Ceramic grouting mold film covering device

Abstract

The invention provides a ceramic grouting mold film covering device. The ceramic grouting mold film covering device comprises a rack, a jacking piece and a driving device. The four jacking and supporting pieces are movably arranged on the rack, and the four jacking and supporting pieces are used for expanding the filtering membrane from the interior and can make the four corners of the filtering membrane abut against the four corners of an inner cavity of the upper mold or the lower mold of the grouting mold; the driving device is used for driving the jacking piece to move close to or away from the four corners of an inner cavity of the upper mold or the lower mold of the grouting mold. An upper mold or a lower mold of a grouting mold is inversely buckled on a rack, water mist is sprayed to the inner wall of the upper mold or the lower mold of the grouting mold, a filtering membrane inversely covers four jacking pieces, and a driving device drives the jacking pieces to move to the four corners of an inner cavity of the upper mold or the lower mold of the grouting mold; the three outer surfaces of the filter membrane are attached to the inner wall of the upper mold or the lower mold of the grouting mold through the top plate, the first side plate and the second side plate of the jacking piece correspondingly, the filter membrane is laid and formed at a time, efficiency is high, and the filter membrane and the grouting mold are attached flatly.

Description

Technical Field

[0001] The invention relates to the technical field of material forming equipment, and in particular to a ceramic slip casting mould coating device. Background Art

[0002] There are many ways to form plate-type ceramics, including die casting, cold isostatic pressing, tape casting and slip casting. In the slip casting process, due to the difficulty in controlling the conditions, it is easy to cause hollowing, cracking, uneven density and other problems in the ceramic embryo.

[0003] In the prior art, in order to obtain high-density and high-uniformity plate-type ceramic embryos, the grouting mold used is composed of a porous panel layer and an elastic material layer from the outside to the inside. There is an open rectangular mold cavity in the upper and lower molds of the grouting mold before the mold is closed. The filter membrane needs to be laid in the rectangular mold cavity of the upper and lower molds before the mold is closed. In order to ensure the molding quality, the filter membrane needs to fit with the rectangular mold cavity, so the filter membrane presents a bag-like shape with an opening. In the process of laying the filter membrane, manual laying is mainly adopted. In order to ensure that the filter membrane fits with the inner wall of the mold cavity, the filter membrane remains straight and has no wrinkles, and the laying efficiency is low. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a ceramic slip casting mold coating device, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems in the prior art.

[0005] The present invention provides a ceramic grouting mold coating device, comprising:

[0006] A frame, on which an inverted upper mold or lower mold of a grouting mold can be arranged;

[0007] Four supporting members are provided and are movably arranged on the frame, and the four supporting members are used to open the filter membrane from the inside and can press the four corners of the filter membrane against the four corners of the inner cavity of the upper mold or the lower mold of the grouting mold; and

[0008] A driving device, used for driving the supporting member to move closer to or away from the four corners of the inner cavity of the upper mold or the lower mold of the grouting mold;

[0009] The top support member comprises:

[0010] The top plate, whose upper end surface is triangular, can drive the filter membrane to abut against the bottom surface of the upper mold or lower mold of the grouting mold;

[0011] A first side plate, the upper end of which is connected to the top plate and can drive the filter membrane to abut against the inner wall of the upper mold or the lower mold of the grouting mold; and

[0012] The second side plate, the upper end of which is connected to the top plate, can drive the filter membrane to abut against the inner wall of the upper mold or the lower mold of the grouting mold.

[0013] Preferably, it also includes:

[0014] Four auxiliary pressure plates, each of which is movably arranged on the corresponding first side plate, and the outer end surface of the auxiliary pressure plate can be parallel to the outer side surface of the first side plate after the auxiliary pressure plate moves outward;

[0015] The driving device is also used to drive the auxiliary pressure plate to move.

[0016] Preferably, the outer walls of the auxiliary pressure plate, the top plate, the first side plate and the second side plate can perform negative pressure adsorption on the filter membrane.

[0017] Preferably, the driving device comprises a driving mechanism and four linkage mechanisms; the linkage mechanisms correspond to the top support members;

[0018] The linkage mechanism comprises:

[0019] A first support rod, arranged on the frame;

[0020] A first sleeve is slidably sleeved on the first support rod along the center line direction thereof, an end of the first sleeve is connected to the first side plate and the second side plate at the same time, and a first limiting window is provided on the first sleeve;

[0021] a first limiting block, the first limiting block being connected to the outer wall of the first supporting rod, and the first limiting block being movable in the first limiting window;

[0022] A first connecting ring, sleeved outside the first sleeve;

[0023] A second sleeve is slidably mounted on the first support rod along the center line of the second sleeve; and

[0024] A first spring is sleeved outside the first sleeve and the first support rod, and two ends of the first spring are respectively connected to the second sleeve and the first connecting ring;

[0025] The driving mechanism is used for driving the second sleeve to slide.

