High-frequency heating curing matrix preparation equipment

Abstract

The utility model discloses high-frequency heating curing matrix preparation equipment, and relates to the technical field of curing matrix preparation, an equipment body of the equipment is sequentially provided with a pressure mechanism, a heating pressing block, a mold and a heating bottom plate from top to bottom, the heating bottom plate is horizontally arranged on a workbench of the equipment body, and the mold is placed on the heating bottom plate; the top of the mold is open; the heating pressing block can vertically move in the mold under the control of the pressure mechanism; heating devices are arranged on the periphery of the mold, the heating pressing block and the heating bottom plate; and the heating device adopts a high-frequency heating mode. And the heating device can heat the surface of the mold at the same time, so that the heating uniformity is improved. The heating mode of the heating device adopts a high-frequency heating technology, and the heating device has the characteristics of high heating speed, good heating uniformity, low energy consumption and the like, so that the preparation cost of the curing matrix is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of solidified matrix preparation, in particular to a high-frequency heating solidified matrix preparation device. Background Art

[0002] As people's living standards continue to improve, the field of vertical greening continues to rise. At present, horticultural substrates are mostly loose substrates, which are difficult to apply to vertical greening; on the other hand, loose substrates are easily washed away by rainwater, causing the loss of substrates, thus affecting the growth and development of plants.

[0003] The loose matrix is ​​solidified by certain technical means to prepare a solidified matrix. Compared with the traditional loose cultivation matrix, the solidified matrix has a certain resistance to rain erosion and is non-toxic and harmless. It can not only meet the growth needs of plants, but also meet the requirements of the matrix in the field of vertical greening.

[0004] When preparing the solidification matrix, a certain amount of hot-melt fiber is generally added to the matrix. The hot-melt fiber is a substance composed of semi-meltable polyester fibers in a skin-core structure. During the melting process, a three-dimensional network structure is formed inside the matrix. During preparation, the solidification matrix needs to be heated to melt the hot-melt fiber inside it, and then the matrix is ​​pressed into shape using a pressing device. Due to the presence of hot-melt fibers in the solidification matrix, the prepared solidification matrix has certain air permeability and structural strength, which is more suitable for vertical greening cultivation.

[0005] Most of the existing matrix curing devices use steam heating, that is, the temperature of high-temperature steam is used to penetrate from the bottom of the matrix to the top of the matrix, so that the hot-melt fibers inside the matrix are melted and solidified, and quickly formed under the action of pressure. This heating method consumes a lot of energy in the process of generating steam, and a lot of steam is wasted; at the same time, its heating uniformity needs to be improved. Therefore, it is necessary to find a method with low energy consumption, good heating uniformity and fast heating to prepare a solidified matrix. Utility Model Content

[0006] The utility model aims to overcome the shortcomings of the prior art and provide a high-frequency heating and curing matrix preparation device.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] A high-frequency heating solidified matrix preparation device comprises a device body, on which a pressure mechanism, a heating block connected to the pressure mechanism, a mold and a heating base plate are arranged in sequence from top to bottom, the heating base plate is horizontally arranged on a workbench of the device body, the mold is placed on the heating base plate, and the top of the mold is open; under the control of the pressure mechanism, the heating block can move vertically in the mold; heating devices are arranged around the mold, on the heating block and on the heating base plate; the heating method of the heating device adopts high-frequency heating.

[0009] Furthermore, in the present invention, the above-mentioned mold is a cubic structure, a cylindrical structure or a regular hexahedron structure.

[0010] Furthermore, in the present invention, the heating device comprises a first induction coil disposed on the upper surface of the heating block, a second induction coil disposed under the heating bottom plate, and a third induction coil surrounding the mold.

[0011] Furthermore, in the present invention, the distance from the first induction coil to the upper surface of the heating block, the distance from the second induction coil to the lower surface of the heating base plate, and the distance from the third induction coil to the corresponding side plate of the mold are all 0.5-1.5 cm.

[0012] Furthermore, in the present invention, the first induction coil, the second induction coil and the third induction coil are all hollow copper tubes, and circulating coolant is injected into the three tubes.

[0013] Furthermore, in the utility model, the heating device comprises a side plate heating mechanism horizontally arranged on the workbench of the equipment body, and the side plate heating mechanism is used to heat each side plate of the mold.

