 2 to ensure that the double-sided mold mounting plate 2 moves horizontally. The reinforcing partition 2f1 on the push plate 2f strengthens the overall structural stability of the push plate 2f.

[0075] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A stacked mold slip casting device for the production of daily-use ceramics, characterized in that, The system includes a mounting frame (1) and several vertically arranged double-sided mold mounting plates (2) that are slidably mounted on the mounting frame (1). Adjacent double-sided mold mounting plates (2) are connected by an equal-space variable-pitch mechanism (2a). Coaxially arranged punches (3) and dies (4) are fixedly mounted on both sides of the double-sided mold mounting plates (2). A pushing device (1a) is provided on one side of the mounting frame (1). The working end of the pushing device (1a) is horizontally positioned and fixedly mounted on the double-sided mold mounting plate (2). The punch (3) consists of a first gypsum layer (3a) and a fixing seat (3b). The fixing seat (3b) is connected to the double-sided mold mounting plate (2) via several connecting seats (3c). A first pressure relief port is provided on the punch (3). 3d), the outer side of the first pressure relief port (3d) is connected to the input end of the safety pressure relief valve (3d1), the concave mold (4) includes a second gypsum layer (4a), the second gypsum layer (4a) and the first gypsum layer (3a) are bonded to form a mold cavity (4a1) that matches the shape of the ceramic, the outer side of the second gypsum layer (4a) is surrounded by a sealing plate (4b), the length of the sealing plate (4b) in the horizontal direction is greater than that of the second gypsum layer (4a), the inner wall of the sealing plate (4b) is bonded to the outer wall of the fixing seat (3b) to form a receiving cavity (4b1), the volume of the receiving cavity (4b1) is greater than that of the mold cavity (4a1), the grouting channel (4c) passes through the second gypsum layer (4a) and the sealing plate (4b), and the grouting channel (4c) is connected to the grouting material conveying device through the grouting pipe (4c1).

2. The stacked mold injection equipment for daily-use ceramics production according to claim 1, characterized in that, The upper end of the double-sided mold mounting plate (2) is provided with an upper pulley group (2b), and the lower end of the double-sided mold mounting plate (2) is provided with a lower pulley group (2c). The rotation axis of the upper pulley group (2b) and the lower pulley group (2c) is arranged in a horizontal direction perpendicular to the working axis of the pushing device (1a). The upper pulley group (2b) is slidably engaged with the upper slide rail (1b) arranged on both sides of the top of the mounting frame (1). The lower pulley group (2c) is slidably engaged with the lower slide rail (1c) on both sides of the bottom of the mounting frame (1). The upper slide rail (1b) and the lower slide rail (1c) extend along the axial direction of the pushing device (1a). The two ends of the upper slide rail (1b) of the mounting frame (1) are connected by a connecting plate (1b1). A cover plate (1b2) is fixedly installed on the upper side of the upper slide rail (1b).

3. The stacked mold injection equipment for daily-use ceramics production according to claim 2, characterized in that, The equal-distance variable-pitch mechanism (2a) includes a connecting sleeve (2a1) set on the upper pulley group (2b). The connecting sleeve (2a1) extends along the axis of the upper pulley group (2b). The two ends of the connecting sleeve (2a1) are provided with a first column (2a2) extending vertically upward. The connecting sleeves (2a1) of two adjacent double-sided mold mounting plates (2) are connected by two connecting arms (2a3). The two ends of the connecting arms (2a3) are respectively inserted into the first column (2a2) on the opposite side of the two connecting sleeves (2a1). The connecting arms (2a3) are arranged in a scissor shape along the axis of the pushing device (1a).

4. The stacked mold injection equipment for daily-use ceramics production according to claim 3, characterized in that, A slider (2a4) is provided between two adjacent connecting sleeves (2a1). A first shaft post (2a5) extending vertically downward is provided at the bottom center of the slider (2a4). The first shaft post (2a5) is inserted at the central axis of the connecting arm (2a3) between two adjacent connecting sleeves (2a1). At least two guide sleeves (2a6) are provided at the top of the slider (2a4). A guide rod (1d) coaxial with the guide sleeve (2a6) is provided between the connecting plates (1b1) at the top of the mounting frame (1). The slider (2a4) moves along the axis of the guide rod (1d) by being fitted onto the guide rod (1d) by the slider (2a4).