[0026] Preferably, a mounting seat is connected to the inner wall of the first side plate; a support arm is connected to the mounting seat; the support arm extends along the length direction of the first side plate; a stopper is connected to the end of the support arm away from the mounting seat;

[0027] The linkage mechanism also includes:

[0028] A sliding seat, slidably disposed on the support arm, the sliding seat having a tendency to approach the stopper;

[0029] Two first connecting members are provided, and the two connecting members are rotatably connected to two ends of the sliding seat respectively;

[0030] There are two second connecting members, which are rotatably connected to the corresponding first connecting members respectively, and one end of the connecting member away from the first connecting member is fixedly connected to the auxiliary pressure plate, and one of the second connecting members can abut against the stopper;

[0031] At least one second spring is provided, and both ends of the second spring are respectively connected to the auxiliary pressure plate and the sliding seat; and

[0032] A positioning block connected to the sliding seat, wherein an end of the positioning block away from the sliding seat can abut against the inner side of the auxiliary pressure plate;

[0033] When the second connecting member abuts against the stopper, the end of the second spring away from the sliding seat tilts toward the first side plate, and the auxiliary pressure plate is separated from the positioning block; when the second sleeve approaches the first sleeve, the sliding seat slides toward the stopper.

[0034] Preferably, the support arm is provided with a mounting groove along its length direction; one end of the mounting groove is provided with a clearance hole;

[0035] The linkage mechanism also includes:

[0036] A sliding column, slidably disposed in the mounting groove and fixedly connected to the sliding seat;

[0037] A third spring is arranged in the installation groove, the third spring is coaxial with the sliding column, and two ends of the third spring are respectively against the sliding column and the side wall of the installation groove;

[0038] a fixed pulley, disposed on the mounting seat; and

[0039] A pull rope has one end connected to the sliding column, and the other end passes through the third spring and the clearance hole in sequence and around the fixed pulley before being connected to the second sleeve.

[0040] Preferably, the frame includes a vertically arranged guide column;

[0041] The driving mechanism comprises:

[0042] A driving plate is vertically slidably sleeved on the guide column through the opening;

[0043] An electric push rod, arranged on the frame, with an output end connected to the driving disk; and

[0044] Four driving rods, one end of each driving rod is connected to the driving disk, and the other end of each driving rod is rotatably connected to the lower end of the corresponding second sleeve;

[0045] The driving rod is located within the projection of the corresponding first supporting rod on the horizontal plane.

[0046] Preferably, one end of the driving rod away from the driving disk is connected to a trigger block;

[0047] The linkage mechanism also includes:

[0048] A limiting frame, fixedly connected to the lower end of the second sleeve;

[0049] an elastic rod, one end of which is connected to the first connecting ring; and

[0050] A wedge-shaped block connected to an end of the elastic rod away from the first connecting ring;

[0051] When the limit frame approaches the first connecting ring, the inclined surface of the wedge block can abut against the lower inner wall of the limit frame and then move upward briefly and pass through the limit frame; the end of the wedge block close to the connecting ring can abut against the limit frame after passing through the limit frame; the trigger block can abut against the lower end of the wedge block after rotating with the driving rod, and can drive the wedge block to move upward.

[0052] Preferably, a second limiting block is connected to the guide column;

[0053] The driving mechanism further comprises:

[0054] A third sleeve is vertically slidably sleeved on the guide column, an upper end of which is connected to the four first support rods, a second limiting window is opened on the third sleeve, and the second limiting block is located in the second window;

[0055] A second connecting ring, sleeved outside the third sleeve; and

[0056] The fourth spring has two ends connected to the second connecting ring and the driving disk respectively.

[0057] Compared with the prior art, the present invention has the following beneficial effects:

[0058] In the technology of the present invention, the upper mold or the lower mold of the grouting mold is inverted on the frame, and water mist is sprayed on the inner wall of the upper mold or the lower mold of the grouting mold, the filter membrane is inverted and covered on four top support members, and the driving device drives the top support members to move to the four corners of the inner cavity of the upper mold or the lower mold of the grouting mold. The top plate, the first side plate and the second side plate of the top support members respectively fit the three outer surfaces of the filter membrane on the inner wall of the upper mold or the lower mold of the grouting mold. The filter membrane is laid and formed at one time, with high efficiency, and the filter membrane and the grouting mold are flatly fitted. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0060] Figure 1 It is a structural schematic diagram of a grouting mold in the prior art;

