Blank pulling device for ceramic preparation and working method of blank pulling device

Abstract

The invention discloses a blank pulling device for ceramic preparation and a working method of the blank pulling device. The blank pulling device comprises a blank pulling rotary table, an outer pulling mechanism and an inner pulling mechanism. The outward pulling mechanism is arranged at the side end of the blank pulling rotary table and comprises a blank pulling block made of a soft and hard conversion material, a shape adjusting assembly is arranged at the end, away from the blank pulling rotary table, of the blank pulling block, and the outward pulling mechanism further comprises a moving assembly; the inner pulling mechanism is arranged at the upper end of the blank pulling rotating disc and comprises an inner pulling head, a telescopic assembly connected with the inner pulling head and used for controlling the inner pulling head to move transversely and a lifting air cylinder used for controlling the inner pulling head to ascend and descend, the blank pulling block is made of a soft and hard conversion material, and the shape adjusting assembly is used for adjusting the shape of the blank pulling block and conducting flexible adjustment according to the shape of prepared ceramic. The adaptability of the device is greatly improved, meanwhile, the shape of the blank pulling block can be adjusted when the blank pulling block is soft, the blank pulling block is adjusted to be hard during blank pulling, the shape is convenient to adjust, and meanwhile the stability of the hardness is guaranteed in the blank pulling process.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic preparation equipment, and in particular to a embryo pulling device for ceramic preparation and a working method thereof. Background Art

[0002] The embryo pulling process in ceramic craftsmanship is a key step in making clay into an embryo, which involves shaping and forming the clay. Traditional embryo pulling methods usually rely on manual operation and experience and skills. The manual embryo pulling process requires craftsmen to control the shape and thickness of the clay with rich experience. This process requires the shape and thickness of the embryo to be uniform, and the physical state of the clay needs to be finely adjusted to ensure the quality of the finished ceramic product.

[0003] However, manual operation not only has the problem of inconsistent process, but also it is difficult to adjust the state of the clay, especially when adjusting the softness and hardness of the clay, instability is prone to occur.

[0004] In view of the above problems, various automated embryo pulling devices have been developed in the prior art, but most of the existing automated embryo pulling devices use templates as the key components of the external pulling mechanism. Although the template design can improve the accuracy of the shape to a certain extent, this method lacks sufficient flexibility and is difficult to meet the needs of ceramic finished products with different shapes. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a embryo pulling device for ceramic preparation and a working method thereof, wherein the embryo pulling block is composed of a soft-hard conversion material, and a shape adjustment component is used to adjust the shape of the embryo pulling block, which can be flexibly adjusted according to the shape of the prepared ceramic, thereby greatly improving the adaptability of the device, and at the same time being able to adjust the shape of the embryo pulling block when it is soft, and adjust it to be hard during embryo pulling, which facilitates shape adjustment while ensuring stability during the embryo pulling process.

[0006] Technical solution:

[0007] A embryo pulling device for ceramic preparation, comprising an embryo pulling turntable, an external pulling mechanism, and an internal pulling mechanism;

[0008] The external pulling mechanism is arranged at the side end of the embryo pulling turntable, and the external pulling mechanism comprises an embryo pulling block made of a soft-hard conversion material, and an end of the embryo pulling block away from the embryo pulling turntable is provided with a shape adjusting component for adjusting the shape of the embryo pulling block, and the external pulling mechanism also comprises a moving component for adjusting the distance between the embryo pulling block and the center of the embryo pulling turntable;

[0009] The inner pulling mechanism is arranged at the upper end of the embryo pulling turntable, and the inner pulling mechanism includes an inner pulling head, a telescopic component connected to the inner pulling head for controlling the lateral movement of the inner pulling head, and a lifting cylinder for controlling the lifting of the inner pulling head.

[0010] Furthermore, the shape adjustment component includes a plurality of first cylinders connected to different positions of the billet pulling block, and the first cylinders are fixedly mounted on the moving seat.

