CN224012643U - A ceramic blank anti-sticking demolding device - Google Patents

Abstract

This utility model belongs to the technical field of ceramic production equipment and discloses a ceramic blank anti-sticking demolding device, including a frame, a lower mold on the frame, an upper mold above the lower mold, a hydraulic cylinder connected to the top of the upper mold, the hydraulic cylinder being mounted on the frame, the lower mold including a base plate, side plates around the base plate, a displacement component installed on the frame corresponding to the side plates, and an auxiliary demolding component at the bottom of the base plate. The displacement component enables the synchronous and smooth opening and closing of the two side plates of the lower mold, avoiding hard friction between the side plates and the blank due to displacement misalignment, reducing the probability of surface defects such as scratches and flaking of the blank. The auxiliary demolding component not only allows the blank to be pre-decoupled from the inner wall of the upper mold, but also forms an isolation support to prevent the blank from sticking and pulling on the upper mold when the upper and lower molds are separated.

Description

Antiseized membrane shedder of ceramic body

Technical Field

The utility model belongs to the technical field of ceramic production equipment, and particularly relates to an anti-sticking film demolding device for a ceramic blank.

Background

In the large-scale production process of ceramic products, the plastic pug which is pretreated by pugging, ageing and the like is conveyed to a forming station, is precisely injected into a special die through hydraulic or mechanical pressing equipment, and is shaped by preset pressure and dwell time to form a ceramic body with loose structure and lower strength, which is a core component of a green body stage, and then the ceramic body can be finally formed into a ceramic finished product with service performance through a plurality of procedures such as drying, dehydration, surface glazing, high-temperature sintering and the like. The demolding process is performed immediately after the blank is molded, at the moment, the blank is not cured, the deformation resistance and breakage resistance of the blank are extremely weak, and the pressing fit degree with the inner wall of the die is high, so that the process is not only a key node for connecting the blank molding process and the subsequent processing flow, but also has the operation effect of being more directly related to whether the blank has the defects of cracking, unfilled corner, surface adhesion breakage and the like, and has important influence on the smooth promotion of the subsequent process and the yield of the final ceramic product.

The chinese patent of application number 202420308621.5 discloses a ceramic blank suppression device, including the press forming organism, the shaping groove has been fixedly seted up to press forming organism right side front end, shaping inslot portion bottom fixedly connected with processing platform, top backup pad below just is located and is equipped with the fly leaf between the spacing stand, both sides all fixedly connected with contact sensor around the fly leaf top, fly leaf bottom fixedly connected with stamping workpiece, processing platform top just is located fixedly connected with bed die between the spacing stand, bed die right side fixedly connected with PLC controller, the inside pressure receiving plate that is equipped with of bed die, the pressure receiving plate bottom is equipped with from demoulding mechanism, through the self demoulding mechanism that sets up, actuating cylinder, contact sensor, driving motor and PLC controller cooperation use, can carry out automatic drawing of patterns to the ceramic that presses, do not need the manual work to take out the ceramic, reduce workman's work load, avoid the ceramic to appear damaging.

However, the ceramic blank pressing device has obvious limitations in practical application, namely, firstly, hard friction is generated between the ceramic blank and the inner wall of the lower die in the demolding process, and the blank is in a green state with extremely low strength, so that the friction is easy to cause appearance defects such as surface scratch, partial slag drop and the like of the blank, secondly, in the separation stage of the upper die and the lower die, the blank is always adhered to the inner wall of the upper die due to close adhesion during pressing, and the blank is easy to be pulled, deformed and even broken in the separation process, so that the structural integrity of the blank is damaged, and the smooth promotion of subsequent procedures and the yield of a final product are directly influenced.

Therefore, a release film demolding device for ceramic blanks is provided for solving the problems.

Disclosure of utility model

In order to solve the problems in the background technology, the utility model provides the anti-sticking film demolding device for the ceramic green body, which has the advantages of synchronously and stably opening and closing the mold, isolating an air gap, preventing adhesion, reducing damage to the green body, guaranteeing the integrity of the structure and further improving the demolding efficiency and the yield.

The utility model provides a ceramic blank anti-sticking film demolding device, which comprises a rack, wherein a lower mold is arranged on the rack, an upper mold is arranged above the lower mold, the top of the upper mold is connected with a hydraulic cylinder, and the hydraulic cylinder is arranged on the rack;

The lower die comprises a bottom plate, and side plates are arranged around the bottom plate;

A displacement assembly is arranged at a position on the frame corresponding to the side plate, and an auxiliary demoulding assembly is arranged at the bottom of the bottom plate;

The auxiliary demoulding assembly comprises a groove formed in the top of the bottom plate, a sealing plate is attached to the inner wall of the groove in a sliding mode, a small cylinder is connected to the bottom of the sealing plate, an L-shaped air flow channel is formed in the side wall of the groove, and is connected with an air flow pipe connected with an external air source.