[0061] Figure 2 It is a schematic diagram of the cooperation between the ceramic slip casting mold coating device and the slip casting mold in one embodiment of the present invention;

[0062] Figure 3 for Figure 1 Schematic diagram of the coating device for the ceramic slip casting mold;

[0063] Figure 4 for Figure 3 Another schematic diagram of (retaining only the driving mechanism and one linkage mechanism);

[0064] Figure 5 for Figure 4 Schematic diagram of the driving mechanism;

[0065] Figure 6 for Figure 5 Another schematic diagram of;

[0066] Figure 7 for Figure 3 Schematic diagram of the coordination between the middle linkage mechanism, the top support member and the auxiliary pressure plate;

[0067] Figure 8 for Figure 7 Another schematic diagram of (without top support);

[0068] Fig. 9 for Figure 8 Another schematic diagram of;

[0069] Fig.10 for Figure 8 Schematic diagram of the middle support arm;

[0070] Fig.11 for Fig.10 An enlarged schematic diagram of the middle support arm;

[0071] Fig.12 for Figure 7 Schematic diagram of S.

[0072] Reference numerals:

[0073] 10. Upper mold; 11. Lower mold; 12. Porous panel layer; 13. Elastic material layer; 14. Filter membrane; 15. Grouting port;

[0074] 20. Frame; 21. Guide column; 22. Second limit block;

[0075] 30. top support member; 31. top plate; 32. first side plate; 33. second side plate; 34. mounting seat; 35. support arm; 351. mounting groove; 36. stopper;

[0076] 40. Driving device;

[0077] 50. Auxiliary pressure plate;

[0078] 60. driving mechanism; 61. driving disk; 62. electric push rod; 63. driving rod; 64. trigger block; 65. third sleeve; 651. second limit window; 66. second connecting ring; 67. fourth spring;

[0079] 70. linkage mechanism; 71. first support rod; 72. first sleeve; 721. first limit window; 73. first limit block; 74. first connecting ring; 75. second sleeve; 76. first spring; 77. sliding seat; 78. first connecting member; 79. second connecting member; 80. second spring; 81. positioning block; 82. sliding column; 83. third spring; 84. fixed pulley; 85. pull rope; 86. limit frame; 87. elastic rod; 88. wedge block. DETAILED DESCRIPTION

[0080] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0081] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0082] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0083] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0084] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0086] See also Figures 1 to 12 , Figure 1 The structure of the grouting mold includes an upper and lower mold 11. The upper mold 10 and the lower mold 11 of the grouting mold are porous panel layers 12 and elastic material layers 13 from the outside to the inside, and a filter membrane 14 is laid in the elastic material layer 13. A plurality of water outlet holes are provided on the perforated panel layer. After the grouting mold is closed, a grouting port 15 connecting the inside and the outside is formed. After the mold is closed, the grouting is pressurized into the mold through the grouting port 15 and the pressure is maintained. After the pressure maintenance is completed, the grouting valve is closed, and the mold is dried at a constant temperature and humidity. The green body is demoulded to obtain the green body, and sintered at normal pressure.

[0087] With the present grouting mold, due to the barrier effect of the filter membrane 14, after grouting, the water is discharged from the mold through the filter membrane 14, the elastic material layer 13 and the porous panel, and the ceramic green body is left in the mold cavity. During the pressure grouting and pressure holding process, the elastic material layer 13 in the mold is compressed and elastically deformed, and the porous panel plays a supporting role in the process to prevent the mold as a whole from being greatly deformed. After the pressure is removed, the elastic material layer 13 rebounds and evenly provides an inward compression force to the ceramic green body, so as to achieve a uniform density of the ceramic green body, thereby preventing the grouting body from being delaminated or cracked. During the drying process, the elastic material layer 13 can retain a portion of the water, so that the outer surface and the center of the ceramic green body are in a state of humidity balance during the drying process, reducing the stress cracking caused by the different humidity inside and outside.

[0088] This embodiment provides a ceramic slip casting mold coating device, including: a frame 20, a supporting member 30 and a driving device 40.

[0089] The frame 20 can be used to place the inverted upper mold 10 or lower mold 11 of the grouting mold. Four top supports 30 are provided, and the top supports 30 are movably arranged on the frame 20. The four top supports 30 are used to open the filter membrane 14 from the inside and can press the four corners of the filter membrane 14 against the four corners of the inner cavity of the upper mold 10 or lower mold 11 of the grouting mold. The inner cavities of the upper mold 10 and the lower mold 11 of the grouting mold are both rectangular inner cavities, and the bottom of the inner cavity has four corners. The driving device 40 is used to drive the top supports 30 to move closer to or away from the four corners of the inner cavity of the upper mold 10 or lower mold 11 of the grouting mold. Specifically, the overall outer contour of the filter membrane 14 is a rectangular parallelepiped and is adapted to the inner cavity of the upper mold 10 or lower mold 11 of the grouting mold. The lower end opening of the filter membrane 14 is in the shape of an inverted bag, and the upper end bottom of the filter membrane 14 has four corners.