[0011] Furthermore, the moving assembly includes a second cylinder and a plurality of first guide shafts, and the output shaft of the second cylinder is fixedly connected to the moving seat.

[0012] Furthermore, the embryo block is made of a material that can be converted between soft and hard according to humidity. The embryo block is soft in a dry state and becomes hard when exposed to water. The shape adjustment component also includes a drying device for drying and softening the embryo block.

[0013] Furthermore, the embryonic block is composed of cross-linked hydrogel.

[0014] Furthermore, the embryo block is made of a material that changes from soft to hard according to temperature. The embryo block is soft at a temperature higher than room temperature and becomes hard at room temperature. The shape adjustment component also includes a heating device for heating and softening the embryo block.

[0015] Furthermore, the billet pulling block is made of a thermoplastic elastomer or a thermo-deformable alloy or a polymer-based composite material.

[0016] Furthermore, the telescopic assembly includes a guide groove and a sliding rod with one end slidably connected in the guide groove, one end of the sliding rod is fixedly connected to the inner sliding head, and the other end is connected to a third cylinder for controlling its movement, and the guide groove is fixedly connected to the output end of the lifting cylinder.

[0017] Furthermore, the external pulling mechanism also includes a fourth cylinder for controlling the lifting and lowering of the pulled blank block.

[0018] The present invention also discloses a working method of a ceramics pulling device, comprising the following steps:

[0019] The following steps are involved:

[0020] S1. Prepare clay: Place the clay on a turning table, and determine the layering of the clay and the radius of each layer according to the dimensions of the ceramic handicraft to be made;

[0021] S2. Setting the external pulling mechanism: adjusting the extension amount of the corresponding first cylinder according to the calculated radius of each layer, so that the curve reached by the pulled embryo block is consistent with the outer curve of the embryo body to be formed;

[0022] S3. Setting the inner pull mechanism trajectory: According to the calculated radius of each layer, the motion trajectory of the inner pull head of the inner pull device is designed. The motion trajectory uses the telescopic component to control the lateral movement of the inner pull head, and uses the lifting cylinder to control the vertical movement of the inner pull head;

[0023] S4, placing the kneaded clay on the embryo pulling turntable, starting the embryo pulling turntable, starting the outer pulling mechanism to make the embryo pulling block contact with the clay surface, and at the same time driving the inner pulling head through the inner pulling mechanism to squeeze the clay, ensuring that the clay is gradually formed under the action of the outer pulling block and the inner pulling head.

[0024] Furthermore, the embryo block is composed of a material that converts between soft and hard according to humidity. The embryo block is soft in a dry state and becomes hard when exposed to water. The shape adjustment component also includes a drying device. In step S2, if the embryo block is in a dry and soft state, the extension amount of the corresponding first cylinder is directly adjusted to make the curve reached by the embryo block consistent with the outer curve of the embryo to be formed; if the embryo block is in a wet state, the embryo block is dried and softened by the drying device, and then the extension amount of the corresponding first cylinder is adjusted to make the curve reached by the embryo block consistent with the outer curve of the embryo to be formed; in step S4, the embryo block contacts the clay, and is affected by the water in the clay preparation, so that the embryo block becomes hard and maintains a stable state during the embryo drawing process.

[0025] Furthermore, the embryo block is made of a material that converts between soft and hard according to temperature. The embryo block is soft at a temperature higher than room temperature and becomes hard at room temperature. The shape adjustment component also includes a heating device. In step S2, the embryo block is heated and softened by the heating device, and then the extension amount of the corresponding first cylinder is adjusted so that the curve reached by the embryo block is consistent with the outer curve of the embryo body to be formed, and the cooling shape of the embryo block remains stable.

