Prop for discharging glue

Abstract

The utility model relates to the technical field of ceramic product production, and discloses a tool for glue discharging, which comprises a first substrate and a second substrate which are stacked from bottom to top, first gas flow channels are uniformly distributed on first end surfaces and second end surfaces of the first substrate and the second substrate along a first direction at intervals, and second gas flow channels are uniformly distributed on second end surfaces of the first substrate and the second substrate along a second direction at intervals. Second gas flow channels are evenly distributed on the first end faces and the second end faces of the first base plate and the second base plate at intervals in the second direction, the first gas flow channels and the second gas flow channels are the same in depth and are arranged in a crossed mode, and vent holes are formed in the crossed positions of the first gas flow channels and the second gas flow channels. The glue discharging device has the beneficial effects that the upper surface of a product is shielded in the glue discharging process, impurities are prevented from being attached to the upper surface of the product, meanwhile, the temperature of the product is uniformly distributed in the glue discharging process, the product can be in contact with reducing gas, carbon impurity residues are avoided, the glue discharging effect is improved, and the yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic sheet production, in particular to a tool for removing glue. Background Art

[0002] Ceramic products are formed with a lot of organic binders and plasticizers, such as paraffin wax in hot die casting and polyvinyl alcohol in film rolling and cast film. During firing, a large amount of organic matter in the green body melts, decomposes, and volatilizes, which will cause the green body to deform and crack. At the same time, organic matter contains a lot of carbon. When there is insufficient oxygen to form a reducing atmosphere, it will affect the sintering quality. Therefore, it is necessary to remove the organic matter in the green body before firing to ensure the shape, size and quality requirements of the product. This process is called debinding.

[0003] In the prior art, the debinding tool is mostly a flat plate, which supports the product and performs heat treatment in a reducing atmosphere. Since there is no gas flow channel designed on the surface of the debinding tool, the tool fits the lower surface of the product completely without any gap, and the reducing gas cannot contact the lower surface of the product, resulting in uneven temperature distribution of the product during the debinding process, which easily leads to residual carbon impurities, poor debinding effect, and reduced product yield. At the same time, during the debinding process, the upper surface of the product is not blocked, and impurities are easy to fall on the upper surface of the product and attach, affecting product quality. Utility Model Content

[0004] The purpose of the utility model is to provide a debinding tool, which can shield the upper surface of the product during the debinding process to prevent impurities from adhering to the upper surface of the product. At the same time, the temperature of the product can be evenly distributed during the debinding process and can be in contact with the reducing gas to avoid residual carbon impurities, improve the debinding effect, and improve the yield rate.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a tool for removing glue, including a first substrate and a second substrate stacked from bottom to top, first gas flow channels are evenly distributed on the first end surface and the second end surface of the first substrate and the second substrate along the first direction, second gas flow channels are evenly distributed on the first end surface and the second end surface of the first substrate and the second substrate along the second direction, the first direction is perpendicular to the second direction, the first gas flow channel and the second gas flow channel have the same depth and are cross-arranged, a vent hole is provided at the intersection of the first gas flow channel and the second gas flow channel, the first gas flow channel and the second gas flow channel divide the first end surface and the second end surface of the first substrate to form a supporting portion.

[0006] Furthermore, the surface of the support product is in surface contact, line contact or point contact.

[0007] Furthermore, the width of the first gas flow channel is equal to the width of the second gas flow channel.

[0008] Furthermore, the diameter of the vent hole is less than or equal to the width of the first gas flow channel.

[0009] Furthermore, the width n of the first gas flow channel and the width N of the support portion satisfy n≤1 / 4N.

[0010] Furthermore, the depths of the first gas flow channel and the second gas flow channel are h, and the thickness of the first substrate is H, satisfying h≤1 / 3H.

[0011] Furthermore, guide posts are provided on the four peripheral corners of the first substrate, and guide sleeves having the same number as the guide posts are correspondingly provided on the four peripheral corners of the second substrate, and the guide posts can be inserted into the guide sleeves.

[0012] Furthermore, the support portion is a cuboid, a cylinder, a semi-cylinder, or a hemisphere.