[0090] The top support member 30 includes a top plate 31 , a first side plate 32 and a second side plate 33 .

[0091] The upper end surface of the top plate 31 is triangular, and the top plate 31 can drive the filter membrane 14 to abut against the bottom surface of the upper mold 10 or the lower mold 11 of the grouting mold. The upper end of the first side plate 32 is connected to the top plate 31, and the first side plate 32 can drive the filter membrane 14 to abut against the inner wall of the upper mold 10 or the lower mold 11 of the grouting mold. The upper end of the second side plate 33 is connected to the top plate 31, and the second side plate 33 drives the filter membrane 14 to abut against the inner wall of the upper mold 10 or the lower mold 11 of the grouting mold. The outer end surfaces of the top plate 31, the first side plate 32 and the second side plate 33 are respectively abutted against the four corners of the inner cavity of the upper mold 10 or the lower mold 11 of the grouting mold.

[0092] In this embodiment, the upper mold 10 or the lower mold 11 of the grouting mold is inverted on the frame 20, and water mist is sprayed on the inner wall of the upper mold 10 or the lower mold 11 of the grouting mold, and the filter membrane 14 is inverted and covered on the four top support members 30. The driving device 40 drives the top support members 30 to move to the four corners of the inner cavity of the upper mold 10 or the lower mold 11 of the grouting mold. The top plate 31, the first side plate 32 and the second side plate 33 of the top support member 30 respectively fit the three outer surfaces of the filter membrane 14 on the inner wall of the upper mold 10 or the lower mold 11 of the grouting mold. The filter membrane 14 is laid and formed at one time with high efficiency, and the filter membrane 14 fits smoothly with the grouting mold.

[0093] In one embodiment, the ceramic slip casting mold coating device further includes an auxiliary pressure plate 50 .

[0094] There are four auxiliary pressure plates 50, each of which is movably disposed on a corresponding first side plate 32, and the outer end surface of the auxiliary pressure plate 50 can be parallel to the outer side surface of the first side plate 32 after it moves outward. The driving device 40 is also used to drive the auxiliary pressure plate 50 to move.

[0095] In this embodiment, the auxiliary pressure plate 50 can be retracted to the inner side of the first side plate 32; or it can be extended so that its outer wall is flush with the outer wall of the first side plate 32. The inner cavities of the upper mold 10 and the lower mold 11 of the grouting mold are both rectangular parallelepiped, and the supporting member 30 can press the four corners of the filter membrane 14 against the four corners of the inner cavity of the upper mold 10 or the lower mold 11 of the grouting mold from the inside of the filter membrane 14, so that the filter membrane 14 is adhered to the inner cavity of the grouting mold. The four inner walls of the upper mold 10 or the lower mold 11 of the grouting mold have different widths. After the four corners of the filter membrane 14 are adhered to the four corners of the inner cavity of the upper mold 10 or the lower mold 11, the filter membrane 14 is not adhered to the inner wall at the two wider inner walls, but only relies on the four corners of the filter membrane 14 to adhere to the four corners of the inner cavity of the grouting mold. The filter membrane 14 is loose, so that the filter membrane 14 at this location tends to fall downward and easily forms some corrugated protrusions; by providing an auxiliary pressure plate 50 extending from the first side plate 32 to support this part of the filter membrane 14, the entire filter membrane 14 is more closely attached to the inner cavity of the grouting mold, and is not easy to fall off locally, forming local corrugated stacking, resulting in poor quality of ceramic green body molding.

[0096] In one embodiment, the outer walls of the auxiliary pressure plate 50, the top plate 31, the first side plate 32, and the second side plate 33 can perform negative pressure adsorption on the filter membrane 14. Specifically, a plurality of negative pressure holes are provided on the outer walls of the auxiliary pressure plate 50, the top plate 31, the first side plate 32, and the second side plate 33; the negative pressure holes are connected to a negative pressure device, and the negative pressure holes and the negative pressure device are not shown. The negative pressure device adsorbs the filter membrane 14 on the outer walls of the auxiliary pressure plate 50, the top plate 31, the first side plate 32, and the second side plate 33 through the negative pressure holes. The negative pressure device adopts the existing technology, and the negative pressure device draws air from the negative pressure holes, so that the filter membrane 14 fits with the outer walls of the auxiliary pressure plate 50, the top plate 31, the first side plate 32, and the second side plate 33.