[0014] Furthermore, in the present invention, the side plate heating mechanism comprises a plurality of adjustable heating elements arranged in a circular array on the workbench of the equipment body, and the plurality of adjustable heating elements can heat each side plate of the mold respectively.

[0015] Furthermore, in the utility model, any of the above-mentioned adjustable heating elements includes a hydraulic cylinder arranged on the workbench of the above-mentioned equipment body and a vertical plate connected to the execution end of the above-mentioned hydraulic cylinder, and the above-mentioned vertical plate can be fitted with the side plate corresponding to the above-mentioned mold under the push of the above-mentioned hydraulic cylinder. The above-mentioned vertical plate is provided with a groove near the side wall of the above-mentioned mold, and an induction coil is placed in the above-mentioned groove.

[0016] Furthermore, in the present invention, when the mold is heated, the distance between the induction coil on any of the vertical plates and the corresponding side plate of the mold is 0.5-1.5 cm.

[0017] The beneficial effects of the utility model are:

[0018] The utility model provides a high-frequency heating solidified matrix preparation device, the heating device of which can heat the surface of the mold at the same time, thereby improving the uniformity of heating. The heating method of the heating device adopts high-frequency heating technology, which has the characteristics of fast heating, good heating uniformity and low energy consumption. Since only the surface layer of the matrix needs to be quickly heated instead of the entire matrix, the energy consumption cost of preparing the solidified matrix is ​​reduced; at the same time, the solidified matrix prepared by the matrix solidification device using the high-frequency heating method has basically the same temperature on each surface of the matrix due to its uniform heating, and the melting degree of the hot-melt fiber on each surface layer of the matrix is ​​basically the same, so that the physical and chemical properties of the matrix are uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0021] Figure 3 It is a structural schematic diagram of the side plate heating mechanism of the second embodiment of the utility model.

[0022] In the figure: 101 - equipment body; 201 - pressure mechanism; 301 - heating block; 401 - mold; 501 - heating base plate; 601 - first induction coil; 602 - second induction coil; 603 - third induction coil; 701 - hydraulic cylinder; 702 - vertical plate. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1 , the utility model provides a technical solution:

[0026] A high-frequency heating solidified matrix preparation device includes a device body 101, on which a pressure mechanism 201, a heating block 301 connected to the pressure mechanism 201, a mold 401 and a heating base plate 501 are sequentially installed from top to bottom. The heating base plate 501 is horizontally installed on the workbench of the device body 101, and the mold 401 is placed on the heating base plate 501, and the top of the mold 401 is open; under the control of the pressure mechanism 201, the heating block 301 can move vertically in the mold 401; heating devices are installed around the mold 401, on the heating block 301 and on the heating base plate 501. In this embodiment, the mold 401 is a rectangular parallelepiped structure, which is open at the top and bottom. In other embodiments, the mold 401 can also be a cylindrical structure, a cubic structure, etc. The heating method of the heating device adopts high-frequency heating.

[0027] High-frequency heating is a process that uses a high-frequency electromagnetic field to heat an object. Its working principle is to use a high-frequency electromagnetic field to generate an induced current inside the object, causing the object to heat up. The specific principle is as follows:

[0028] 1. High-frequency electromagnetic field generation: High-frequency electromagnetic waves are generated by a high-frequency generator, generally in the frequency range of 300kHz to 10MHz. High-frequency electromagnetic waves generate high-frequency magnetic fields through induction coils.

[0029] 2. High-frequency electromagnetic field propagation: Through electromagnetic induction, high-frequency electromagnetic fields generate induced currents on the surface of workpieces. Due to the characteristics of high-frequency electromagnetic waves, they can penetrate the surface of objects and enter the interior.

[0030] 3. Induction current generation: When high-frequency electromagnetic waves pass through an object, the conductor (such as metal) inside the object will be induced and generate an induced current. The magnitude of the induced current depends on the resistance of the object and the strength of the high-frequency electric field.

[0031] 4. Induced current heating: According to Joule's law, induced current produces a thermal effect inside an object. Specifically, the induced current multiplied by the resistance of the object generates heat that raises the temperature of the object.

