Heating device for an EPS panel forming machine

Abstract

The utility model discloses a kind of EPS board forming machine heating devices, including die cavity, die cavity is internally provided with heat conduction cavity, the top of both ends of heat conduction cavity is provided with several heat conduction ports, the front and back sides and left and right sides of heat conduction cavity are provided with several heating holes, heat conduction layer is placed in die cavity, and the top of die cavity is installed with heating bin, the bottom of heating bin is fixedly connected with protruding block, and the inner chamber bottom of heating bin is fixedly connected with several electric heating elements, the inner chamber bottom of heating bin is provided with several heating ports, the bottom of heating bin both sides is provided with several heat pipes, and the top of heating bin is installed with cover plate, the top of cover plate is installed with power supply. The utility model can convert electric energy into heat energy to heat EPS particles, with high heating efficiency, low loss, simple structure, low cost, which can avoid EPS particles to block heating hole, facilitate to quickly overhaul and replace the parts of fault.

Description

Technical Field

[0001] This utility model belongs to the field of EPS board processing technology, and in particular relates to a heating device for an EPS board forming machine. Background Technology

[0002] EPS (Expandable Polystyrene) board molding is a process that involves heating pre-foamed EPS granules, causing them to expand and fuse together in a mold, and finally cooling and shaping them into boards of a specific thickness and size. EPS boards possess excellent thermal insulation properties and good cushioning and shock absorption performance. They are also extremely lightweight, easy to process and install, and therefore widely used in the construction, packaging, and industrial sectors. An EPS board molding machine is a specialized piece of equipment used to heat EPS raw materials with steam and mold them into EPS boards of a specified thickness and size. The heating structure is the "heart" of the EPS board molding machine, and its role is crucial.

[0003] According to the search, a heating device for an EPS board molding machine with publication number CN203004194U is disclosed on the Chinese Patent Network. This heating device can be used for the molding and processing of EPS boards, but there are some defects and deficiencies that need to be improved: (1) The mold cavity of some existing EPS board molding machines is usually equipped with a heating structure. However, most of the heating structures in the current EPS board molding machines use saturated steam as the main heating medium. When the steam is transported to the mold cavity of the molding machine through a long-distance pipeline, there will often be a large amount of heat loss, condensate loss and leakage loss, which will result in a large amount of energy being wasted and the thermal efficiency being low. Steam heating structures are often complex and require the construction of boiler rooms, water treatment systems, steam pipelines, condensate recovery systems, etc., which occupy a large area, have high initial investment, and are complicated to maintain; (2) Due to structural design reasons, some existing EPS board molding machines often have steam holes that are easily blocked by EPS particles when using steam heating structures, resulting in uneven steam distribution and difficulty in fully heating EPS particles, which in turn affects the quality of finished products; (3) Most of the heating structures of existing EPS board molding machines adopt an integrated design, which is often fixed on the molding machine and difficult to disassemble, making it inconvenient to quickly repair and replace them when a fault occurs. Therefore, in view of the above problems, the heating device for EPS board molding machines provided by this utility model is of great significance. Utility Model Content

[0004] This utility model provides a heating device for an EPS board molding machine, which can convert electrical energy into heat energy to heat EPS particles. Compared with steam heating structures, it has a high heat energy conversion rate, low loss, and a simple structure, eliminating the need for supporting boiler systems and significantly reducing initial investment and maintenance. The heat-conducting layer can fully absorb the heat from each heating hole and diffuse the heat to the entire mold cavity. Furthermore, the heat-conducting layer can separate the EPS particles from the heating holes to prevent the EPS particles from clogging the heating holes and affecting the full diffusion of heat energy. With its detachable design, when the power supply or heating element in the heating structure fails, the cover can be opened by unscrewing the nut for quick inspection and replacement of the power supply or heating element. In summary, this invention solves the problems in the background technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a heating device for an EPS board forming machine, comprising a mold cavity, an internal heat-conducting cavity, several heat-conducting ports at both ends of the heat-conducting cavity, several heating holes on the front, back, left, and right sides of the heat-conducting cavity, a heat-conducting layer placed inside the mold cavity, a heating chamber installed on the top of the mold cavity, a protrusion fixedly connected to the bottom of the heating chamber, several heating elements fixedly connected to the bottom of the inner cavity of the heating chamber, several heating ports penetrating the bottom of the protrusion, several heat-conducting pipes on both sides of the bottom of the heating chamber, a cover plate installed on the top of the heating chamber, several wire holes on the cover plate, and a power supply installed on the top of the cover plate.