Preferably, the frame comprises a bottom frame, the displacement assembly is arranged on the bottom frame, the top of the bottom frame is connected with a top frame through a supporting rod, the hydraulic cylinder is arranged on the top frame, and the bottom of the bottom frame is connected with a supporting frame.

Preferably, the displacement subassembly includes the movable rod of fixed connection curb plate, the one end fixedly connected with displacement pole of curb plate is kept away from to the movable rod, the bottom fixedly connected with displacement piece of displacement pole is connected with between two displacement pieces on the same horizontal direction and corresponds lead screw and the guide bar that set up, the lead screw surface is provided with the screw thread opposite in the screw thread direction that the symmetry set up, the guide bar runs through the displacement pole, the one end of lead screw is connected with driving motor.

Preferably, a strip-shaped through groove is formed in the position, corresponding to the displacement rod, on the underframe, and the inner wall of the strip-shaped through groove is in sliding fit with the displacement rod.

Preferably, a fixed plate is arranged at a position on the underframe corresponding to the movable rod, and a sliding hole for the movable rod to pass through is formed in the fixed plate.

Preferably, the mounting plate is arranged at the position on the underframe corresponding to the screw rod and the guide rod, one end of the screw rod is connected with the corresponding mounting plate through a bearing, the other end of the screw rod penetrates through the corresponding mounting plate to be connected with the driving motor, and the two ends of the guide rod are fixedly connected with the corresponding mounting plates.

Preferably, the L-shaped airflow channel is communicated with the groove when the sealing plate is at the lowest position of the groove, and the L-shaped airflow channel is blocked when the sealing plate is at the highest position in the groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the utility model, the displacement assembly drives the screw rod with symmetrical reverse threads on the outer surface to rotate through the driving motor, and the multiple limit guiding of the guide rod, the sliding hole of the fixed plate and the strip-shaped through groove of the underframe is matched, so that the synchronous and stable opening and closing of the two side plates of the lower die are realized, the displacement dislocation of the side plates and the hard friction of a blank body are avoided, meanwhile, the automatic opening and closing of the side plates replaces the traditional manual operation, the touch damage of the manual intervention on the blank body is reduced, and the occurrence probability of appearance defects such as surface scratch and slag drop of the blank body is further reduced from the aspect of operation;

2. The auxiliary demoulding assembly disclosed by the utility model has the advantages that before the upper mould and the lower mould are separated, the sealing plate is controlled to move downwards through the small cylinder, the L-shaped air flow channel is communicated with the groove, an air gap is uniformly formed between the blank body and the bottom plate of the lower mould by air conveyed by an external air source, the air gap can not only enable the blank body and the inner wall of the upper mould to be separated from each other in advance and be in a close fit state, but also form an isolation support, the blank body and the upper mould are prevented from being adhered and pulled during the separation of the upper mould and the lower mould, the problems of easy deformation and breakage of the blank body are effectively solved, the structural integrity of the blank body is ensured, and a solid foundation is laid for smooth promotion and yield improvement of subsequent procedures.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a displacement assembly according to the present utility model;

FIG. 3 is a schematic view of the chassis of the present utility model;

FIG. 4 is a schematic view of the structure of the lower mold of the present utility model;

fig. 5 is a schematic view of the structure of the auxiliary stripping assembly of the present utility model.

In the figure, 1, a frame, 101, a bottom frame, 102, a supporting rod, 103, a top frame, 104 and a supporting frame;

2. the lower die comprises a lower die, a bottom plate, a 202 and a side plate;

3. The upper die, 4, the hydraulic cylinder;

5. The device comprises a displacement assembly, a movable rod, a displacement block, a 504, a screw rod, a 505, a guide rod, a 506, a driving motor, a 507, a strip-shaped through slot, a 508, a fixed plate, a 509, a sliding hole, a 510 and a mounting plate;

6. Auxiliary demoulding component 601, groove 602, sealing plate 603, small cylinder 604, L-shaped air flow channel 605 and air flow pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 5, the utility model provides a ceramic blank anti-sticking film demolding device, which comprises a frame 1, wherein a lower mold 2 is arranged on the frame 1, an upper mold 3 is arranged above the lower mold 2, the top of the upper mold 3 is connected with a hydraulic cylinder 4, the hydraulic cylinder 4 is arranged on the frame 1, and the upper mold 3 can be driven to stably lift, so that accurate mold closing and mold opening are realized, and blank molding defects caused by mold closing deviation are avoided;

The lower die 2 comprises a bottom plate 201, side plates 202 are arranged around the bottom plate 201, the bottom plate 201 and the side plates 202 are enclosed to form a green body forming cavity, and the regularity of the green body after forming is ensured;