[0026] Beneficial effects: The embryo block of the present invention is composed of a soft-hard conversion material, and the shape adjustment component is used to adjust the shape of the embryo block. It can be flexibly adjusted according to the shape of the prepared ceramic, which greatly improves the adaptability of the device. At the same time, the shape of the embryo block can be adjusted when it is soft, and it can be adjusted to be hard during embryo drawing, which is convenient for shape adjustment and ensures stability during the embryo drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a stereogram of the present invention;

[0028] Figure 2 It is a partial enlarged view of the external pulling mechanism of the present invention;

[0029] Figure 3 It is a partial enlarged view of the inner pulling mechanism of the present invention;

[0030] Figure 4 is a schematic diagram of a drying device according to embodiment 1 of the present invention;

[0031] Figure 5 It is a schematic diagram of the heating device of Example 2 of the present invention. DETAILED DESCRIPTION

[0032] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] like Figure 1-4 As shown, a embryo pulling device for preparing ceramics comprises an embryo pulling turntable 1, an external pulling mechanism 2, and an internal pulling mechanism 3;

[0035] The external pulling mechanism 2 is arranged at the side end of the embryo pulling turntable 1, and the external pulling mechanism 2 includes an embryo pulling block 21 made of a soft-hard conversion material, and an end of the embryo pulling block 21 away from the embryo pulling turntable 1 is provided with a shape adjustment component 22 for adjusting the shape of the embryo pulling block 21, and the external pulling mechanism 2 also includes a moving component 23 for adjusting the distance between the embryo pulling block 21 and the center of the embryo pulling turntable 1;

[0036] The inner pulling mechanism 3 is arranged at the upper end of the embryo pulling turntable 1, and the inner pulling mechanism 2 includes an inner pulling head 31, a telescopic component 32 connected to the inner pulling head for controlling the lateral movement of the inner pulling head, and a lifting cylinder 33 for controlling the lifting of the inner pulling head.

[0037] The embryo pulling turntable 1 is driven to rotate by a motor, and a lifting mechanism, such as a cylinder, can also be arranged at the bottom.

[0038] In this embodiment, the shape adjusting component 22 includes a plurality of first cylinders 221 connected to different positions of the billet pulling block 21 , and the first cylinders 221 are fixedly mounted on a moving seat 222 .

[0039] In this embodiment, the moving assembly 23 includes a second cylinder 231 and a plurality of first guide shafts 232 , and the output shaft of the second cylinder 231 is fixedly connected to the moving seat 222 .

[0040] In this embodiment, the embryo block 21 is made of a material that can be converted from soft to hard according to humidity. The embryo block 21 is soft in a dry state and becomes hard when exposed to water. The shape adjustment component 22 also includes a drying device 223, which is used to dry and soften the embryo block 21. In the ceramic preparation process, there is a large amount of water in the clay itself, and the clay also needs to be sprayed during the embryo pulling process. Therefore, the embryo block 21 can always contact with water and remain moist during the embryo pulling process. It is in a hard state, will not deform, and has high stability. The drying device 223 is a hot air drying device, and the hot air outlet is staggered with the first cylinder 221.

[0041] In this embodiment, the green sheet 21 is made of cross-linked hydrogel. Hydrogels with a high degree of cross-linking usually expand less after absorbing water, or even almost do not expand during the water absorption process. This type of material can harden after contact with water while maintaining a stable size, thereby preventing the green sheet 21 from deforming and affecting the shape of the ceramic after forming.

[0042] In this embodiment, the telescopic assembly 32 includes a guide groove 321 and a slide rod 322 with one end slidably connected in the guide groove. One end of the slide rod 322 is fixedly connected to the inner slider 31, and the other end is connected to a third cylinder 323 for controlling its movement. The guide groove is fixedly connected to the output end of the lifting cylinder 33, which is used to control the lateral movement of the inner slider 31.

[0043] In this embodiment, the external pulling mechanism 2 further includes a fourth cylinder 24 for controlling the lifting and lowering of the pulled blank block 21 .