[0097] In this embodiment, before the filter membrane 14 is put on the top support member 30, the driving mechanism 60 drives the four top support members 30 to shrink and the auxiliary pressure plate 50 to return to the inner side of the first side plate 32, and the overall volume is reduced. At this time, the inverted filter membrane 14 can be conveniently put on the outside of the auxiliary pressure plate 50 and the top support member 30. Then the driving device 40 drives the top support member 30 to move outward and the auxiliary pressure plate 50 to move outward, so that the filter membrane 14 is stretched out into a rectangular shape. Then the top support member 30 and the auxiliary pressure plate 50 perform negative pressure adsorption on the filter membrane 14 through the negative pressure hole. At the same time, the driving device 40 drives the top support member 30 and the auxiliary pressure plate 50 to withdraw, so that the volume of the filter membrane 14 in space is reduced. Then the reduced filter membrane 14 is moved into the mold cavity of the upper mold 10 or the lower mold 11 of the grouting mold. In this process, the filter membrane 14 will not contact the inner wall of the grouting mold due to its reduced volume, thus avoiding the situation where the filter membrane 14 is adhered to the inner wall of the grouting mold after contacting it, and then the filter membrane 14 continues to move and causes pulling deformation. In addition, in the process of the top support 30 retracting to reduce the volume of the filter membrane 14, the auxiliary pressure plate 50 also performs negative pressure adsorption on the filter membrane 14, so that the corresponding filter membrane 14 will not move outward, but only move inward, thereby ensuring that the volume of the filter membrane 14 must be reduced.

[0098] Finally, the driving device 40 drives the top support member 30 and the auxiliary pressure plate 50 to expand outward, and opens the filter membrane 14, so that the filter membrane 14 fits with the inner wall of the grouting mold.

[0099] In one embodiment, the driving device 40 includes a driving mechanism 60 and four linkage mechanisms 70 ; the linkage mechanisms 70 correspond to the supporting members 30 .

[0100] The linkage mechanism 70 includes a first support rod 71 , a first sleeve 72 , a first limit block 73 , a first connecting ring 74 , a second sleeve 75 and a first spring 76 .

[0101] The first support rod 71 is arranged on the frame 20. The first sleeve 72 is slidably mounted on the first support rod 71 along the center line direction thereof, and the ends of the first sleeve 72 are connected to the first side plate 32 and the second side plate 33 at the same time, and a first limiting window 721 is provided on the first sleeve 72. The first limiting block 73 is connected to the outer wall of the first support rod 71, and the first limiting block 73 can move in the first limiting window 721. The first connecting ring 74 is sleeved on the outside of the first sleeve 72. The second sleeve 75 is slidably mounted on the first support rod 71 along the center line direction thereof. The first spring 76 is sleeved on the outside of the first sleeve 72 and the first support rod 71, and the two ends of the first spring 76 are respectively connected to the second sleeve 75 and the first connecting ring 74. The driving mechanism 60 is used to drive the second sleeve 75 to slide.

[0102] In this embodiment, the driving mechanism 60 drives the second sleeve 75 to slide, and then drives the first sleeve 72 to slide on the first support rod 71 through the first spring 76, thereby driving the top support member 30 to extend outward and retreat. The first limit block 73 can limit the first sleeve 72 so that it does not separate from the first support rod 71.

[0103] In one embodiment, a mounting seat 34 is connected to the inner wall of the first side plate 32 , a support arm 35 is connected to the mounting seat 34 , the support arm 35 extends along the length direction of the first side plate 32 , and a stopper 36 is connected to the end of the support arm 35 away from the mounting seat 34 .

[0104] The linkage mechanism 70 further includes a sliding seat 77 , a first connecting member 78 , a second connecting member 79 , a second spring 80 and a positioning block 81 .

[0105] The sliding seat 77 is slidably arranged on the support arm 35, and the sliding seat 77 has a tendency to approach the stopper 36. There are two first connecting members 78, and the two connecting members are rotatably connected to the two ends of the sliding seat 77 respectively. There are two second connecting members 79, and the two second connecting members 79 are rotatably connected to the corresponding first connecting members 78 respectively, and one end of the connecting member away from the first connecting member 78 is fixedly connected to the inner side of the auxiliary pressure plate 50, and one of the second connecting members 79 (the one of the two second connecting members 79 away from the first side plate 32) can be against the stopper 36. There are more than one second spring 80, and the two ends of the second spring 80 are respectively connected to the auxiliary pressure plate 50 and the sliding seat 77. The positioning block 81 is connected to the sliding seat 77, and the end of the positioning block 81 away from the sliding seat 77 can be against the inner side of the auxiliary pressure plate 50;

[0106] When the second connecting member 79 abuts against the stopper 36, the end of the second spring 80 away from the sliding seat 77 tilts toward the first side plate 32, and the auxiliary pressure plate 50 is separated from the positioning block 81; when the second sleeve 75 approaches the first sleeve 72, the sliding seat 77 slides toward the stopper 36. Specifically, the first connecting member 78 is two rods, and the second connecting member 79 is a U-shaped member, where one end of the rod is rotatably connected to the sliding seat 77, and the other end of the rod is rotatably connected to the U-shaped member.