The displacement assembly 5 is arranged at the position, corresponding to the side plate 202, on the frame 1, and can drive the side plate 202 to open and close synchronously, so that friction damage between the side plate 202 and a blank body during demolding is reduced, and the bottom of the bottom plate 201 is provided with the auxiliary demolding assembly 6, so that the blank body is subjected to anti-sticking and efficient demolding through air flow isolation and pushing cooperation;

The auxiliary demoulding assembly 6 comprises a groove 601 formed in the top of the bottom plate 201, the groove 601 provides space for movement of a sealing plate and airflow circulation, the inner wall of the groove 601 is in sliding fit with the sealing plate 602, the bottom of the sealing plate 602 is connected with a small cylinder 603, the small cylinder 603 can accurately control the lifting of the sealing plate 602, on-off switching of an airflow channel is achieved, an L-shaped airflow channel 604 is formed in the side wall of the groove 601, the L-shaped airflow channel 604 can uniformly guide air to the bottom of a blank, the groove 601 is connected with an airflow pipe 605, and the airflow pipe 605 is connected with an external air source to provide stable airflow for demoulding.

Specifically, frame 1 includes chassis 101, and displacement subassembly 5 locates on the chassis 101, provides firm installation basis for the displacement subassembly, and the top of chassis 101 is connected with roof-rack 103 through bracing piece 102, and bracing piece 102 ensures the bearing strength of roof-rack 103, and hydraulic cylinder 4 locates on roof-rack 103, and the bottom of chassis 101 is connected with support frame 104, and support frame 104 can promote device overall stability, produces when avoiding pressing and drawing of patterns and rocks.

Further, the displacement assembly 5 comprises a movable rod 501 fixedly connected with the side plate 202, the movable rod 501 can drive the side plate 202 to synchronously displace, one end of the movable rod 501 away from the side plate 202 is fixedly connected with a displacement rod 502, the bottom end of the displacement rod 502 is fixedly connected with a displacement block 503, a screw rod 504 and a guide rod 505 which are correspondingly arranged are connected between the two displacement blocks 503 on the same horizontal direction, threads with opposite thread directions and symmetrically arranged are arranged on the outer surface of the screw rod 504, the two displacement blocks 503 can be driven to synchronously move in opposite directions or opposite directions, the guide rod 505 penetrates through the displacement rod 502 to play a limiting and guiding role, the displacement rod 502 is prevented from deflecting, one end of the screw rod 504 is connected with a driving motor 506, and stable power is provided for opening and closing the side plate 202.

Still further, a strip-shaped through groove 507 is formed in the position, corresponding to the displacement rod 502, on the chassis 101, and the inner wall of the strip-shaped through groove 507 is in sliding fit with the displacement rod 502, so that a sliding track is provided for the displacement rod 502, and the motion stability of the displacement rod is guaranteed.

It should be noted that, a fixed plate 508 is disposed at a position on the chassis 101 corresponding to the movable rod 501, a sliding hole 509 through which the movable rod 501 passes is formed in the fixed plate 508, the sliding hole 509 can radially limit the movable rod 501, so as to prevent the movable rod 501 from shaking to cause the side plate 202 to deviate, and improve the accuracy of opening and closing the side plate 202.

It is worth noting that, the mounting plate 510 is disposed at a position on the chassis 101 corresponding to the screw rod 504 and the guide rod 505, one end of the screw rod 504 is connected with the corresponding mounting plate 510 through a bearing, friction force during rotation of the screw rod 504 is reduced, smooth rotation is ensured, the other end of the screw rod runs through the corresponding mounting plate 510 and is connected with the driving motor 506, two ends of the guide rod 505 are fixedly connected with the corresponding mounting plate 510, and the mounting plate 510 provides stable support for the screw rod 504 and the guide rod 505.

It is worth introducing that, L type air current passageway 604 intercommunication recess 601 when closing plate 602 is in recess 601's the most lower position, can form the air gap to the body bottom conveying gas, realizes antiseized drawing of patterns, and L type air current passageway 604 is blocked when closing plate 602 is in recess 601's the most upper position, and mud material gets into the air current passageway and causes the jam when avoiding the body shaping, and closing plate 602 top and bottom plate 201 top surface parallel and level simultaneously, guarantee that the body bottom shaping is level.

Meanwhile, the utility model also comprises a power supply, a controller, a switch and the like, which are not main technical points of the patent and are not repeated.