[0032] The working principle of high-frequency heating can be applied to a variety of industries and fields, such as metal heating, plastic heating, matching, porcelain, etc. Compared with traditional heating methods, high-frequency heating has the advantages of fast heating speed, high efficiency and high precision. It can achieve local heating of objects, avoiding the problem of overheating or energy waste. In addition, high-frequency heating can also achieve precise control and steaming of objects by adjusting the frequency and power of the high-frequency electromagnetic field.

[0033] When the mold 401 and the heating base plate 501 are heated and generate heat, the heat will be transferred to the solid matrix in the mold 401, and the hot melt fibers in the solid matrix will be heated and melted. During the heating process of the hot melt fibers, a three-dimensional mesh structure will be formed inside the solid matrix, and external force needs to be applied to press the matrix to form it. After the heating is completed, the heating block 301 moves toward the mold 401 under the drive of the pressure mechanism 201. After moving into the mold 401, the solid matrix can be pressed and formed. At the same time, the heating block 301 heated by the first induction coil 601 heats the upper part of the solid matrix. The pressure mechanism 201 can use a common hydraulic mechanism.

[0034] Specifically, the heating device includes a first induction coil 601 disposed on the upper surface of the heating block 301, a second induction coil 602 disposed under the heating base plate 501, and a third induction coil 603 surrounding the mold 401. The three sets of coils are connected to a high-frequency heating machine.

[0035] Since the induction coil cannot directly contact the object when heating it, it needs to keep a certain distance from the object. After testing, the distance from the first induction coil 601 to the upper surface of the heating block 301, the distance from the second induction coil 602 to the lower surface of the heating bottom plate 501, and the distance from the third induction coil 603 to the corresponding side plate of the mold 401 are all 0.5-1.5 cm, which is the best.

[0036] In order to facilitate heat transfer and facilitate the cooling device to cool the induction coil after use, the first induction coil 601, the second induction coil 602 and the third induction coil 603 are all hollow copper tubes, and a circulating coolant is injected into the three. The cooling device and the coolant injection method are both existing technologies and will not be described in detail here.

[0037] Working principle:

[0038] First, a certain amount of solid matrix is ​​added to the mold 401, and then the first induction coil 601, the second induction coil 602 and the third induction coil 603 work to heat the various surfaces of the mold 401, the heating base plate 501 and the heating block 301. The presence of the induction coils causes the mold 401 and the heating base plate 501 to generate heat, and this heat is directly transferred to the solid matrix to melt the hot-melt fibers in the solid matrix. After the heating is completed, the pressure mechanism 201 is started to drive the heating block 301 to move toward the top of the mold 401. During this process, the first induction coil 601 and the heating block 301 move synchronously. The pressure mechanism 201 controls the heating block 301 to compress the matrix raw material downward, and the heated heating block 301 heats the upper part of the solid matrix. After the solid matrix is ​​formed, the pressure mechanism 201 controls the heating block 301 to move upward, and then the solid matrix formed in the mold 401 can be taken out.

[0039] Embodiment 2

[0040] See also Figure 2 and Figure 3 The difference between Example 2 and Example 1 is that the heating device in this embodiment includes a side plate heating mechanism horizontally installed on the workbench of the equipment body 101. In this embodiment, the mold 401 is a rectangular structure, and the side plate heating mechanism is used to heat the four side plates of the mold 401.

[0041] Specifically, the side plate heating mechanism includes four adjustable heating elements installed in a circular array on the workbench of the equipment body 101, and the four adjustable heating elements can respectively heat the four side plates of the mold 401. In other embodiments, a corresponding number of adjustable heating elements can be set according to the structure of the mold 401 (different structures correspond to different numbers of side plates).

[0042] Specifically, the arbitrarily adjustable heating element includes a hydraulic cylinder 701 installed on the workbench of the equipment body 101 and a vertical plate 702 connected to the execution end of the hydraulic cylinder 701. The vertical plate 702 can fit with the corresponding side plate of the mold 401 under the push of the hydraulic cylinder 701. The vertical plate 702 is provided with a groove near the side wall of the mold 401, and an induction coil is placed in the groove. This design can facilitate the adjustment of the distance between the four vertical plates 702 and the corresponding side plates of the mold 401, so that the heating device can heat molds 401 of different sizes.