[0044] In this embodiment, the inner pulling mechanism 3 may also be provided with an angle adjustment mechanism for controlling the angle of the guide groove, thereby increasing the moving distance of the inner pulling block.

[0045] Example 2

[0046] like Figure 5 As shown, the embryo block 21 is made of a material that changes from soft to hard according to temperature. The embryo block 21 is soft at a temperature higher than room temperature and becomes hard at room temperature. The shape adjustment component 22 also includes a heating device 224 for heating and softening the embryo block 21. The heating device 224 in this embodiment has the same structure as the drying device 223 in Example 1. The hot air outlet and the first cylinder 221 are arranged alternately.

[0047] In this embodiment, the blank pulling block 21 is made of thermoplastic elastomer, thermo-deformable alloy or polymer-based composite material. These three materials can adjust the hardness when the temperature changes and have a small density change.

[0048] Thermoplastic elastomer (TPE) is a common thermodeformable material that becomes softer and more plastic when heated. For TPE, it usually becomes easier to stretch and mold within the following temperature range. The glass transition temperature (Tg) is approximately between -50℃ and 0℃. Below this temperature, TPE materials are hardened and brittle, making them difficult to stretch or mold. The softening temperature of TPE is usually between 70℃ and 110℃, depending on the type of TPE. For example, thermoplastic rubbers (such as SBS, SEBS, etc.) become softer and easier to stretch at 80℃ to 120℃. The tensile properties of TPE are usually best between 80℃ and 120℃. Within this temperature range, the material becomes soft, plastic, and easy to adjust its shape. If this temperature range is exceeded, TPE may begin to melt or degrade, resulting in the inability to maintain good moldability.

[0049] Heat-induced deformation alloys, especially shape memory alloys (such as nickel-titanium alloys or copper-based alloys), can be deformed and restored to a predetermined shape within a specific temperature range. The softening temperature of heat-induced deformation alloys is closely related to their phase transformation temperature (phase transformation temperature range). Heat-induced deformation alloys usually have two main phase transformation temperatures, namely: Martensite transformation start temperature (Ms): This is the temperature at which the alloy begins to transform from the martensite state to the austenite state, usually between 50°C and 150°C. Austenite transformation start temperature (As): This is the temperature at which the alloy completely transforms into the austenite state, usually between 70°C and 200°C. In this temperature range, the alloy will become soft and have a good shape memory effect, which can be used for recovery or deformation. If the heat-induced deformation alloy needs to be softened and easily stretched, the temperature usually needs to be higher than its martensite transformation start temperature (Ms). Between 80°C and 150°C is usually a more common softening range.

[0050] Polycarbonate (PC) is a common engineering plastic widely used in the manufacture of transparent plastic parts. PC has good thermal stability, but it becomes soft and has good processability at higher temperatures. Glass transition temperature (Tg): The glass transition temperature of polycarbonate is approximately between 145°C and 150°C. This means that below this temperature, PC behaves as a hard and brittle solid, and above this temperature, it becomes softer and has plasticity. Softening temperature (Tm): The softening temperature of polycarbonate is approximately between 225°C and 230°C. This is the temperature at which PC begins to show fluidity and becomes softened.

[0051] Polyurethane (PU) Polyurethane (PU) is a class of materials widely used in foams, elastomers, coatings and other fields. Depending on the specific chemical structure of the polyurethane (such as the ratio of hard segments to soft segments), its softening temperature will vary. Glass transition temperature (Tg): The glass transition temperature of polyurethane is usually between -30℃ and 40℃, which means that below this temperature, PU will behave as a hardened material. Softening temperature: The softening temperature of polyurethane is usually between 90℃ and 120℃. This depends on the molecular structure of the polyurethane and the ratio of hard segments to soft segments.