The working principle and the process are that firstly, the hydraulic cylinder 4 drives the upper die 3 to move downwards to be matched with the lower die 2, at the moment, the small cylinder 603 of the auxiliary demoulding assembly 6 drives the sealing plate 602 to move upwards to the uppermost part of the groove 601 to seal the L-shaped airflow channel 604, so as to prevent mud from entering the channel, then the pretreated mud is injected into a forming cavity surrounded by the bottom plate 201 and the side plate 202, the blank is formed through preset pressure and pressure maintaining time, after the forming, the hydraulic cylinder 4 drives the upper die 3 to slightly move upwards, meanwhile, the small cylinder 603 drives the sealing plate 602 to move downwards to the lowest part of the groove 601, so that the L-shaped airflow channel 604 is communicated with the groove 601, an external air source conveys air to the bottom of the blank through the air flow pipe 605 and the L-shaped airflow channel 604, an air gap is formed, the driving motor 506 of the displacement assembly 5 is started again, the screw rod 504 is driven to rotate, the displacement block 503 and the displacement rod 502 are driven to move back to each other by symmetrically opposite threads on the screw rod 504, the displacement rod 502 slides along the strip-shaped through groove 507 of the bottom plate 101, the side plate 202 is synchronously opened outwards through the movable rod 501, the movable rod 508 moves the stationary plate 509, the stationary plate 508 moves along the stationary plate 509, finally, the blank is driven by the movable rod 508 to slightly slide downwards, the blank 602, and the small cylinder is completely slides down, and is completely, the blank 602 is completely separated from the bottom by the air gap, and the small cylinder 602 is completely matched with the air gap, and the blank is completely and completely separated from the bottom by the air cylinder, and the air gap is completely and completely separated from the air cylinder 2.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The anti-sticking film demolding device for the ceramic green body comprises a rack (1) and is characterized in that a lower mold (2) is arranged on the rack (1), an upper mold (3) is arranged above the lower mold (2), the top of the upper mold (3) is connected with a hydraulic cylinder (4), and the hydraulic cylinder (4) is arranged on the rack (1);

The lower die (2) comprises a bottom plate (201), and side plates (202) are arranged around the bottom plate (201);

a displacement assembly (5) is arranged at a position, corresponding to the side plate (202), on the frame (1), and an auxiliary demoulding assembly (6) is arranged at the bottom of the bottom plate (201);

The auxiliary demoulding assembly (6) comprises a groove (601) formed in the top of the bottom plate (201), a sealing plate (602) is attached to the inner wall of the groove (601) in a sliding mode, a small-sized air cylinder (603) is connected to the bottom of the sealing plate (602), an L-shaped air flow channel (604) is formed in the side wall of the groove (601), an air flow pipe (605) is connected to the L-shaped air flow channel (604), and an external air source is connected to the air flow pipe (605).

2. The anti-sticking film demolding device for ceramic green bodies, as set forth in claim 1, characterized in that the frame (1) comprises a bottom frame (101), the displacement assembly (5) is arranged on the bottom frame (101), the top of the bottom frame (101) is connected with a top frame (103) through a supporting rod (102), the hydraulic cylinder (4) is arranged on the top frame (103), and the bottom of the bottom frame (101) is connected with a supporting frame (104).

3. The anti-sticking film demolding device for ceramic blanks is characterized in that the displacement assembly (5) comprises a movable rod (501) fixedly connected with a side plate (202), one end, far away from the side plate (202), of the movable rod (501) is fixedly connected with a displacement rod (502), the bottom end of the displacement rod (502) is fixedly connected with a displacement block (503), a screw rod (504) and a guide rod (505) which are correspondingly arranged are connected between the two displacement blocks (503) on the same horizontal direction, threads with opposite thread directions and symmetrically arranged are arranged on the outer surface of the screw rod (504), the guide rod (505) penetrates through the displacement rod (502), and one end of the screw rod (504) is connected with a driving motor (506).

4. The release film demolding device for ceramic green bodies, as set forth in claim 3, is characterized in that a strip-shaped through groove (507) is formed in a position, corresponding to the displacement rod (502), on the bottom frame (101), and the inner wall of the strip-shaped through groove (507) is in sliding fit with the displacement rod (502).

5. The release film demolding device for ceramic green bodies according to claim 3, wherein a fixed plate (508) is arranged at a position on the underframe (101) corresponding to the movable rod (501), and a sliding hole (509) for the movable rod (501) to pass through is formed in the fixed plate (508).

6. The anti-sticking film demolding device for ceramic green bodies, as set forth in claim 3, characterized in that the mounting plate (510) is arranged on the underframe (101) at a position corresponding to the screw rod (504) and the guide rod (505), one end of the screw rod (504) is connected with the corresponding mounting plate (510) through a bearing, the other end of the screw rod penetrates through the corresponding mounting plate (510) to be connected with the driving motor (506), and two ends of the guide rod (505) are fixedly connected with the corresponding mounting plate (510).

7. The release device for the anti-sticking film of the ceramic body according to claim 1, wherein the L-shaped air flow channel (604) is communicated with the groove (601) when the sealing plate (602) is positioned at the lowest position of the groove (601), and the L-shaped air flow channel (604) is blocked when the sealing plate (602) is positioned at the uppermost position in the groove (601).