[0043] When heating the mold 401, the induction coil cannot directly contact the object when heating the object, so the induction coil needs to keep a certain distance from the object. The distance between the induction coil on any vertical plate 702 and the corresponding side plate of the mold 401 is 0.5-1.5 cm.

[0044] Working principle:

[0045] First, a certain amount of solid matrix is ​​added to the mold 401, and then the pressure mechanism 201 is started to drive the heating block 301 to move to the top of the mold 401. When the distance between the first induction coil 601 and the upper surface of the solid matrix is ​​0.5-1.5cm, the heating block 301 stops moving downward. Then, four hydraulic cylinders 701 are started, and the four vertical plates 702 are respectively close to the four side plates of the mold 401 under the control of the corresponding hydraulic cylinders 701, and stop moving when the vertical plates 702 move to the appropriate position. The heating coils on the heating block 301, the heating bottom plate 501 and the four vertical plates 702 heat the side plates and bottom plate of the mold 401. After the mold 401 is heated by the induction coil, its heat is transferred to the solid matrix therein to melt the hot-melt fiber in the solid matrix. After the heating is completed, all coils stop working, and the cooling device injects a circulating coolant into all the induction coils respectively. Then the pressure mechanism 201 controls the heating block 301 to press the solid matrix downward to shape it. After the molding, the pressure mechanism 201 controls the heating pressing block 301 to move upward, and then the molded solid matrix in the mold 401 is taken out.

[0046] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A high frequency heating solidified matrix preparation device, comprising a device body (101), characterized in that: The device body (101) is provided with a pressure mechanism (201), a heating block (301) connected to the pressure mechanism (201), a mold (401) and a heating base plate (501) in sequence from top to bottom; the heating base plate (501) is horizontally arranged on a workbench of the device body (101); the mold (401) is placed on the heating base plate (501); the top of the mold (401) is open; under the control of the pressure mechanism (201), the heating block (301) can move vertically in the mold (401); heating devices are arranged around the mold (401), on the heating block (301) and on the heating base plate (501); the heating method of the heating device adopts high-frequency heating.

2. The high frequency heating solidification matrix preparation device according to claim 1, characterized in that: The mold (401) is a cubic structure, a cylindrical structure, or a regular hexahedron structure.

3. The high frequency heating solidification matrix preparation device according to claim 2, characterized in that: The heating device comprises a first induction coil (601) arranged on the upper surface of the heating block (301), a second induction coil (602) arranged under the heating base plate (501), and a third induction coil (603) surrounding the mold (401).

4. The high frequency heating solidification matrix preparation device according to claim 3, characterized in that: The distance between the first induction coil (601) and the upper surface of the heating block (301), the distance between the second induction coil (602) and the lower surface of the heating base plate (501), and the distance between the third induction coil (603) and the corresponding side plate of the mold (401) are all 0.5-1.5 cm.

5. A high frequency heating solidified matrix preparation device according to claim 3 or 4, characterized in that: The first induction coil (601), the second induction coil (602) and the third induction coil (603) are all hollow copper tubes, and a circulating coolant is injected into the three tubes.

6. The high frequency heating solidification matrix preparation device according to claim 1, characterized in that: The heating device comprises a side plate heating mechanism horizontally arranged on a workbench of the equipment body (101), and the side plate heating mechanism is used to heat each side plate of the mold (401).

7. The high frequency heating solidification matrix preparation device according to claim 6, characterized in that: The side plate heating mechanism comprises a plurality of adjustable heating elements arranged in a circular array on a workbench of the equipment body (101), and the plurality of adjustable heating elements can heat each side plate of the mold (401) respectively.

8. The high frequency heating solidification matrix preparation device according to claim 7, characterized in that: Any of the adjustable heating elements comprises a hydraulic cylinder (701) arranged on a workbench of the equipment body (101) and a vertical plate (702) connected to an execution end of the hydraulic cylinder (701); the vertical plate (702) can be fitted with a side plate corresponding to the mold (401) under the push of the hydraulic cylinder (701); a groove is provided on the side wall of the vertical plate (702) close to the mold (401), and an induction coil is placed in the groove.

9. The high frequency heating solidification matrix preparation device according to claim 8, characterized in that: When the mold (401) is heated, the distance between the induction coil on any of the vertical plates (702) and the corresponding side plate of the mold (401) is 0.5-1.5 cm.

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