[0007] Furthermore, both the heat-conducting pipes and the heat-conducting ports are circular, and the number of them is the same. The diameter of the pipes corresponds to the diameter of the heat-conducting ports, and the center of each heat-conducting pipe corresponds one-to-one with the center of each heat-conducting port.

[0008] Furthermore, the cross-section of the mold cavity is rectangular, the heating holes are linearly arrayed along the four inner walls of the mold cavity, and the cross-section of the heat-conducting layer is rectangular, with its outer wall length and width corresponding to the inner wall length and width of the mold cavity, respectively.

[0009] Furthermore, the cross-section of the bump is rectangular, and its length and width are equal to the length and width of the inner wall of the heat-conducting layer, respectively. The heating port is a square structure and is distributed linearly at equal intervals along the length of the bump.

[0010] Furthermore, the heating element is elongated and is equidistantly distributed linearly along the length of the bottom surface of the heating chamber, and the heating element and the heating port are staggered.

[0011] Furthermore, the top edges of both sides of the heating chamber protrude outwards and are provided with several positioning holes. The cross-section of the cover plate and the heating chamber are both rectangular, with their length and width being equal. Several studs are fixedly connected to the bottom sides of the cover plate. The number of studs is the same as that of the positioning holes, and their diameter is equal to that of the positioning holes. The center of each stud corresponds one-to-one with the center of each positioning hole. Each stud is threaded with a nut that mates with it.

[0012] Furthermore, a number of cable management racks are fixedly connected to the bottom of the cover plate. The sides of the cable management racks are U-shaped, and their number is the same as that of the heating elements. The center of each cable management rack corresponds one-to-one with the center of each heating element. A number of cable management holes are opened at the bottom of each cable management rack.

[0013] The present invention has the following advantages over the prior art:

[0014] (1) When the EPS board forming machine heating device of this utility model is used, it can convert electrical energy into heat energy to heat EPS particles. Compared with the steam heating structure, the heat energy conversion rate is high, the loss is small, and the structure is simple. There is no need to build a boiler or other system, and the initial investment and maintenance are greatly reduced.

[0015] (2) When the heating device of the EPS board molding machine in this utility model is used, the heat conduction layer can fully absorb the heat output from each heating hole and diffuse the heat to the surrounding area of ​​the entire mold cavity. The heat conduction layer can also separate the EPS particles from the heating holes to prevent the EPS particles from blocking the heating holes and affecting the full diffusion of heat energy.

[0016] (3) When using the heating device of the EPS board forming machine in this utility model, the detachable design allows the cover to be opened by unscrewing the nut when the power supply or heating element in the heating structure fails, so as to quickly inspect and replace the power supply or heating element.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the heating device for an EPS board forming machine according to the present invention;

[0020] Figure 2 This is a front sectional view of a heating device for an EPS board forming machine according to the present invention;

[0021] Figure 3 This is a schematic diagram of the mold cavity structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the heat-conducting layer in this utility model;

[0023] Figure 5 This is a schematic diagram of the top structure of the heating chamber in this utility model;

[0024] Figure 6 This is a schematic diagram of the bottom structure of the heating chamber in this utility model;

[0025] Figure 7 This is a schematic diagram of the top structure of the cover plate in this utility model;

[0026] Figure 8 This is a schematic diagram of the bottom structure of the cover plate in this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Mold cavity; 2. Heat-conducting cavity; 3. Heat-conducting port; 4. Heating hole; 5. Heat-conducting layer; 6. Heating chamber; 7. Protrusion; 8. Heating element; 9. Heating port; 10. Heat-conducting pipe; 11. Cover plate; 12. Power supply; 13. Positioning hole; 14. Stud; 15. Nut; 16. Cable management rack; 17. Cable management hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Please see Figure 1-8As shown, the heating device for an EPS board molding machine of this utility model includes a mold cavity 1, a heat-conducting cavity 2 inside the mold cavity 1, several heat-conducting ports 3 at both ends of the heat-conducting cavity 2, several heating holes 4 on the front, back and left and right sides of the heat-conducting cavity 2, a heat-conducting layer 5 placed inside the mold cavity 1, and a heating chamber 6 installed on the top of the mold cavity 1. A protrusion 7 is fixedly connected to the bottom of the heating chamber 6, and several heating elements 8 are fixedly connected to the bottom of the inner cavity of the heating chamber 6. Several heating ports 9 are provided, which penetrate the bottom of the protrusion 7. Several heat conduction pipes 10 are provided on both sides of the bottom of the heating chamber 6. A cover plate 11 is installed on the top of the heating chamber 6. Several wire holes are provided on the cover plate 11, and a power supply 12 is installed on the top of the cover plate 11. The power supply 12 can be a storage battery. Wires are connected to the power supply 12. The wires can pass through the wire holes and be electrically connected to each heating element 8 so that the power supply 12 can supply power to the heating element 8. The heating element 8 can generate heat after being powered on.