[0107] In this embodiment, when the second sleeve 75 pushes the first sleeve 72 to slide outward on the first support rod 71, the top support member 30 expands, and the sliding seat 77 slides toward the stopper 36. At this time, the auxiliary pressure plate 50 is close to the sliding seat 77 and abuts against the positioning block 81, and the second spring 80 is in a natural state. Until the second connecting member 79 abuts against the stopper 36, and the sliding seat 77 further approaches the stopper 36, the auxiliary pressure plate 50 is away from the positioning block 81, the second spring 80 is stretched, and the end of the second spring 80 away from the sliding seat 77 is tilted toward the first side plate 32. In this process, the auxiliary pressure plate 50 gradually moves away from the sliding seat 77, and the outer wall of the auxiliary pressure plate 50 gradually becomes flush with the outer wall of the first side plate 32.

[0108] In one embodiment, a mounting groove 351 is formed on the support arm 35 along its length direction, and a clearance hole is formed at one end of the mounting groove 351 .

[0109] The linkage mechanism 70 further includes a sliding column 82 , a third spring 83 , a fixed pulley 84 and a pull rope 85 .

[0110] The sliding column 82 is slidably disposed in the mounting groove 351 and is fixedly connected to the sliding seat 77. The third spring 83 is disposed in the mounting groove 351, the third spring 83 is coaxial with the sliding column 82, the two ends of the third spring 83 are respectively against the sliding column 82 and the side wall of the mounting groove 351, and the third spring 83 is a compression spring. The fixed pulley 84 is disposed on the mounting seat 34. One end of the pull rope 85 is connected to the sliding column 82, and the other end of the pull rope 85 passes through the third spring 83 and the clearance hole in sequence and bypasses the fixed pulley 84 before being connected to the second sleeve 75.

[0111] In this embodiment, under the action of the third spring 83 , the sliding seat 77 has a tendency to move toward the stopper 36 .

[0112] In one embodiment, the frame 20 includes a guide column 21 disposed vertically.

[0113] The driving mechanism 60 includes a driving disk 61 , an electric push rod 62 and four driving rods 63 .

[0114] The driving disk 61 is vertically slidably sleeved on the guide column 21 through the opening. The electric push rod 62 is arranged on the frame 20, and the output end of the electric push rod 62 is connected to the driving disk 61. Two electric push rods 62 can be arranged. One end of the driving rod 63 is connected to the driving disk 61, and the other end of the driving rod 63 is rotatably connected to the lower end of the corresponding second sleeve 75. The driving rod 63 is located in the projection of the corresponding first support rod 71 on the horizontal plane.

[0115] In this embodiment, under the push of the electric push rod 62, the driving plate 61 moves up and down, thereby driving the second sleeve 75 to slide on the support rod.

[0116] In one embodiment, one end of the driving rod 63 away from the driving disk 61 is connected to a trigger block 64 .

[0117] The linkage mechanism 70 further includes a limit frame 86 , an elastic rod 87 and a wedge block 88 .

[0118] The limit frame 86 is fixedly connected to the lower end of the second sleeve 75. One end of the elastic rod 87 is connected to the first connecting ring 74. The wedge block 88 is connected to the end of the elastic rod 87 away from the first connecting ring 74. When the limit frame 86 approaches the first connecting ring 74, the inclined surface of the wedge block 88 can abut against the inner wall of the lower side of the limit frame 86 and then move up temporarily and pass through the limit frame 86; the end of the wedge block 88 close to the connecting ring can abut against the limit frame 86 after passing through the limit frame 86; the trigger block 64 can abut against the lower end of the wedge block 88 after rotating with the driving rod 63, and can drive the wedge block 88 to move up.

[0119] In this embodiment, when the filter membrane 14 is sleeved outside the top support member 30, the second sleeve 75 slides outward, and the top support member 30 and the auxiliary pressure plate 50 both expand outward until the filter membrane 14 is opened. In this process, the first sleeve 72 moves outward for a distance and is limited by the first limit block 73 and cannot move further, while the second sleeve 75 continues to approach the first sleeve 72, so that the wedge block 88 at the end of the elastic rod 87 is inserted into the corresponding limit frame 86, and the first spring 76 is compressed.