[0013] Compared with the prior art, the debinding tool of the utility model embodiment has the following beneficial effects: it comprises a first substrate and a second substrate stacked up and down, the product is located between the first substrate and the second substrate during debinding, the first substrate supports the lower surface of the product, and the second substrate blocks the upper surface of the product to prevent impurities from falling on the upper surface of the product and adhering, in addition, a first gas flow channel and a second gas flow channel are provided on the first end surface and the second end surface of the first substrate and the second substrate, and an air vent is provided at the intersection of the first gas flow channel and the second gas flow channel, the reducing gas can fully contact with the surface of the product through the first gas flow channel, the second gas flow channel and the air vent, so that the temperature distribution of the product is uniform during the debinding process, carbon impurities are avoided, the debinding effect is improved, and the yield rate is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of Example 1 of the glue removal tool of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the first substrate of Example 1 of the adhesive removal tool of the utility model;

[0016] Figure 3 This is another structural schematic diagram of the first substrate of Example 1 of the adhesive removal tool of the utility model;

[0017] Figure 4 It is a structural schematic diagram of Example 2 of the glue removal tool of the utility model;

[0018] Figure 5 It is a structural schematic diagram of Example 3 of the glue removal tool of the utility model.

[0019] In the figure, 1, first substrate; 2, second substrate; 3, first gas flow channel; 4, second gas flow channel; 5, vent hole; 6, support part; 7, guide column; 8, guide sleeve; a, product. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. used in the present invention to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred devices and elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0023] Example 1

[0024] See also Figure 1 , Figure 2, a debinding tool according to a preferred embodiment of the utility model comprises a first substrate 1 and a second substrate 2 stacked from bottom to top. When the debinding process is being carried out, the product a is installed between the first substrate 1 and the second substrate 2. For the convenience of explanation, the upper end faces of the first substrate 1 and the second substrate 2 are defined as the first end faces, the lower end faces of the first substrate 1 and the second substrate 2 are defined as the second end faces, the length direction of the first substrate 1 is defined as the first direction, and the width direction of the first substrate 1 is defined as the second direction. Among them, the second end face of the second substrate 2 is in contact with the upper surface of the product a to block impurities from falling on the upper surface of the product a, and the first end face of the first substrate 1 is in contact with the lower surface of the product film to support the product a. In order to increase the contact area between the surface of the product a and the reducing gas and facilitate the discharge of impurities, the first gas flow channels 3 are evenly spaced on the first end faces and the second end faces of the first substrate 1 and the second substrate 2 along the first direction, and the second gas flow channels 4 are evenly spaced on the first end faces and the second end faces of the first substrate 1 and the second substrate 2 along the second direction. The first direction is perpendicular to the second direction. The depth of a gas channel 3 and a second gas channel 4 are the same and they are arranged crosswise. A vent hole 5 is provided at the intersection of the first gas channel 3 and the second gas channel 4 to facilitate the circulation of reducing gas between the first end face and the second end face of the first substrate 1, improve gas flow efficiency, make the surface of product a contact with the reducing gas, make the temperature distribution of product a uniform during the debinding process, and facilitate the removal of carbon impurities. In order to simplify the structure, the first substrate 1 and the second substrate 2 have the same structure. The first gas channel 3 and the second gas channel 4 divide the first end face and the second end face of the first substrate 1 to form a support portion 6. Similarly, the second substrate 2 is also designed in the same way. Only the structure of the first substrate 1 will be described later, and the structure of the second substrate 2 will not be repeated.

[0025] In some embodiments, in order to further improve the debinding effect, the contact area between the first substrate 1, the second substrate 2 and the surface of the product a is reduced, so that the contact area between the surface of the product a and the reducing gas can be increased. Therefore, in this embodiment, the contact between the support portion 6 and the surface of the product a is surface contact. Figure 2 The shape of the support portion 6 is a rectangular parallelepiped, preferably, see Figure 3 , the shape of the support portion 6 can be a cylinder.

[0026] Example 2

[0027] like Figure 4 As shown, this embodiment is a further improvement based on Embodiment 1, and its details are as follows:

[0028] The contact mode between the support portion 6 and the surface of the product a is changed to line contact, further reducing the contact area between the first substrate 1 and the surface of the product a, which is more conducive to the full contact between the reducing gas and the surface of the product a. Figure 4The support portion 6 is a semi-cylinder, and its axial direction is parallel to the first direction.

[0029] Example 3

[0030] like Figure 5 As shown, this embodiment is a further improvement based on Embodiment 2, and its details are as follows:

[0031] The contact mode between the support portion 6 and the surface of the product a is changed to point contact, which minimizes the contact area between the first substrate 1 and the surface of the product a, and is more conducive to the full contact between the reducing gas and the surface of the product a. Figure 5 , the shape of the support portion 6 is a hemispherical body.