[0032] The heat-conducting pipes 10 and heat-conducting ports 3 are both circular and the same in number. The diameter of the pipes is equal to the diameter of the heat-conducting ports 3. The center of each heat-conducting pipe 10 corresponds one-to-one with the center of each heat-conducting port 3. When the heating chamber 6 is installed on the top of the mold cavity 1, each heat-conducting pipe 10 can be aligned and inserted into the corresponding heat-conducting port 3. After the heat-conducting pipe 10 is inserted into the heat-conducting port 3, it can be connected to the heat-conducting cavity 2. At this time, the heat generated by the heating element 8 can enter the heat-conducting cavity 2 through each heat-conducting pipe 10 and be discharged through each heating hole 4.

[0033] The mold cavity 1 has a rectangular cross-section, and the heating holes 4 are linearly arrayed along the four inner walls of the mold cavity 1. The heat-conducting layer 5 has a rectangular cross-section, and its outer wall length and width are equal to the inner wall length and width of the mold cavity 1, respectively. The heat-conducting layer 5 is made of a material with strong thermal conductivity, such as copper-aluminum alloy. When the heat-conducting layer 5 is placed in the mold cavity 1, it can adhere to the four inner walls of the mold cavity 1. At this time, the heat-conducting layer 5 can fully absorb the heat discharged from each heating hole 4 and diffuse the heat to the entire perimeter of the mold cavity 1, so as to convert electrical energy into heat energy to heat the EPS particles. Compared with the steam heating structure, the heat energy conversion rate is high, the loss is small, and the structure is simple. There is no need to build a boiler or other systems, and the initial investment and maintenance are greatly reduced. At the same time, the heat-conducting layer 5 can separate the EPS particles from the heating holes 4 to prevent the EPS particles from clogging the heating holes 4 and affecting the full diffusion of heat energy.

[0034] The cross-section of the protrusion 7 is rectangular, and its length and width correspond to the length and width of the inner wall of the heat-conducting layer 5, respectively. The heating port 9 has a square structure and is distributed linearly at equal intervals along the length of the protrusion 7. When the heating chamber 6 is installed on the top of the mold cavity 1, the protrusion 7 can fit against the inner wall of the heat-conducting layer 5. At this time, the protrusion 7 can play a role in sealing and positioning to prevent the heating chamber 6 from becoming loose and having gaps.

[0035] The heating element 8 is long and linearly distributed at equal intervals along the length of the bottom surface of the heating chamber 6. The heating elements 8 and the heating ports 9 are interleaved. The heat generated by the heating elements 8 can be diffused to the top of the mold cavity 1 through each heating port 9 to further expand the coverage of the heat energy, thereby ensuring that the EPS particles can be heated fully and evenly.

[0036] The heating chamber 6 has several positioning holes 13 protruding outwards from its top edges on both sides. Both the cover plate 11 and the heating chamber 6 have rectangular cross-sections with equal lengths and widths. Several studs 14 are fixedly connected to both sides of the bottom of the cover plate 11. The number of studs 14 is the same as the number of positioning holes 13, and their diameters correspond to the diameters of the positioning holes 13. The center of each stud 14 corresponds one-to-one with the center of each positioning hole 13. Each stud 14 is threaded with a mating thread. When the cover plate 11 is placed on top of the heating chamber 6, the studs 14 can be aligned and pass through the corresponding positioning holes 13. At this time, the nuts 15 are threaded onto the studs 14 and tightened. The cover plate 11 can be fixed by the mutual cooperation between the studs 14, positioning holes 13 and nuts 15 to prevent it from loosening. When the power supply 12 or heating element 8 fails, the cover plate 11 can be opened by unscrewing the nuts 15 so that the power supply 12 or heating element 8 can be quickly inspected and replaced.

[0037] The bottom of the cover plate 11 is fixedly connected with several cable management racks 16. The sides of the cable management racks 16 are U-shaped, and their number is the same as that of the heating elements 8. The center of each cable management rack 16 corresponds to the center of each heating element 8. Each cable management rack 16 has several cable management holes 17 at its bottom. When the heating elements 8 are powered by the power supply 12, the wires can be passed through the cable management holes 17 on the corresponding cable management rack 16. At this time, the wires can be separated, positioned and organized by the cable management racks 16 and the cable management holes 17 to prevent the wires from getting tangled and twisted when there are many wires, which would affect the power supply.