[0120] Then the filter membrane 14 needs to be folded up so that it can be subsequently sent into the grouting mold. After that, the second sleeve 75 is withdrawn. Since the wedge block 88 is in the limit frame 86, the distance between the first sleeve 72 and the second sleeve 75 remains unchanged temporarily. Therefore, as the second sleeve 75 is withdrawn, the first sleeve 72 is also withdrawn, and the auxiliary pressure plate 50 is also withdrawn, which makes the filter membrane 14 be folded up. Until the trigger block 64 and the wedge block 88 are against each other, the first sleeve 72 is away from the second sleeve 75 under the action of the first spring 76. The subsequent top support member 30 drives the filter membrane 14 into the grouting mold and then expands to complete the coating action of the filter membrane 14 (that is, the filter membrane 14 is covered on the inner wall of the grouting mold).

[0121] In one embodiment, a second limiting block 22 is connected to the guide column 21 .

[0122] The driving mechanism 60 further includes a third sleeve 65 , a second connecting ring 66 and a fourth spring 67 .

[0123] The third sleeve 65 is vertically slidably sleeved on the guide column 21, and its upper end is connected to the four first support rods 71. A second limit window 651 is opened on it, and the second limit block 22 is located in the second window. The second connecting ring 66 is sleeved on the outside of the third sleeve 65. The two ends of the fourth spring 67 are respectively connected to the second connecting ring 66 and the driving disk 61.

[0124] In this embodiment, driven by the electric push rod 62, the driving disc 61 moves up and down, thereby driving the third sleeve 65 to move up and down through the fourth spring 67. Specifically, when the driving disc 61 moves up, the second sleeve 75 slides on the first support rod 71, thereby driving the top support member 30 and the auxiliary pressure plate 50 to expand outward. At the same time, the third sleeve 65 also drives the first support rod 71 to move up into the inverted grouting mold, so that the top support member 30 and the auxiliary pressure plate 50 gradually open the filter membrane 14, and the filter membrane 14 also moves up to the predetermined position in the grouting mold, thereby improving efficiency.

[0125] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A ceramic slip casting mold coating device, characterized in that: include: A frame (20) on which an inverted grouting mold upper mold (10) or lower mold (11) can be arranged; Four supporting members (30) are provided and are movably arranged on the frame (20), and the four supporting members (30) are used to open the filter membrane (14) from the inside and to press the four corners of the filter membrane (14) against the four corners of the inner cavity of the upper mold (10) or the lower mold (11) of the grouting mold; and A driving device (40) is used to drive the supporting member (30) to move closer to or farther from the four corners of the inner cavity of the upper mold (10) or the lower mold (11) of the grouting mold; The top support member (30) comprises: The top plate (31) has a triangular upper end surface, which can drive the filter membrane (14) to abut against the bottom surface of the upper mold (10) or the lower mold (11) of the grouting mold; A first side plate (32), the upper end of which is connected to the top plate (31), and can drive the filter membrane (14) to abut against the inner wall of the upper mold (10) or the lower mold (11) of the grouting mold; and The second side plate (33) is connected to the top plate (31) at its upper end and can drive the filter membrane (14) to abut against the inner wall of the upper mold (10) or the lower mold (11) of the grouting mold.

2. A ceramic slip casting mold coating device as claimed in claim 1, characterized in that: Also includes: Four auxiliary pressure plates (50), each of the auxiliary pressure plates (50) being movably arranged on the corresponding first side plate (32), and the outer end surface of the auxiliary pressure plate (50) being parallel to the outer side surface of the first side plate (32) after the auxiliary pressure plate (50) moves outward; The driving device (40) is also used to drive the auxiliary pressure plate (50) to move.

3. A ceramic slip casting mold coating device as claimed in claim 2, characterized in that: The outer walls of the auxiliary pressure plate (50), the top plate (31), the first side plate (32) and the second side plate (33) can perform negative pressure adsorption on the filter membrane (14).

4. A ceramic slip casting mold coating device as claimed in claim 3, characterized in that: The driving device (40) comprises a driving mechanism (60) and four linkage mechanisms (70); the linkage mechanisms (70) correspond to the supporting members (30); The linkage mechanism (70) comprises: A first support rod (71) is arranged on the frame (20); A first sleeve (72) is slidably sleeved on the first support rod (71) along the center line direction thereof, the end of the first sleeve (72) is simultaneously connected to the first side plate (32) and the second side plate (33), and a first limiting window (721) is provided on the first sleeve (72); A first limiting block (73), the first limiting block (73) being connected to the outer wall of the first supporting rod (71), and the first limiting block (73) being movable within the first limiting window (721); A first connecting ring (74) sleeved on the outside of the first sleeve (72); A second sleeve (75) is slidably sleeved on the first support rod (71) along the center line direction thereof; and A first spring (76) is sleeved outside the first sleeve (72) and the first support rod (71), and two ends of the first spring (76) are respectively connected to the second sleeve (75) and the first connecting ring (74); The driving mechanism (60) is used to drive the second sleeve (75) to slide.