[0032] In the above three embodiments, in order to make the reducing gas and temperature distribution uniform, the width of the first gas flow channel 3 is equal to the width of the second gas flow channel 4. In order to facilitate the processing of the vent 5 and avoid interference with the side walls of the first gas flow channel 3 and the second gas flow channel 4 during processing, the diameter of the vent 5 is less than or equal to the width of the first gas flow channel 3. At the same time, the debinding tool in this embodiment is mainly used for debinding support of thinner product a. If the width of the first gas flow channel 3 and the second gas flow channel 4 is too large, it is easy to cause the product a to be partially unsupported, resulting in local sagging, and the product a is prone to deformation, affecting the quality of product a. Therefore, let n be the width of the first gas flow channel 3, and the width of the support part 6 be N, which must satisfy n≤1 / 4N. Further, the width of the first gas flow channel 3 and the second gas flow channel 4 can be adjusted synchronously according to actual production needs and the outer dimensions of the first substrate 1 and the second substrate 2. The width of the first gas flow channel 3 and the second gas flow channel 4 ranges from 1mm to 100mm.

[0033] Furthermore, the depth of the first gas flow channel 3 and the second gas flow channel 4 is h, and the thickness of the first substrate 1 is H. In order to ensure that the first substrate 1 and the second substrate 2 have sufficient structural strength, h≤1 / 3H must be satisfied. Furthermore, after placing the product a on the first substrate 1, in order to facilitate the positioning of the second substrate 2 when it is placed, and to prevent the second substrate 2 from moving after installation and causing damage to the surface of the product a, refer to Figure 1 , guide posts 7 are provided at the four corners of the first substrate 1, and guide sleeves 8 having the same number as the guide posts 7 are provided at the four corners of the second substrate 2, and the guide posts 7 can be inserted into the guide sleeves 8. In this way, the installation and positioning between the first substrate 1 and the second substrate 2 are achieved. Furthermore, the number of guide posts 7 and the diameter of the guide posts 7 can be set according to actual design requirements, and the diameter of the guide posts 7 ranges from 1 mm to 100 mm.

[0034] In summary, the embodiment of the utility model provides a debinding tool, including a first substrate 1 and a second substrate 2 stacked up and down. Product a is located between the first substrate 1 and the second substrate 2 during debinding. The first substrate 1 supports the lower surface of product a, and the second substrate 2 blocks the upper surface of product a to prevent impurities from falling on the upper surface of product a and adhering. In addition, a first gas flow channel 3 and a second gas flow channel 4 are provided on the first end face and the second end face of the first substrate 1 and the second substrate 2, and a vent 5 is provided at the intersection of the first gas flow channel 3 and the second gas flow channel 4. The reducing gas can fully contact the surface of product a through the first gas flow channel 3, the second gas flow channel 4 and the vent 5, so that the temperature distribution of product a is uniform during the debinding process, carbon impurities are avoided, the debinding effect is improved, and the yield rate is improved.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. For example, the size, distribution and specific surface area of ​​the guide column 7 or the first gas flow channel 3 and the second gas flow channel 4 can be adjusted accordingly according to the size of the applicable product a. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A tool for removing glue, characterized by: It includes a first substrate and a second substrate stacked from bottom to top, first gas flow channels are evenly distributed along the first direction on the first end surface and the second end surface of the first substrate and the second substrate, second gas flow channels are evenly distributed along the second direction on the first end surface and the second end surface of the first substrate and the second substrate, the first direction is perpendicular to the second direction, the first gas flow channel and the second gas flow channel have the same depth and are cross-arranged, a vent hole is provided at the intersection of the first gas flow channel and the second gas flow channel, and the first gas flow channel and the second gas flow channel divide the first end surface and the second end surface of the first substrate into a supporting portion.

2. The debinding tool according to claim 1, characterized in that: The surface of the support product is in surface contact, line contact or point contact.

3. The debinding tool as claimed in claim 2, characterized in that: The width of the first gas flow channel is equal to the width of the second gas flow channel.

4. The debinding tool as claimed in claim 3, characterized in that: The diameter of the vent hole is smaller than or equal to the width of the first gas flow channel.

5. The debinding tool according to claim 1, characterized in that: The width of the first gas flow channel is n, the width of the support portion is N, and n≤1 / 4N.

6. The debinding tool according to claim 1, characterized in that: The depths of the first gas flow channel and the second gas flow channel are h, and the thickness of the first substrate is H, satisfying h≤1 / 3H.

7. The debinding tool according to claim 1, characterized in that: Guide pillars are arranged on the four peripheral corners of the first substrate, and guide sleeves having the same number as the guide pillars are arranged on the four peripheral corners of the second substrate, and the guide pillars can be inserted into the guide sleeves.

8. The binder removal tool according to claim 1, characterized in that: The support portion is a cuboid, a cylinder, a semi-cylinder or a hemisphere.

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