[0052] Example 3

[0053] The present invention also discloses a working method of a ceramics pulling device, comprising the following steps:

[0054] The following steps are involved:

[0055] S1. Prepare clay: Place the clay on a turning table, and determine the layering of the clay and the radius of each layer according to the dimensions of the ceramic handicraft to be made;

[0056] S2. Setting the external pulling mechanism: adjusting the extension amount of the corresponding first cylinder 221 according to the calculated radius of each layer, so that the curve reached by the pulling block 21 is consistent with the outer curve of the embryo to be formed;

[0057] S3. Setting the inner pull mechanism trajectory: According to the calculated radius of each layer, the movement trajectory of the inner pull head of the inner pull device is designed. The movement trajectory uses the telescopic component 32 to control the lateral movement of the inner pull head 31, and uses the lifting cylinder 33 to control the vertical movement of the inner pull head;

[0058] S4, placing the kneaded clay on the embryo pulling turntable, starting the embryo pulling turntable, starting the outer pulling mechanism 2 to make the embryo pulling block 21 contact with the clay surface, and at the same time driving the inner pulling head 31 through the inner pulling mechanism 3 to squeeze the clay, ensuring that the clay is gradually formed under the action of the outer pulling block and the inner pulling head.

[0059] In this embodiment, the embryo block 21 is made of a material that can be converted from soft to hard according to humidity. The embryo block 21 is soft in a dry state and becomes hard when exposed to water. The shape adjustment component 22 also includes a drying device 223. In step S2, if the embryo block 21 is in a dry and soft state, the extension amount of the corresponding first cylinder 221 is directly adjusted to make the curve reached by the embryo block 21 consistent with the outer curve of the embryo to be formed; if the embryo block 21 is in a wet state, the embryo block 21 is dried and softened by the drying device 223, and then the extension amount of the corresponding first cylinder 221 is adjusted to make the curve reached by the embryo block 21 consistent with the outer curve of the embryo to be formed; in step S4, the embryo block 21 contacts the clay, and is affected by the water in the clay preparation, so that the embryo block 21 becomes hard and maintains a stable state during the embryo drawing process.

[0060] Example 4

[0061] Compared with Example 3, the embryo block 21 is made of a material that converts from soft to hard according to temperature. The embryo block 21 is soft when it is higher than room temperature and becomes hard at room temperature. The shape adjustment component 22 also includes a heating device 224. In step S2, the embryo block 21 is heated and softened by the heating device 224, and then the extension amount of the corresponding first cylinder 221 is adjusted so that the curve reached by the embryo block 21 is consistent with the outer curve of the embryo body to be formed, and the cooling shape of the embryo block 21 remains stable.

[0062] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A ceramics pulling device, characterized in that: It comprises a embryo pulling turntable (1), an external pulling mechanism (2), and an internal pulling mechanism (3); The external pulling mechanism (2) is arranged at the side end of the embryo pulling turntable (1), and the external pulling mechanism (2) comprises an embryo pulling block (21) made of a soft-hard conversion material. An end of the embryo pulling block (21) away from the embryo pulling turntable (1) is provided with a shape adjustment component (22) for adjusting the shape of the embryo pulling block (21). The external pulling mechanism (2) also comprises a moving component (23) for adjusting the distance between the embryo pulling block (21) and the center of the embryo pulling turntable (1); The inner pulling mechanism (3) is arranged at the upper end of the embryo pulling turntable (1), and the inner pulling mechanism (2) comprises an inner pulling head (31), a telescopic component (32) connected to the inner pulling head and controlling the lateral movement of the inner pulling head, and a lifting cylinder (33) for controlling the lifting of the inner pulling head.

2. A ceramics pulling device according to claim 1, characterized in that: The shape adjustment component (22) comprises a plurality of first cylinders (221) connected to the blank pulling block (21) at different positions, and the first cylinders (221) are fixedly mounted on a movable seat (222).

3. A ceramics pulling device according to claim 1, characterized in that: The moving assembly (23) comprises a second cylinder (231) and a plurality of first guide shafts (232); the output shaft of the second cylinder (231) is fixedly connected to the moving seat (222).