5. A stacked mold injection equipment for daily-use ceramics production according to claim 1, characterized in that, The double-sided mold mounting plate (2) has mounting seats (2d) protruding from the surface of the double-sided mold mounting plate (2) on both sides to connect the punch (3) and the die (4). The first pressure relief port (3d) of the punch (3) extends horizontally to the side of the punch (3) facing the mounting seat (2d). The output end of the safety pressure relief valve (3d1) is connected to the discharge channel (2d1) set inside the mounting seat (2d) through a pipe.

6. A stacked mold injection equipment for daily-use ceramics production according to claim 5, characterized in that, A sealing post (4a2) is provided on the side of the second gypsum layer (4a) of the concave mold (4) facing the first pressure relief port (3d). The cross-sectional shape of the sealing post (4a2) matches the first pressure relief port (3d), and the axis of the sealing post (4a2) is on the same straight line as the first pressure relief port (3d).

7. A stacked mold injection equipment for daily-use ceramics production according to claim 1, characterized in that, The cavity (4) is provided with a second pressure relief port (4b2), which is located between the second gypsum layer (4a) and the sealing plate (4b). The output end of the second pressure relief port (4b2) is located on the outside of the sealing plate (4b), and the output end of the second pressure relief port (4b2) is connected to the input end of the first control valve (4b3).

8. A stacked mold injection equipment for daily-use ceramics production according to claim 1, characterized in that, A first fixing plate (2e) is provided on the side of the double-sided mold mounting plate (2). A high-pressure pump body (4d) is fixedly installed on the first fixing plate (2e). The input end of the high-pressure pump body (4d) is connected to the storage device of the grouting material, and the output end of the high-pressure pump body (4d) is connected to the input end of the grouting pipe (4c1). A second control valve (4c2) is also provided on the grouting pipe (4c1).

9. A stacked mold injection equipment for daily-use ceramics production according to claim 1, characterized in that, The pushing device (1a) includes a mounting box (1a1) installed on one side of the mounting frame (1). A hydraulic cylinder (1a2) is fixedly installed inside the mounting box (1a1). The working shaft of the hydraulic cylinder (1a2) is horizontally set. A push plate (2f) is set on the side of the double-sided mold mounting plate (2) facing the pushing device (1a). Several crisscrossing reinforcing partitions (2f1) are set on the push plate (2f). Limiting grooves (2f2) are set between the reinforcing partitions (2f1). The push rod fixing head (1a3) fixedly installed at the working end of the hydraulic cylinder (1a2) is limited and installed in the limiting groove (2f2).

10. A slip casting process for the production of daily-use ceramics, characterized in that, The following steps are performed using the stacked mold slip casting equipment for the production of daily-use ceramics as described in any one of claims 1 to 9: S1. Prepare the punch (3), die (4) and grouting material; S2. Fix the position of the middle double-sided mold mounting plate (2), and install the punch (3) and the die (4) on both sides of each double-sided mold mounting plate (2); S3. Set the standard pressure value of the safety relief valve (3d1) on one side of the punch (3); S4. Start the pushing device (1a) on one side of the installation frame (1) to drive the two adjacent double-sided mold installation plates (2) to come closer together. The punch (3) first inserts into the closed plate (4b) of the concave mold (4) to form a sealed cavity (4b1). The grouting material is injected into the concave mold (4) at low pressure through the grouting channel (4c) to fill the cavity (4b1). S5. The grouting material is injected into the receiving cavity (4b1) under high pressure through the grouting channel (4c). The pushing device (1a) drives the double-sided mold mounting plate (2) to continue to approach until the first gypsum layer (3a) of the punch (3) and the second gypsum layer (4a) of the die (4) are bonded to form the mold cavity (4a1). Excess material is discharged through the first pressure relief port (3d) under high pressure. S6. After the pushing device (1a) maintains the position of the double-sided mold mounting plate (2) for a period of time for high-pressure molding, the pushing device (1a) drives the double-sided mold mounting plate (2) to separate, and the staff collects the molded blank.

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