[0038] All standard parts used in the application documents can be purchased from the market. All components in this application documents can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.

[0039] The working principle of this utility model is as follows:

[0040] In use, this invention allows the heating device to be installed at a suitable position on the EPS board molding machine. When the pre-foamed EPS particles are introduced into the mold cavity 1 by the EPS board molding machine, the heating element 8 in the heating chamber 6 can be powered by the power supply 12, so that the heating element 8 generates heat after being energized. The heat generated by the heating element 8 can enter the heat conduction cavity 2 through each heat conduction pipe 10 and be discharged through each heating hole 4. The heat conduction layer 5 can fully absorb the heat discharged from each heating hole 4 and diffuse the heat to the entire periphery of the mold cavity 1, so as to convert electrical energy into heat energy to heat the EPS particles. Compared with the steam heating structure, the heat energy... It has a high conversion rate, low loss, and simple structure, eliminating the need for supporting systems such as boilers, thus greatly reducing initial investment and maintenance. At the same time, the heat-conducting layer 5 can separate the EPS particles from the heating holes 4 to prevent the EPS particles from clogging the heating holes 4 and affecting the full diffusion of heat energy. In addition, the heat generated by the heating element 8 can be diffused to the top of the mold cavity 1 through each heating port 9 to further expand the coverage of heat energy, thereby ensuring that the EPS particles can be fully and evenly heated. When the power supply 12 or the heating element 8 fails, the cover plate 11 can be opened by unscrewing the nut 15 to quickly inspect and replace the power supply 12 or the heating element 8.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heating device for an EPS board forming machine, characterized in that, The device includes a mold cavity, inside which a heat-conducting cavity is formed. Several heat-conducting ports are formed at the top of both ends of the heat-conducting cavity. Several heating holes are formed on the front, back, left, and right sides of the heat-conducting cavity. A heat-conducting layer is placed inside the mold cavity, and a heating chamber is installed on the top of the mold cavity. A protrusion is fixedly connected to the bottom of the heating chamber, and several heating elements are fixedly connected to the bottom of the inner cavity of the heating chamber. Several heating ports are formed at the bottom of the inner cavity of the heating chamber, penetrating the bottom of the protrusion. Several heat-conducting pipes are formed on both sides of the bottom of the heating chamber, and a cover plate is installed on the top of the heating chamber. Several wire holes are formed on the cover plate, and a power supply is installed on the top of the cover plate.

2. The heating device for an EPS board forming machine according to claim 1, characterized in that, The heat-conducting pipes and heat-conducting ports are all circular, and the number of them is the same. The diameter of the pipes corresponds to the diameter of the heat-conducting ports, and the center of each heat-conducting pipe corresponds one-to-one with the center of each heat-conducting port.

3. The heating device for an EPS board forming machine according to claim 1, characterized in that, The cross-section of the mold cavity is rectangular, the heating holes are linearly arrayed along the four inner walls of the mold cavity, and the cross-section of the heat-conducting layer is rectangular, with the length and width of its outer wall being equal to the length and width of the inner wall of the mold cavity, respectively.

4. The heating device for an EPS board forming machine according to claim 1, characterized in that, The cross-section of the protrusion is rectangular, and its length and width are equal to the length and width of the inner wall of the heat-conducting layer, respectively. The heating port is a square structure and is distributed linearly at equal intervals along the length of the protrusion.

5. The heating device for an EPS board forming machine according to claim 1, characterized in that, The heating element is long and strip-shaped, and is distributed linearly at equal intervals along the length of the bottom surface of the heating chamber. The heating element and the heating port are staggered.

6. The heating device for an EPS board forming machine according to claim 1, characterized in that, The heating chamber has several positioning holes protruding outward from the top edges on both sides. The cover plate and the heating chamber have rectangular cross-sections with equal length and width. Several studs are fixedly connected to the bottom sides of the cover plate. The number of studs is the same as the number of positioning holes, and their diameter is equal to the diameter of the positioning holes. The center of each stud corresponds one-to-one with the center of each positioning hole. Each stud is threaded with a nut that matches it.

7. The heating device for an EPS board forming machine according to claim 1, characterized in that, The bottom of the cover plate is fixedly connected to several cable management racks. The sides of the cable management racks are U-shaped, and their number is the same as that of the heating elements. The center of each cable management rack corresponds one-to-one with the center of each heating element. Each cable management rack has several cable management holes at its bottom.

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