4. A ceramics pulling device according to claim 1, characterized in that: The embryo block (21) is made of a material that changes from soft to hard according to humidity. The embryo block (21) is soft in a dry state and becomes hard when exposed to water. The shape adjustment component (22) further comprises a drying device (223) for drying and softening the embryo block (21).

5. A ceramics pulling device according to claim 1, characterized in that: The embryo block (21) is made of a material that changes from soft to hard according to temperature; the embryo block (21) is soft at a temperature higher than room temperature and becomes hard at room temperature; the shape adjustment component (22) further comprises a heating device (224) for heating the embryo block (21) to soften it.

6. A ceramics pulling device according to claim 1, characterized in that: The telescopic assembly (32) comprises a guide groove (321) and a slide rod (322) with one end slidably connected in the guide groove; one end of the slide rod (322) is fixedly connected to the inner pull head (31) and the other end is connected to a third cylinder (323) for controlling its movement; the guide groove is fixedly connected to the output end of the lifting cylinder (33).

7. A ceramics pulling device according to claim 1, characterized in that: The external pulling mechanism (2) further comprises a fourth cylinder (24) for controlling the lifting and lowering of the pulled blank block (21).

8. A working method of the embryo pulling device for preparing ceramics according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Prepare clay: Place the clay on a turning table, and determine the layering of the clay and the radius of each layer according to the dimensions of the ceramic handicraft to be made; S2, setting the external pulling mechanism: adjusting the extension amount of the corresponding first cylinder (221) according to the calculated radius of each layer, so that the curve reached by the pulling block (21) is consistent with the outer curve of the embryo to be formed; S3, setting the trajectory of the inner pull mechanism: according to the calculated radius of each layer, design the movement trajectory of the inner pull head of the inner pull device, the movement trajectory uses the telescopic component (32) to control the lateral movement of the inner pull head (31), and uses the lifting cylinder (33) to control the vertical movement of the inner pull head; S4, placing the kneaded clay on the embryo pulling turntable, starting the embryo pulling turntable, starting the outer pulling mechanism (2) to make the embryo pulling block (21) contact the surface of the clay, and at the same time driving the inner pulling head (31) to squeeze the clay through the inner pulling mechanism (3), so as to ensure that the clay is gradually formed under the action of the outer pulling block and the inner pulling head.

9. The working method of a ceramics pulling device according to claim 8, characterized in that: The embryo block (21) is made of a material that changes from soft to hard according to humidity. The embryo block (21) is soft in a dry state and becomes hard when exposed to water. The shape adjustment component (22) further comprises a drying device (223). In step S2, if the embryo block (21) is in a dry and soft state, the extension amount of the corresponding first cylinder (221) is directly adjusted so that the curve reached by the embryo block (21) is consistent with the outer curve of the embryo to be formed. If the embryo block (21) is in a wet state, the embryo block (21) is dried and softened by the drying device (223), and then the extension amount of the corresponding first cylinder (221) is adjusted so that the curve reached by the embryo block (21) is consistent with the outer curve of the embryo to be formed. In step S4, the embryo block (21) contacts the clay and is affected by the water in the clay preparation, so that the embryo block (21) becomes hard and maintains a stable state during the embryo drawing process.

10. The working method of a ceramics pulling device according to claim 8, characterized in that: The embryo block (21) is made of a material that changes from soft to hard according to temperature. The embryo block (21) is soft at a temperature higher than room temperature and becomes hard at room temperature. The shape adjustment component (22) further comprises a heating device (224). In step S2, the embryo block (21) is heated and softened by the heating device (224), and then the extension amount of the corresponding first cylinder (221) is adjusted so that the curve reached by the embryo block (21) is consistent with the outer curve of the embryo body to be formed, and the shape of the embryo block (21) to be cooled remains stable.

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