5. A ceramic slip casting mold coating device as claimed in claim 4, characterized in that: A mounting seat (34) is connected to the inner wall of the first side plate (32); a support arm (35) is connected to the mounting seat (34); the support arm (35) extends along the length direction of the first side plate (32); a stopper (36) is connected to the end of the support arm (35) away from the mounting seat (34); The linkage mechanism (70) further comprises: A sliding seat (77) is slidably disposed on the support arm (35), and the sliding seat (77) has a tendency to approach the stopper (36); There are two first connecting members (78), and the two connecting members are rotatably connected to two ends of the sliding seat (77) respectively; Two second connecting members (79) are provided, and are rotatably connected to the corresponding first connecting members (78) respectively, and one end of the connecting member away from the first connecting member (78) is fixedly connected to the auxiliary pressure plate (50), and one of the second connecting members (79) can abut against the stopper (36); At least one second spring (80) is provided, and both ends of the second spring (80) are respectively connected to the auxiliary pressure plate (50) and the sliding seat (77); and A positioning block (81) connected to the sliding seat (77), wherein one end of the positioning block (81) away from the sliding seat (77) can abut against the inner side of the auxiliary pressure plate (50); When the second connecting member (79) abuts against the stop block (36), the end of the second spring (80) away from the sliding seat (77) tilts toward the first side plate (32), and the auxiliary pressure plate (50) is separated from the positioning block (81); when the second sleeve (75) approaches the first sleeve (72), the sliding seat (77) slides toward the stop block (36).

6. A ceramic slip casting mold coating device as claimed in claim 5, characterized in that: The support arm (35) is provided with a mounting groove (351) along its length direction; one end of the mounting groove (351) is provided with a clearance hole; The linkage mechanism (70) further comprises: A sliding column (82) is slidably disposed in the mounting groove (351) and fixedly connected to the sliding seat (77); A third spring (83) is arranged in the installation groove (351), the third spring (83) is coaxial with the sliding column (82), and two ends of the third spring (83) are respectively against the sliding column (82) and the side wall of the installation groove (351); a fixed pulley (84) disposed on the mounting seat (34); and A pull rope (85) has one end connected to the sliding column (82), and the other end passes through the third spring (83) and the clearance hole in sequence and around the fixed pulley (84) before being connected to the second sleeve (75).

7. A ceramic slip casting mold coating device according to any one of claim 6, characterized in that: The frame (20) comprises a guide column (21) arranged vertically; The driving mechanism (60) comprises: A driving plate (61) is vertically slidably sleeved on the guide column (21) through the opening; An electric push rod (62) is arranged on the frame (20), and its output end is connected to the driving disk (61); and Four driving rods (63), one end of each driving rod (63) is connected to the driving disk (61), and the other end of each driving rod (63) is rotatably connected to the lower end of the corresponding second sleeve (75); The driving rod (63) is located within the projection of the corresponding first supporting rod (71) on the horizontal plane.

8. A ceramic slip casting mold coating device as claimed in claim 7, characterized in that: One end of the driving rod (63) away from the driving disk (61) is connected to a trigger block (64); The linkage mechanism (70) further comprises: A limiting frame (86) fixedly connected to the lower end of the second sleeve (75); an elastic rod (87), one end of which is connected to the first connecting ring (74); and a wedge-shaped block (88) connected to an end of the elastic rod (87) away from the first connecting ring (74); When the limit frame (86) approaches the first connecting ring (74), the inclined surface of the wedge block (88) can abut against the inner wall of the lower side of the limit frame (86) and then move upward briefly and pass through the limit frame (86); the end of the wedge block (88) close to the connecting ring can abut against the limit frame (86) after passing through the limit frame (86); the trigger block (64) can abut against the lower end of the wedge block (88) after following the rotation of the driving rod (63), and can drive the wedge block (88) to move upward.

9. A ceramic slip casting mold coating device as claimed in claim 8, characterized in that: The guide column (21) is connected to a second limiting block (22); The driving mechanism (60) further comprises: A third sleeve (65) is vertically slidably sleeved on the guide column (21), the upper end of which is connected to the four first support rods (71), a second limiting window (651) is formed on the third sleeve, and the second limiting block (22) is located in the second window; A second connecting ring (66) is sleeved outside the third sleeve (65); and The fourth spring (67) has two ends connected to the second connecting ring (66) and the driving disk (61) respectively.

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